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US20100047095A1 - Vacuum pump - Google Patents

Vacuum pump Download PDF

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Publication number
US20100047095A1
US20100047095A1 US12/376,186 US37618607A US2010047095A1 US 20100047095 A1 US20100047095 A1 US 20100047095A1 US 37618607 A US37618607 A US 37618607A US 2010047095 A1 US2010047095 A1 US 2010047095A1
Authority
US
United States
Prior art keywords
housing
vacuum pump
sealing compound
compound body
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/376,186
Inventor
Heinrich Englaender
Christian Harig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leybold GmbH
Original Assignee
Oerlikon Leybold Vacuum GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oerlikon Leybold Vacuum GmbH filed Critical Oerlikon Leybold Vacuum GmbH
Assigned to OERLIKON LEYBOLD VACUUM GMBH reassignment OERLIKON LEYBOLD VACUUM GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENGLANDER, HEINRICH, HARIG, CHRISTIAN
Publication of US20100047095A1 publication Critical patent/US20100047095A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/168—Pumps specially adapted to produce a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0693—Details or arrangements of the wiring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases

Definitions

  • the invention relates to a vacuum pump wherein the pump housing is provided with a gas-tight electrical leadthrough assembly.
  • Vacuum pumps normally comprise electrical components arranged within a vacuum-tight housing, such as e.g. an electric drive motor, electric sensors, a magnetic bearing etc.
  • the electrical components on the vacuum side have to be connected to the outer side of the housing through electric lines.
  • electric lines have to be led from the interior of the housing to the exterior of the housing via a gas-tight electrical leadthrough assembly.
  • leadthrough assemblies consisting of a contact plate provided with contact pins passing therethrough, said contact plate being configured to close a corresponding opening of the housing. With the aid of a sealing ring, the contact plate is sealed towards the edge of said housing opening.
  • the sealing of said contact pins in the contact plate can be effected only with difficulties and will not be reliable in case that mechanical stresses happen to act on the contact plate.
  • the vacuum pump comprises a vacuum-tight housing and an electrical component arranged within the housing.
  • the gas-tight electrical leadthrough assembly for producing an electrical connection between said electrical component and the exterior of the housing is formed by an opening in the housing; a sealing compound body seated on the opening of the housing, with an electric line, extending between the inner side of the housing and the outer side of the housing, passing through said sealing compound body; a sealing ring arranged between the opening edge of the opening of the housing and the sealing compound body; and a fixing means for fastening the sealing compound body to the housing.
  • the leadthrough assembly substantially consists of three parts, namely the sealing compound body having all of the electric lines cast into it, the sealing ring for safeguarding a gas-tight and vacuum-tight sealing action between the sealing compound body and the edge of the opening, and a sealing-compound body fixing means which is effective to permanently press the sealing compound body onto the opening edge of the opening of the housing.
  • the sealing compound has a certain elasticity, safeguarding the gas-tight and vacuum-tight passage of the electric line or lines through the sealing compound body.
  • the electric line or lines should at least slightly project outwards from of the sealing compound body so as to allow for the attachment of electric connection lines. The sealing effect between the sealing compound body and the edge of the opening is reliably obtained by a sealing ring.
  • the thickness of the sealing compound body should be at least 5 mm and preferably 10 mm so as to guarantee a sufficiently long sealing space between the electric line and the sealing compound.
  • the sealing compound body is seated from the outside onto the opening edge of the opening of the housing.
  • the sealing compound body will be pressed onto the edge of the opening of the housing. In this manner, the sealing effect between the sealing compound body and the edge of the opening of the housing will be additionally intensified when the vacuum pump is operated.
  • the fixing means is a sealing-compound housing configured to almost fully take up the sealing compound and to press the sealing compound against the edge of the opening of the housing.
  • the sealing-compound housing comprises only one proximal opening and one distal opening for the electric line or lines.
  • the primary function of the sealing-compound housing resides in fixing the sealing compound body in place while, on the other hand, this housing does not primarily have a sealing function. Nonetheless, the sealing-compound housing may in fact have a sealing effect as well.
  • the electric line can comprise a conductive board arranged in the sealing compound.
  • the electric line is partially realized in the form of a conductor trace on a printed circuit board.
  • the electric line can further comprise respectively one plug projecting from the sealing compound body towards the interior of the housing, and one plug projecting from the sealing compound body towards the exterior of the housing. Said two electric plugs can be connected to each other by the printed circuit board but can also be electrically connected to each other in another manner.
  • the printed circuit board comprises electronic components.
  • Possible electronic components in this regard are all electronic components which may serve for amplification, interference suppression or another manipulation of electric signals, i.e. components such as, for instance, amplifiers, suppressor chokes and capacitors, integrated circuits for signal processing, etc.
  • the electronic component is a readable pump-data memory adapted for storage therein of pump-specific functional parameters, e.g. an error history of the respective vacuum pump, and for retrieval therefrom of such functional parameters at any time.
  • pump-specific functional parameters e.g. an error history of the respective vacuum pump
  • the sealing compound material is an epoxy resin.
  • Epoxy resins are vacuum-tight and elastic and are castable at relatively low temperatures which are not destructive to electronic components.
  • the FIGURE schematically shows a vacuum pump and, in partly sectional view, the vacuum pump housing provided with a gas-tight electrical lead-through assembly.
  • a vacuum pump 10 which can be configured as a displacement pump but preferably will be configured as a high-vacuum turbomolecular pump with magnetic bearing.
  • Vacuum pump 10 comprises a vacuum-tight metal housing 12 having a housing wall 13 and accommodating a plurality of electrical components 14 , 16 , 18 , notably an electric drive motor 14 , a magnetic bearing 16 as well as pump sensors 18 .
  • Drive motor 14 is operative to drive a pump rotor of the turbomolecular pump via a shaft 17 .
  • Vacuum pump 10 is provided with a gas-tight electrical leadthrough assembly 20 for establishing an electrical connection between said electrical components 14 , 16 , 18 and the exterior of said housing.
  • Leadthrough assembly 20 is substantially formed by a housing opening 22 in housing wall 13 ; a sealing compound body 24 seated on said housing opening 22 on the outside of the latter; an elastic sealing ring 26 between an opening edge 28 of housing opening 22 and the sealing compound body; a fixing means 32 formed as a sealing-compound housing 30 ; and an electric line 34 .
  • Said sealing ring 26 is seated in an annular groove 27 of sealing compound body 24 .
  • Electric line 34 is formed by a proximal electric plug 40 , a distal electric plug 42 , and a printed circuit board 44 comprising conductive traces and electrical components 46 , 47 , 48 .
  • Said electrical components 46 - 48 are an integrated circuit 46 and passive components 47 , 48 .
  • Said plugs 40 , 42 comprise more than 50 plug pins, each one of them individually connected to conductive traces on circuit board 44 .
  • the functional parameters Stored in integrated circuit 46 are functional parameters and data of vacuum pump 10 .
  • the functional parameters are pump-specific and include an error history of vacuum pump 10 which, using a suitable reading device 50 , can be read out via distal plug 42 through an electrical data line 52 adapted to be plugged onto plug 42 .
  • the sealing compound material is an epoxy resin.
  • the epoxy resin can be provided with fine-granulated admixtures which have a positive influence on thermal expansion, thermal conductivity and/or other physical parameters.
  • the sealing compound body 24 is pressed onto said opening edge 28 , resulting in a gas-tight and vacuum-tight sealing condition between opening edge 28 and sealing compound body 24 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Compressor (AREA)

Abstract

A vacuum pump (10) has a vacuum-tight housing (12) and having a gas-tight electrical leadthrough assembly (20) for producing an electrical connection between an electrical component (14,16,18) within the housing (12) and the exterior of the housing. The leadthrough assembly (20) is formed by a housing opening (22), by a sealing compound body (24) seated on the opening, by an electric line in the sealing compound body (24), by a sealing ring (26) between the opening edge of the housing opening (22) and the sealing compound body (24), and by a fixing means (32) for fastening the sealing compound body (24) to the housing (12).

Description

    BACKGROUND
  • The invention relates to a vacuum pump wherein the pump housing is provided with a gas-tight electrical leadthrough assembly.
  • Vacuum pumps normally comprise electrical components arranged within a vacuum-tight housing, such as e.g. an electric drive motor, electric sensors, a magnetic bearing etc. The electrical components on the vacuum side have to be connected to the outer side of the housing through electric lines. For this purpose, electric lines have to be led from the interior of the housing to the exterior of the housing via a gas-tight electrical leadthrough assembly.
  • Known from the state of the art are leadthrough assemblies consisting of a contact plate provided with contact pins passing therethrough, said contact plate being configured to close a corresponding opening of the housing. With the aid of a sealing ring, the contact plate is sealed towards the edge of said housing opening. The sealing of said contact pins in the contact plate can be effected only with difficulties and will not be reliable in case that mechanical stresses happen to act on the contact plate.
  • In view of the above, it is an object of the invention to provide a vacuum pump whose housing is provided with a reliable gas-tight electrical lead-through assembly.
    • SUMMARY
  • The vacuum pump according to the invention comprises a vacuum-tight housing and an electrical component arranged within the housing. The gas-tight electrical leadthrough assembly for producing an electrical connection between said electrical component and the exterior of the housing is formed by an opening in the housing; a sealing compound body seated on the opening of the housing, with an electric line, extending between the inner side of the housing and the outer side of the housing, passing through said sealing compound body; a sealing ring arranged between the opening edge of the opening of the housing and the sealing compound body; and a fixing means for fastening the sealing compound body to the housing. Thus, the leadthrough assembly substantially consists of three parts, namely the sealing compound body having all of the electric lines cast into it, the sealing ring for safeguarding a gas-tight and vacuum-tight sealing action between the sealing compound body and the edge of the opening, and a sealing-compound body fixing means which is effective to permanently press the sealing compound body onto the opening edge of the opening of the housing.
  • The sealing compound has a certain elasticity, safeguarding the gas-tight and vacuum-tight passage of the electric line or lines through the sealing compound body. Preferably, both proximally and distally, the electric line or lines should at least slightly project outwards from of the sealing compound body so as to allow for the attachment of electric connection lines. The sealing effect between the sealing compound body and the edge of the opening is reliably obtained by a sealing ring.
  • The thickness of the sealing compound body should be at least 5 mm and preferably 10 mm so as to guarantee a sufficiently long sealing space between the electric line and the sealing compound.
  • By casting all of the electric lines into a monolithic, elastic sealing compound body, it is made possible to realize a reliable, vacuum-tight passage in a relatively simple manner also in case of a large number of electric lines. This is of relevance particularly for vacuum pumps with magnetic bearings since these pumps will often require a number of 50 or more electric conduits to be led through the vacuum-tight housing.
  • According to a preferred embodiment, the sealing compound body is seated from the outside onto the opening edge of the opening of the housing. During operation, under the effect of the differential pressure between the atmospheric air pressure acting from the outside and the vacuum prevailing in the housing, the sealing compound body will be pressed onto the edge of the opening of the housing. In this manner, the sealing effect between the sealing compound body and the edge of the opening of the housing will be additionally intensified when the vacuum pump is operated.
  • Preferably, the fixing means is a sealing-compound housing configured to almost fully take up the sealing compound and to press the sealing compound against the edge of the opening of the housing. The sealing-compound housing comprises only one proximal opening and one distal opening for the electric line or lines. The primary function of the sealing-compound housing resides in fixing the sealing compound body in place while, on the other hand, this housing does not primarily have a sealing function. Nonetheless, the sealing-compound housing may in fact have a sealing effect as well.
  • According to a preferred embodiment, the electric line can comprise a conductive board arranged in the sealing compound. Thus, the electric line is partially realized in the form of a conductor trace on a printed circuit board. The electric line can further comprise respectively one plug projecting from the sealing compound body towards the interior of the housing, and one plug projecting from the sealing compound body towards the exterior of the housing. Said two electric plugs can be connected to each other by the printed circuit board but can also be electrically connected to each other in another manner.
  • According to a preferred embodiment, the printed circuit board comprises electronic components. Possible electronic components in this regard are all electronic components which may serve for amplification, interference suppression or another manipulation of electric signals, i.e. components such as, for instance, amplifiers, suppressor chokes and capacitors, integrated circuits for signal processing, etc.
  • Preferably, the electronic component is a readable pump-data memory adapted for storage therein of pump-specific functional parameters, e.g. an error history of the respective vacuum pump, and for retrieval therefrom of such functional parameters at any time.
  • Preferably, the sealing compound material is an epoxy resin. Epoxy resins are vacuum-tight and elastic and are castable at relatively low temperatures which are not destructive to electronic components.
  • The following is a detailed description of an embodiment of the invention with reference to the drawing.
    • BRIEF DESCRIPTION OF THE DRAWING
  • The FIGURE schematically shows a vacuum pump and, in partly sectional view, the vacuum pump housing provided with a gas-tight electrical lead-through assembly.
    •  DETAILED DESCRIPTION
  • Schematically shown in the FIGURE is a vacuum pump 10 which can be configured as a displacement pump but preferably will be configured as a high-vacuum turbomolecular pump with magnetic bearing.
  • Vacuum pump 10 comprises a vacuum-tight metal housing 12 having a housing wall 13 and accommodating a plurality of electrical components 14,16,18, notably an electric drive motor 14, a magnetic bearing 16 as well as pump sensors 18. Drive motor 14 is operative to drive a pump rotor of the turbomolecular pump via a shaft 17.
  • Vacuum pump 10 is provided with a gas-tight electrical leadthrough assembly 20 for establishing an electrical connection between said electrical components 14,16,18 and the exterior of said housing. Leadthrough assembly 20 is substantially formed by a housing opening 22 in housing wall 13; a sealing compound body 24 seated on said housing opening 22 on the outside of the latter; an elastic sealing ring 26 between an opening edge 28 of housing opening 22 and the sealing compound body; a fixing means 32 formed as a sealing-compound housing 30; and an electric line 34. Said sealing ring 26 is seated in an annular groove 27 of sealing compound body 24.
  • Electric line 34 is formed by a proximal electric plug 40, a distal electric plug 42, and a printed circuit board 44 comprising conductive traces and electrical components 46,47,48. Said electrical components 46-48 are an integrated circuit 46 and passive components 47,48. Said plugs 40,42 comprise more than 50 plug pins, each one of them individually connected to conductive traces on circuit board 44.
  • Stored in integrated circuit 46 are functional parameters and data of vacuum pump 10. The functional parameters are pump-specific and include an error history of vacuum pump 10 which, using a suitable reading device 50, can be read out via distal plug 42 through an electrical data line 52 adapted to be plugged onto plug 42.
  • All parts of electric line 34 are enclosed in a gas-tight manner within the sealing compound body 24 cast therearound. The sealing compound material is an epoxy resin. The epoxy resin can be provided with fine-granulated admixtures which have a positive influence on thermal expansion, thermal conductivity and/or other physical parameters.
  • Under the effect of the cup-shaped sealing-compound housing 30 forming a fixing means 32 and being fixed, e.g. screwed, to the outside of housing 30, the sealing compound body 24 is pressed onto said opening edge 28, resulting in a gas-tight and vacuum-tight sealing condition between opening edge 28 and sealing compound body 24.
  • The invention has been described with reference to the preferred embodiments. Modifications and alterations may occur to others upon reading and understanding the preceding detailed description. It is intended that the invention be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. A vacuum pump comprising
a vacuum-tight housing,
an elastic component arranged within said housing,
a gas-tight electrical leadthrough assembly for producing an electrical connection between an electrical component within the housing and the exterior of the housing,
wherein said leadthrough assembly is formed by
a housing opening,
a sealing compound body positioned on said housing opening and enclosing an electric line extending between the interior of the housing and the exterior of the housing,
a sealing ring between an opening edge of the housing opening and the sealing compound body, and
a fixing means for attachment of the sealing compound body to the housing.
2. The vacuum pump according to claim 1, wherein said sealing compound body is mounted to said housing opening from the outside.
3. The vacuum pump according to claim 1, wherein said fixing means is a sealing-compound housing.
4. The vacuum pump according to claim 1, wherein said electric line comprises a circuit board arranged within the sealing compound body.
5. The vacuum pump according to claim 1, wherein said electric line comprises respectively one electric plug towards the interior and towards the exterior.
6. The vacuum pump according to claim 4, wherein said circuit board comprises electronic components.
7. The vacuum pump according to claim 6, wherein one of said electronic components is configured as a readable pump-data memory.
8. The vacuum pump according to claim 1, wherein the material of the sealing compound body is an epoxy resin.
US12/376,186 2006-08-04 2007-07-18 Vacuum pump Abandoned US20100047095A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006036493.7 2006-08-04
DE102006036493A DE102006036493A1 (en) 2006-08-04 2006-08-04 vacuum pump
PCT/EP2007/057436 WO2008015105A1 (en) 2006-08-04 2007-07-18 Vacuum pump

Publications (1)

Publication Number Publication Date
US20100047095A1 true US20100047095A1 (en) 2010-02-25

Family

ID=38659353

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/376,186 Abandoned US20100047095A1 (en) 2006-08-04 2007-07-18 Vacuum pump

Country Status (9)

Country Link
US (1) US20100047095A1 (en)
EP (1) EP2059682A1 (en)
JP (1) JP5204773B2 (en)
KR (1) KR20090035740A (en)
CN (1) CN101495759A (en)
CA (1) CA2658744A1 (en)
DE (1) DE102006036493A1 (en)
TW (1) TW200823365A (en)
WO (1) WO2008015105A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160195098A1 (en) * 2013-08-30 2016-07-07 Edwards Japan Limited Vacuum pump
US11215187B2 (en) * 2016-10-21 2022-01-04 Edwards Japan Limited Vacuum pump, and waterproof structure and control apparatus applied to vacuum pump

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007012070U1 (en) * 2007-08-30 2009-01-08 Oerlikon Leybold Vacuum Gmbh Electric feedthrough of a vacuum pump
DE102008061435A1 (en) * 2008-12-10 2010-06-17 Pfeiffer Vacuum Gmbh Device connectable to a vacuum pump
DE102009031983A1 (en) * 2009-07-06 2011-01-13 Lti Drives Gmbh Electrical connection unit connectable to a vacuum pump
WO2013166612A1 (en) * 2012-05-11 2013-11-14 Oc Oerlikon Balzers Adapter for vacuum-insulated lines
EP3333429B1 (en) * 2016-12-09 2022-02-09 Pfeiffer Vacuum Gmbh Vacuum device
JP6883260B2 (en) * 2017-07-04 2021-06-09 株式会社オートネットワーク技術研究所 Circuit equipment
DE102023134748B4 (en) * 2023-12-12 2025-12-24 Schaeffler Technologies AG & Co. KG Control unit with embedded circuit board; system consisting of pump and control unit and manufacturing method for a control unit

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US2918016A (en) * 1956-09-24 1959-12-22 Swaby Mfg Company Submersible sump pump
US4128735A (en) * 1977-01-17 1978-12-05 Trw Inc. Attachment of electric cable to submergible pump motor heads
US4523899A (en) * 1982-12-15 1985-06-18 Ebara Corporation Submergible motor pump assembly
US4960931A (en) * 1988-05-02 1990-10-02 Warner-Lambert Company Gabapentin mohohydrate and a process for producing the same
US5061193A (en) * 1988-12-23 1991-10-29 Lucas Industries Public Limited Company Electrical connection arrangement and method of providing an electrical connection
US4961018A (en) * 1989-08-11 1990-10-02 Wayne/Scott Fetzer Company Enclosed pump motor and wiring thereof
US5592059A (en) * 1992-05-27 1997-01-07 General Electric Company System and methods for driving a blower with a motor
US5491370A (en) * 1994-01-28 1996-02-13 General Motors Corporation Integrated AC machine
US6022196A (en) * 1997-06-26 2000-02-08 Grundfos A/S Submersible motor unit
US6198183B1 (en) * 1998-04-18 2001-03-06 Daimlerchrysler Ag Integrated electric drive unit including an electric motor and an electronic control and monitoring module
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US20070132327A1 (en) * 2003-10-16 2007-06-14 Maurice Brunet Turbomolecular vacuum pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160195098A1 (en) * 2013-08-30 2016-07-07 Edwards Japan Limited Vacuum pump
US11512705B2 (en) * 2013-08-30 2022-11-29 Edwards Japan Limited Vacuum pump
US11215187B2 (en) * 2016-10-21 2022-01-04 Edwards Japan Limited Vacuum pump, and waterproof structure and control apparatus applied to vacuum pump

Also Published As

Publication number Publication date
DE102006036493A1 (en) 2008-02-21
JP5204773B2 (en) 2013-06-05
EP2059682A1 (en) 2009-05-20
TW200823365A (en) 2008-06-01
CN101495759A (en) 2009-07-29
JP2009545693A (en) 2009-12-24
KR20090035740A (en) 2009-04-10
WO2008015105A1 (en) 2008-02-07
CA2658744A1 (en) 2008-02-07

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