Hiroyuki Nojima

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of forming annular grooves in a ball polishing apparatus
- Patent number 6,223,635
- Issue date May 1, 2001
- NSK Ltd.
- Katsuhisa Tonooka
- B24 - GRINDING POLISHING
Information Patent Grant
Sphere grinding apparatus
- Patent number 6,110,023
- Issue date Aug 29, 2000
- NSK Ltd.
- Masami Shinomoto
- B24 - GRINDING POLISHING
Information Patent Grant
Sphere polisher
- Patent number 5,921,851
- Issue date Jul 13, 1999
- NSK Ltd.
- Tomita Suzuki
- B24 - GRINDING POLISHING
Information Patent Grant
Sphere polishing machine
- Patent number 5,913,717
- Issue date Jun 22, 1999
- NSK Ltd.
- Katsuhisa Tonooka
- B24 - GRINDING POLISHING
Information Patent Grant
Ball polishing method and apparatus, and annular groove forming method
- Patent number 5,906,535
- Issue date May 25, 1999
- NSK Ltd.
- Katsuhisa Tonooka
- B24 - GRINDING POLISHING