Jiami Pu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing balls for bearing and products thereby
- Patent number 6,119,347
- Issue date Sep 19, 2000
- NSK, Ltd.
- Kiyoshi Hirakawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing a cage of the ball bearing
- Patent number 5,640,769
- Issue date Jun 24, 1997
- NSK Ltd.
- Akira Suzuki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method for manufacturing balls for bearing and products thereby
- Patent number 5,603,576
- Issue date Feb 18, 1997
- NSK, Ltd.
- Kiyoshi Hirakawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Ball bearing and method for producing a cage of the ball bearing
- Patent number 5,401,105
- Issue date Mar 28, 1995
- NSK Ltd.
- Akira Suzuki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...