Ryoji Yoneyama

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Chiba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oil injecting apparatus
- Patent number 7,191,806
- Issue date Mar 20, 2007
- Seiko Instruments Inc.
- Ryoji Yoneyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydraulic bearing motor
- Patent number 6,575,633
- Issue date Jun 10, 2003
- Seiko Instruments Inc.
- Hiromitsu Goto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Hydraulic dynamic pressure bearing motor
- Patent number 6,552,456
- Issue date Apr 22, 2003
- Seiko Instruments Inc.
- Hiromitsu Goto
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for lubricating a fluid dynamic pressure bearing
- Patent number 6,371,649
- Issue date Apr 16, 2002
- Seiko Instruments Inc.
- Naoki Kawawada
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Oil injecting apparatus
- Publication number 20050173196
- Publication date Aug 11, 2005
- Ryoji Yoneyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Spindle motor
- Publication number 20020096962
- Publication date Jul 25, 2002
- Ryoji Yoneyama
- G11 - INFORMATION STORAGE
Information Patent Application
Hydraulic dynamic pressure bearing motor
- Publication number 20020093261
- Publication date Jul 18, 2002
- Hiromitsu Goto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydraulic bearing motor
- Publication number 20020081045
- Publication date Jun 27, 2002
- Hiromitsu Goto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...