Hirofumi KOJIMA

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dynamic fluid pressure bearing, spindle motor, disk drive apparatus...
- Patent number 8,215,842
- Issue date Jul 10, 2012
- Nidec Corporation
- Tetsuya Maruyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fluid dynamic bearing mechanism including communicating channel, sp...
- Patent number 8,169,738
- Issue date May 1, 2012
- Nidec Corporation
- Atsushi Yawata
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
FLUID DYNAMIC BEARING MECHANISM INCLUDING COMMUNICATING CHANNEL, SP...
- Publication number 20120092788
- Publication date Apr 19, 2012
- NIDEC CORPORATION
- Atsushi YAWATA
- G11 - INFORMATION STORAGE
Information Patent Application
DYNAMIC FLUID PRESSURE BEARING, SPINDLE MOTOR, DISK DRIVE APPARATUS...
- Publication number 20090196540
- Publication date Aug 6, 2009
- NIDEC CORPORATION
- Tetsuya MARUYAMA
- G11 - INFORMATION STORAGE