NL1014457C2 - Gesinterd oliehoudend lager en werkwijze voor het vervaardigen ervan en spilmotor voor informatie-apparatuur. - Google Patents
Gesinterd oliehoudend lager en werkwijze voor het vervaardigen ervan en spilmotor voor informatie-apparatuur. Download PDFInfo
- Publication number
- NL1014457C2 NL1014457C2 NL1014457A NL1014457A NL1014457C2 NL 1014457 C2 NL1014457 C2 NL 1014457C2 NL 1014457 A NL1014457 A NL 1014457A NL 1014457 A NL1014457 A NL 1014457A NL 1014457 C2 NL1014457 C2 NL 1014457C2
- Authority
- NL
- Netherlands
- Prior art keywords
- bearing
- sintered
- oil
- area
- sintered oil
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000003921 oil Substances 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000004519 grease Substances 0.000 claims abstract description 8
- 239000010687 lubricating oil Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 30
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 15
- 239000000314 lubricant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 7
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
- F16C33/104—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing in a porous body, e.g. oil impregnated sintered sleeve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
- F16C33/145—Special methods of manufacture; Running-in of sintered porous bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2204/00—Metallic materials; Alloys
- F16C2204/10—Alloys based on copper
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/20—Shaping by sintering pulverised material, e.g. powder metallurgy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2370/00—Apparatus relating to physics, e.g. instruments
- F16C2370/12—Hard disk drives or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S384/00—Bearings
- Y10S384/90—Cooling or heating
- Y10S384/902—Porous member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49639—Fluid bearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11046642A JP2000240653A (ja) | 1999-02-24 | 1999-02-24 | 焼結含油軸受とその製造方法及び情報機器用スピンドルモータ |
JP4664299 | 1999-02-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL1014457A1 NL1014457A1 (nl) | 2000-08-25 |
NL1014457C2 true NL1014457C2 (nl) | 2001-06-06 |
Family
ID=12752973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL1014457A NL1014457C2 (nl) | 1999-02-24 | 2000-02-21 | Gesinterd oliehoudend lager en werkwijze voor het vervaardigen ervan en spilmotor voor informatie-apparatuur. |
Country Status (3)
Country | Link |
---|---|
US (2) | US6357920B1 (ja) |
JP (1) | JP2000240653A (ja) |
NL (1) | NL1014457C2 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6513979B2 (en) * | 2000-08-22 | 2003-02-04 | Ntn Corporation | Hydrodynamic oil-impregnated sintered bearing unit |
JP4481475B2 (ja) * | 2000-11-02 | 2010-06-16 | 東北リコー株式会社 | 動圧型軸受ユニット |
JP2002247828A (ja) * | 2001-02-21 | 2002-08-30 | Canon Inc | スピンドルモータ |
KR100439584B1 (ko) * | 2002-01-28 | 2004-07-12 | 엘지이노텍 주식회사 | 스핀들 모터의 백 요크 결합 구조 |
KR100431416B1 (ko) * | 2002-08-16 | 2004-05-13 | 삼성전기주식회사 | 동압 베어링이 적용된 모터의 실링 구조 |
JP4573349B2 (ja) * | 2004-10-21 | 2010-11-04 | 日立粉末冶金株式会社 | 動圧軸受の製造方法 |
CN100389270C (zh) * | 2004-12-11 | 2008-05-21 | 鸿富锦精密工业(深圳)有限公司 | 流体轴承制造方法 |
US7235201B2 (en) * | 2004-12-20 | 2007-06-26 | Borgwarner Inc. | Split die and method for production of compacted powder metal parts |
CN102588428B (zh) * | 2005-01-05 | 2014-12-10 | Ntn株式会社 | 流体润滑轴承装置和具有其的电机 |
JP2007043887A (ja) * | 2005-07-06 | 2007-02-15 | Nippon Densan Corp | モータ及びディスク駆動装置 |
US8220153B2 (en) * | 2006-05-26 | 2012-07-17 | Hitachi Powdered Metals Co., Ltd. | Production method for complex bearing |
JP5384014B2 (ja) | 2008-02-21 | 2014-01-08 | Ntn株式会社 | 焼結軸受 |
KR101101643B1 (ko) * | 2010-04-15 | 2012-01-02 | 삼성전기주식회사 | 유체 동압 베어링 어셈블리, 유체 동압 베어링 어셈블리를 구비하는 모터 및 이 모터를 탑재하는 기록 디스크 구동장치 |
US20120014629A1 (en) * | 2010-07-16 | 2012-01-19 | Samsung Electro-Mechanics Co., Ltd | Porous hydrodynamic bearing |
JP6347929B2 (ja) * | 2013-09-24 | 2018-06-27 | Ntn株式会社 | 焼結金属軸受 |
JP6864459B2 (ja) * | 2016-10-18 | 2021-04-28 | 株式会社ダイヤメット | 焼結含油軸受およびその製造方法 |
US11027404B2 (en) * | 2018-07-19 | 2021-06-08 | Milwaukee Electric Tool Corporation | Lubricant-impregnated bushing for impact tool |
JP2021088765A (ja) * | 2021-01-19 | 2021-06-10 | 株式会社ダイヤメット | 焼結含油軸受およびその製造方法 |
JP2021088766A (ja) * | 2021-01-19 | 2021-06-10 | 株式会社ダイヤメット | 焼結含油軸受およびその製造方法 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6280310A (ja) * | 1985-09-30 | 1987-04-13 | Sankyo Seiki Mfg Co Ltd | 焼結含油軸受 |
JPH01242821A (ja) * | 1988-03-22 | 1989-09-27 | Hitachi Powdered Metals Co Ltd | 焼結含油軸受の製造方法 |
JPH028302A (ja) * | 1988-06-28 | 1990-01-11 | Isamu Kikuchi | 焼結軸受材の製造法 |
JPH0571539A (ja) * | 1991-04-22 | 1993-03-23 | Mitsubishi Materials Corp | 焼結含油軸受 |
JPH06207619A (ja) * | 1993-01-12 | 1994-07-26 | Sankyo Seiki Mfg Co Ltd | 焼結含油軸受 |
US5628569A (en) * | 1993-10-18 | 1997-05-13 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Fluid bearing unit and manufactured method thereof |
DE19809770A1 (de) * | 1997-03-06 | 1998-09-10 | Ntn Toyo Bearing Co Ltd | Hydrodynamisches, poröses, ölimprägniertes Lager |
JPH1137156A (ja) * | 1997-07-18 | 1999-02-09 | Ntn Corp | 動圧型多孔質含油軸受の製造方法 |
JPH1162969A (ja) * | 1997-08-25 | 1999-03-05 | Hitachi Powdered Metals Co Ltd | 焼結含油軸受およびその製造方法 |
JPH11236604A (ja) * | 1998-02-23 | 1999-08-31 | Ntn Corp | 焼結含油軸受およびその製造方法 |
JPH11264031A (ja) * | 1998-03-16 | 1999-09-28 | Sumitomo Electric Ind Ltd | 焼結金属摩擦部材およびその製造方法 |
Family Cites Families (19)
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US3445148A (en) * | 1967-06-08 | 1969-05-20 | Rotron Inc | Method of making porous bearings and products thereof |
US4353155A (en) * | 1980-06-25 | 1982-10-12 | Hillebrand Arthur N | Method for manufacturing composite powder metal parts |
JPS6077902A (ja) * | 1983-10-03 | 1985-05-02 | Hitachi Powdered Metals Co Ltd | 粉末成形方法およびその装置 |
JPS6077903A (ja) * | 1983-10-03 | 1985-05-02 | Hitachi Powdered Metals Co Ltd | 粉末成形方法およびその装置 |
JPH03107612A (ja) * | 1989-09-20 | 1991-05-08 | Sankyo Seiki Mfg Co Ltd | 焼結含油軸受 |
JP2686185B2 (ja) * | 1991-04-04 | 1997-12-08 | 三菱マテリアル株式会社 | 焼結含油軸受の製造方法 |
JP2771934B2 (ja) * | 1993-02-18 | 1998-07-02 | 株式会社三協精機製作所 | 軸受装置の製造方法 |
DE4419243A1 (de) * | 1994-06-01 | 1995-12-07 | Kempten Elektroschmelz Gmbh | Gleitwerkstoff aus porösem SiC mit trimodaler Porenzusammensetzung |
JPH08174292A (ja) * | 1994-12-28 | 1996-07-09 | Fuji Oozx Inc | 圧縮成型機の上パンチの小孔への粉体流入防止法 |
CN1072333C (zh) * | 1995-07-14 | 2001-10-03 | 株式会社Ntn | 轴承装置 |
US5746516A (en) * | 1995-08-11 | 1998-05-05 | Hitachi Powdered Metals Co., Ltd. | Porous bearing system having internal grooves and electric motor provided with the same |
JPH09143506A (ja) * | 1995-11-14 | 1997-06-03 | Mitsubishi Materials Corp | 粉末成形方法および粉末成形装置および粉末成形金型 |
TW287975B (en) * | 1995-11-16 | 1996-10-11 | Honda Motor Co Ltd | Method of and apparatus for manufacturing pressed powder body |
JPH09303398A (ja) * | 1996-05-08 | 1997-11-25 | Hitachi Ltd | 含油軸受ユニットおよび含浸軸受ユニットを備えたモータ |
JP2941218B2 (ja) * | 1996-06-25 | 1999-08-25 | 日本科学冶金株式会社 | 一体化焼結含油軸受の製造方法 |
JP3511553B2 (ja) * | 1996-08-02 | 2004-03-29 | 日立粉末冶金株式会社 | 焼結含油軸受の製造方法 |
US5941646A (en) * | 1996-12-25 | 1999-08-24 | Ntn Corporation | Hydrodynamic type porous oil-impregnated bearing and bearing device |
JPH11217601A (ja) * | 1998-01-30 | 1999-08-10 | Daihatsu Motor Co Ltd | 粉末成形装置 |
US6365094B1 (en) * | 2000-01-31 | 2002-04-02 | Stackpole Limited | Lubricated die |
-
1999
- 1999-02-24 JP JP11046642A patent/JP2000240653A/ja active Pending
-
2000
- 2000-02-16 US US09/504,718 patent/US6357920B1/en not_active Expired - Lifetime
- 2000-02-21 NL NL1014457A patent/NL1014457C2/nl not_active IP Right Cessation
-
2002
- 2002-01-08 US US10/038,661 patent/US6789320B2/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6280310A (ja) * | 1985-09-30 | 1987-04-13 | Sankyo Seiki Mfg Co Ltd | 焼結含油軸受 |
JPH01242821A (ja) * | 1988-03-22 | 1989-09-27 | Hitachi Powdered Metals Co Ltd | 焼結含油軸受の製造方法 |
JPH028302A (ja) * | 1988-06-28 | 1990-01-11 | Isamu Kikuchi | 焼結軸受材の製造法 |
JPH0571539A (ja) * | 1991-04-22 | 1993-03-23 | Mitsubishi Materials Corp | 焼結含油軸受 |
JPH06207619A (ja) * | 1993-01-12 | 1994-07-26 | Sankyo Seiki Mfg Co Ltd | 焼結含油軸受 |
US5628569A (en) * | 1993-10-18 | 1997-05-13 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Fluid bearing unit and manufactured method thereof |
DE19809770A1 (de) * | 1997-03-06 | 1998-09-10 | Ntn Toyo Bearing Co Ltd | Hydrodynamisches, poröses, ölimprägniertes Lager |
JPH1137156A (ja) * | 1997-07-18 | 1999-02-09 | Ntn Corp | 動圧型多孔質含油軸受の製造方法 |
JPH1162969A (ja) * | 1997-08-25 | 1999-03-05 | Hitachi Powdered Metals Co Ltd | 焼結含油軸受およびその製造方法 |
JPH11236604A (ja) * | 1998-02-23 | 1999-08-31 | Ntn Corp | 焼結含油軸受およびその製造方法 |
JPH11264031A (ja) * | 1998-03-16 | 1999-09-28 | Sumitomo Electric Ind Ltd | 焼結金属摩擦部材およびその製造方法 |
Non-Patent Citations (9)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 011, no. 281 (M - 624) 11 September 1987 (1987-09-11) * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 577 (M - 910) 20 December 1989 (1989-12-20) * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 140 (M - 0950) 16 March 1990 (1990-03-16) * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 392 (M - 1450) 22 July 1993 (1993-07-22) * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 569 (M - 1695) 31 October 1994 (1994-10-31) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 13 30 November 1999 (1999-11-30) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 14 22 December 1999 (1999-12-22) * |
Also Published As
Publication number | Publication date |
---|---|
US6789320B2 (en) | 2004-09-14 |
US20020085775A1 (en) | 2002-07-04 |
NL1014457A1 (nl) | 2000-08-25 |
US6357920B1 (en) | 2002-03-19 |
JP2000240653A (ja) | 2000-09-05 |
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