Yoko Hasegawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for polishing workpiece
- Patent number 6,350,346
- Issue date Feb 26, 2002
- Ebara Corporation
- Masamichi Nakashiba
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus for and method of polishing workpiece
- Patent number 5,916,412
- Issue date Jun 29, 1999
- Ebara Corporation
- Masamichi Nakashiba
- B24 - GRINDING POLISHING