JP3961332B2 - スピンドルモータ - Google Patents

スピンドルモータ Download PDF

Info

Publication number
JP3961332B2
JP3961332B2 JP2002099629A JP2002099629A JP3961332B2 JP 3961332 B2 JP3961332 B2 JP 3961332B2 JP 2002099629 A JP2002099629 A JP 2002099629A JP 2002099629 A JP2002099629 A JP 2002099629A JP 3961332 B2 JP3961332 B2 JP 3961332B2
Authority
JP
Japan
Prior art keywords
rotating shaft
flange
diameter portion
dynamic pressure
sleeve
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
Application number
JP2002099629A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003299305A (ja
JP2003299305A5 (enExample
Inventor
敏光 堀内
アンドレアス クール
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.)
Minebea Co Ltd
Original Assignee
Minebea Co Ltd
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 Minebea Co Ltd filed Critical Minebea Co Ltd
Priority to JP2002099629A priority Critical patent/JP3961332B2/ja
Priority to US10/385,266 priority patent/US6998745B2/en
Priority to EP03251460A priority patent/EP1345308A3/en
Publication of JP2003299305A publication Critical patent/JP2003299305A/ja
Publication of JP2003299305A5 publication Critical patent/JP2003299305A5/ja
Application granted granted Critical
Publication of JP3961332B2 publication Critical patent/JP3961332B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Sliding-Contact Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
JP2002099629A 2002-03-12 2002-04-02 スピンドルモータ Expired - Fee Related JP3961332B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2002099629A JP3961332B2 (ja) 2002-04-02 2002-04-02 スピンドルモータ
US10/385,266 US6998745B2 (en) 2002-03-12 2003-03-10 Dynamo-electric machine having a rotor with first and second axially or rotationally displacable field magnets
EP03251460A EP1345308A3 (en) 2002-03-12 2003-03-11 Dynamic pressure bearing for information storage device spindle motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002099629A JP3961332B2 (ja) 2002-04-02 2002-04-02 スピンドルモータ

Publications (3)

Publication Number Publication Date
JP2003299305A JP2003299305A (ja) 2003-10-17
JP2003299305A5 JP2003299305A5 (enExample) 2005-09-15
JP3961332B2 true JP3961332B2 (ja) 2007-08-22

Family

ID=29388198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002099629A Expired - Fee Related JP3961332B2 (ja) 2002-03-12 2002-04-02 スピンドルモータ

Country Status (1)

Country Link
JP (1) JP3961332B2 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005155911A (ja) * 2003-11-04 2005-06-16 Minebea Co Ltd 流体軸受装置および該流体軸受装置を備えたスピンドルモータ、記録ディスク駆動装置

Also Published As

Publication number Publication date
JP2003299305A (ja) 2003-10-17

Similar Documents

Publication Publication Date Title
US6375357B2 (en) Spindle motor
US6563243B2 (en) Spindle motor
US20060087184A1 (en) Brushless motor and method of manufacturing the same
JP3939987B2 (ja) スピンドルモータ
JP2000291648A (ja) 動圧型軸受ユニット
KR20050113123A (ko) 코어 장착 모터
KR20020016412A (ko) 유체동압 베어링 모터
JP3961332B2 (ja) スピンドルモータ
JP4567476B2 (ja) モータ
US20030184175A1 (en) Spindle motor and information storage device having dynamic pressure generating areas
JP3804565B2 (ja) スピンドルモータ
US6639336B2 (en) Spindle motor and manufacturing method thereof
JP2001317545A (ja) 動圧軸受装置およびその製造方法
JP4661014B2 (ja) 動圧軸受装置および当該動圧軸受装置を備えたスピンドルモータ
JP3885399B2 (ja) スピンドルモータ
JP2588899Y2 (ja) 軸受装置
JP3578810B2 (ja) スピンドルモータ
US6945696B2 (en) Hydrodynamic thrust bearing
JP2014207037A (ja) 回転機器
JPH07296502A (ja) スピンドルモータ用シャフト及びその製造方法並びにこれを用いたスピンドルモータ
JP2001041246A (ja) 動圧軸受モータ用シャフトのスラスト軸受の製造方法
JP2007020241A (ja) 小型モータ
JP2003164128A (ja) 回転駆動装置及びそれを用いた記録装置
JP3712176B2 (ja) スピンドルモータ
JP3877115B2 (ja) スピンドルモータ

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050401

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050401

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070129

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070201

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070326

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070501

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070516

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110525

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110525

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120525

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130525

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140525

Year of fee payment: 7

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees