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Yamato Samitsu
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Polishing apparatus and method with constant polishing pressure
Patent number
6,652,354
Issue date
Nov 25, 2003
NEC Corporation
Yoshihiro Hayashi
B24 - GRINDING POLISHING
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Patent Grant
Polishing apparatus and method with constant polishing pressure
Patent number
6,270,392
Issue date
Aug 7, 2001
NEC Corporation
Yoshihiro Hayashi
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
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Patent Application
Polishing apparatus and method with constant polishing pressure
Publication number
20020037680
Publication date
Mar 28, 2002
NEC Corporation
Yoshihiro Hayashi
B24 - GRINDING POLISHING