JP5636181B2 - ディスク駆動装置 - Google Patents
ディスク駆動装置 Download PDFInfo
- Publication number
- JP5636181B2 JP5636181B2 JP2009211263A JP2009211263A JP5636181B2 JP 5636181 B2 JP5636181 B2 JP 5636181B2 JP 2009211263 A JP2009211263 A JP 2009211263A JP 2009211263 A JP2009211263 A JP 2009211263A JP 5636181 B2 JP5636181 B2 JP 5636181B2
- Authority
- JP
- Japan
- Prior art keywords
- dynamic pressure
- radial dynamic
- peripheral surface
- shaft
- pressure generating
- 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.)
- Expired - Fee Related
Links
Images
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
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
- F16C33/741—Sealings of sliding-contact bearings by means of a fluid
- F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
- F16C33/745—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by capillary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
- F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
- F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
-
- 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
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/107—Grooves for generating pressure
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
- G11B19/2036—Motors characterized by fluid-dynamic bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/108—Piezoelectric elements
-
- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
-
- 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
- Y10T82/00—Turning
- Y10T82/10—Process of turning
-
- 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
- Y10T83/00—Cutting
- Y10T83/04—Processes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Rotational Drive Of Disk (AREA)
- Sliding-Contact Bearings (AREA)
Description
本実施形態は、ハードディスクドライブ装置(単にHDD、ディスク駆動装置という場合もある)に搭載されて記録ディスクを駆動するブラシレスモータや、CD(Compact Disc)装置、DVD(Digital Versatile Disc)装置等の光学ディスク記録再生装置(単に、ディスク駆動装置ともいう)に搭載されるディスク駆動モータ等に用いられる。
図4に示すように、スラスト部材26は、ハウジング平坦部14dと周状張出部16bの軸方向隙間においてスリーブ16を環囲する内周部26eaと、内周部26eaから半径方向外向きに延在する部分であって上端面26ecが下向に窪む外周部26ebと、を有している。また、第1円筒部20bは、スラスト部材26の外周部が固着される内壁の部分20bbと、内壁の部分20bbの上側に設けられ内壁の部分20bbの内周面より小径の内周面を有する内周小径部20baと、を含み、内周小径部20baは周状張出部16bを環囲すると共に、軸方向において内周部26eaの上側の端面26edを越えて下側に延在し外周部26ebと対面する端面20bcを有している。
Claims (1)
- 記録ディスクを載置可能なハブと、前記ハブを支持する流体動圧軸受ユニットとを備えたディスク駆動装置であって、
前記流体動圧軸受ユニットは、
軸方向で第1方向から第2方向に延伸するシャフトと、
前記シャフトの前記第2方向側の一部を収容するとともに、前記シャフトと相対的な回転が可能な部材であって、前記シャフトを環囲するスリーブ円筒部と、前記スリーブ円筒部の前記第1方向の端部において外径方向に延在する周状張出部と、を含むスリーブと、
前記スリーブを環囲する円筒部と、前記円筒部の前記第1方向の端部に設けられアキシャル方向の面を有するハウジング平坦部とを含むハウジングと、
気液界面から前記スリーブと前記シャフトの隙間に亘って充填される潤滑剤と、
スラスト動圧溝が形成される部分であって前記ハウジング平坦部と前記周状張出部の軸方向隙間において前記スリーブを環囲する内周部と、前記内周部から半径方向外向きに延在する部分であって前記第1方向側の端面が軸方向で前記第2方向に窪む外周部と、を有するフランジ部と、前記フランジ部の前記外周部から軸方向に一体的に延伸して前記ハウジングを環囲し前記フランジ部のアキシャル方向長さより大きなアキシャル方向長さを有し、前記ハウジングを環囲する内周面に前記気液界面が位置する下垂部と、を含み前記シャフトと一体的に回転するスラスト部材と、
前記スリーブの内周面と前記シャフトの外周面との間に形成されるラジアル空間部と、
前記ラジアル空間部において前記スリーブの内周面の少なくとも一部と前記シャフトの外周面との間に設けられ、軸方向に分離された第1ラジアル動圧発生部と第2ラジアル動圧発生部とを有するラジアル動圧発生部と、
を備え、
前記第1ラジアル動圧発生部と前記第2ラジアル動圧発生部は、回転方向に沿って繰り返し配列される複数の縞模様溝部で構成され、
前記複数の縞模様溝部の各縞模様溝部は、両側の端部と当該両側の端部に挟まれた中間部で形成され、前記両側の端部と前記中間部とは前記シャフトと前記スリーブの相対的な回転により前記中間部に前記潤滑剤が集まるように配置され、
前記ハブは、前記シャフトが固着される中心孔と、前記中心孔の半径方向外側に設けられるハブ円筒部と、を有し、
前記ハブ円筒部は、前記スラスト部材の外周面が固着される内壁の部分と、前記内壁の部分の前記第1方向側に設けられ前記内壁の部分の内周面より小径の内周面を有する内周小径部と、を含み、
前記内周小径部は、前記周状張出部を環囲すると共に、軸方向において前記内周部の前記第1方向側の端面を越えて前記第2方向側に延在し前記外周部と対面する端面を有することを特徴とするディスク駆動装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009211263A JP5636181B2 (ja) | 2009-09-14 | 2009-09-14 | ディスク駆動装置 |
US12/842,877 US20110064341A1 (en) | 2009-09-14 | 2010-07-23 | Disk drive device capable of being improved in anti-vibration characteristic |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009211263A JP5636181B2 (ja) | 2009-09-14 | 2009-09-14 | ディスク駆動装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014182883A Division JP2015014370A (ja) | 2014-09-09 | 2014-09-09 | ディスク駆動装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011058595A JP2011058595A (ja) | 2011-03-24 |
JP2011058595A5 JP2011058595A5 (ja) | 2012-10-11 |
JP5636181B2 true JP5636181B2 (ja) | 2014-12-03 |
Family
ID=43730611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009211263A Expired - Fee Related JP5636181B2 (ja) | 2009-09-14 | 2009-09-14 | ディスク駆動装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20110064341A1 (ja) |
JP (1) | JP5636181B2 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013030242A (ja) | 2011-07-28 | 2013-02-07 | Alphana Technology Co Ltd | 回転機器 |
KR20130035390A (ko) * | 2011-09-30 | 2013-04-09 | 삼성전기주식회사 | Hdd 모터용 실링재 조성물 및 이를 이용한 hdd용 모터 |
KR101250695B1 (ko) * | 2011-09-30 | 2013-04-03 | 삼성전기주식회사 | 베어링 어셈블리 및 이를 포함하는 스핀들 모터 |
JP2013133865A (ja) * | 2011-12-26 | 2013-07-08 | Samsung Electro-Mechanics Japan Advanced Technology Co Ltd | 流体動圧軸受ユニットおよび回転機器 |
JP2013145021A (ja) * | 2012-01-16 | 2013-07-25 | Samsung Electro-Mechanics Japan Advanced Technology Co Ltd | 回転機器 |
KR101514498B1 (ko) * | 2012-02-27 | 2015-04-22 | 삼성전기주식회사 | 회전 부재 어셈블리 및 이를 포함하는 스핀들 모터 |
JP2014005934A (ja) * | 2012-05-30 | 2014-01-16 | Nippon Densan Corp | 軸受機構、モータおよびディスク駆動装置 |
JP2014108016A (ja) | 2012-11-29 | 2014-06-09 | Samsung Electromechanics Japan Advanced Technology Co Ltd | 回転機器 |
KR101444554B1 (ko) * | 2012-12-26 | 2014-09-25 | 삼성전기주식회사 | 유체 동압 베어링 어셈블리 및 이를 구비하는 스핀들 모터 |
US8773816B1 (en) * | 2013-03-13 | 2014-07-08 | Nidec Corporation | Spindle motor with hydrodynamic bearing structure having capillary seal and disk drive apparatus including same |
JP2014145405A (ja) * | 2013-01-29 | 2014-08-14 | Samsung Electromechanics Japan Advanced Technology Co Ltd | ディスク駆動装置 |
JP2014234841A (ja) * | 2013-05-31 | 2014-12-15 | サムスン電機ジャパンアドバンスドテクノロジー株式会社 | 回転機器 |
DE102014003474A1 (de) * | 2014-03-13 | 2015-09-17 | Minebea Co., Ltd. | Spindelmotor |
JP6466105B2 (ja) * | 2014-09-01 | 2019-02-06 | Ntn株式会社 | 流体動圧軸受装置とこれに用いられる軸受部材及び軸部材 |
EP3239543B1 (en) * | 2014-12-22 | 2022-10-05 | Eagle Industry Co., Ltd. | Plain bearing and pump |
CN111031457A (zh) * | 2019-07-30 | 2020-04-17 | 紘立企業有限公司 | 一种硅铁合金材料的扬声器 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10141358A (ja) * | 1996-11-08 | 1998-05-26 | Sankyo Seiki Mfg Co Ltd | 動圧軸受装置及びその製造方法 |
JPH11201144A (ja) * | 1997-11-14 | 1999-07-27 | Canon Inc | 動圧軸受装置および光偏向装置 |
JP3625637B2 (ja) * | 1998-01-29 | 2005-03-02 | Ntn株式会社 | 動圧型軸受の製造方法 |
JP4599735B2 (ja) * | 2001-03-22 | 2010-12-15 | 日本電産株式会社 | 流体軸受部品 |
JP2002310144A (ja) * | 2001-04-11 | 2002-10-23 | Daido Steel Co Ltd | 軸受機構、軸受機構を用いた駆動モータ並びに駆動モータを用いたハードディスク駆動機構及びポリゴンミラー駆動機構 |
JP2002310145A (ja) * | 2001-04-11 | 2002-10-23 | Daido Steel Co Ltd | 軸受機構、それを用いたハードディスク駆動機構及びポリゴンミラー駆動機構 |
JP2004125097A (ja) * | 2002-10-04 | 2004-04-22 | Matsushita Electric Ind Co Ltd | ラジアル軸受部品の製造方法 |
JP4302413B2 (ja) * | 2003-03-10 | 2009-07-29 | 日本電産株式会社 | 流体動圧軸受、スピンドルモータ及び記録ディスクドライブ装置 |
US7001074B2 (en) * | 2003-04-21 | 2006-02-21 | Seagate Technology Llc | High pressure barrier to oil loss by diffusion |
TWI273187B (en) * | 2005-01-28 | 2007-02-11 | Foxconn Tech Co Ltd | Fluid dynamic bearing |
JP4511403B2 (ja) * | 2005-03-30 | 2010-07-28 | アルファナテクノロジー株式会社 | スピンドルモータ |
JP4571593B2 (ja) * | 2006-01-30 | 2010-10-27 | アルファナテクノロジー株式会社 | モータ |
JP2007333004A (ja) * | 2006-06-12 | 2007-12-27 | Nippon Densan Corp | 動圧流体軸受装置、スピンドルモータ及びこのスピンドルモータを備えた記録ディスク駆動装置 |
JP2007333115A (ja) * | 2006-06-15 | 2007-12-27 | Matsushita Electric Ind Co Ltd | 動圧流体軸受装置およびこれを備えたモータ、記録再生装置 |
KR100899319B1 (ko) * | 2006-09-07 | 2009-05-27 | 알파나 테크놀로지 가부시키가이샤 | 모터 및 이 모터를 구비한 디스크 구동장치 |
US7973910B2 (en) * | 2006-11-17 | 2011-07-05 | Nikon Corporation | Stage apparatus and exposure apparatus |
-
2009
- 2009-09-14 JP JP2009211263A patent/JP5636181B2/ja not_active Expired - Fee Related
-
2010
- 2010-07-23 US US12/842,877 patent/US20110064341A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2011058595A (ja) | 2011-03-24 |
US20110064341A1 (en) | 2011-03-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5636181B2 (ja) | ディスク駆動装置 | |
JP5674184B2 (ja) | ディスク駆動装置 | |
JP5519314B2 (ja) | 回転機器 | |
US7293917B2 (en) | Spindle motor having hydrodynamic pressure bearing | |
JP5718090B2 (ja) | 回転機器 | |
JP4567476B2 (ja) | モータ | |
US7661882B2 (en) | Fluid dynamic pressure bearing device, spindle motor provided with the fluid dynamic pressure bearing device, and recording disk drive device | |
JP5553621B2 (ja) | ディスク駆動装置 | |
JP2015043680A (ja) | スピンドルモータおよびディスク駆動装置 | |
JP2006153269A (ja) | 動圧軸受装置 | |
JP5342959B2 (ja) | ディスク駆動装置 | |
JP2006300245A (ja) | 動圧流体軸受装置 | |
JP5455835B2 (ja) | 流体動圧軸受用回転体および流体動圧軸受用回転体の製造方法 | |
JP2012175838A (ja) | 回転機器 | |
JP2012055151A (ja) | モータ | |
JP2015014370A (ja) | ディスク駆動装置 | |
JP5306086B2 (ja) | ディスク駆動装置 | |
JP4861441B2 (ja) | ディスク駆動装置 | |
JP2013172569A (ja) | 回転機器 | |
JP2009024771A (ja) | 軸受ユニット、およびこの軸受ユニットを搭載したモータ並びにディスク駆動装置 | |
JP2014187871A (ja) | ディスク駆動装置 | |
JP2010175046A (ja) | ディスク駆動装置 | |
US8946953B2 (en) | Base assembly for motor and spindle motor including the same | |
JP2009019648A (ja) | 動圧流体軸受装置およびそれを備えたスピンドルモータ、ディスク駆動装置 | |
JP5729789B2 (ja) | 流体動圧軸受 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120828 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120828 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20120828 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130326 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130328 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130411 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20131011 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131030 |
|
A911 | Transfer of reconsideration by examiner before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20131211 |
|
A912 | Removal of reconsideration by examiner before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20140221 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140909 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20141020 |
|
LAPS | Cancellation because of no payment of annual fees |