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Takahisa Ishida
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Hatano, JP
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last 30 patents
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Patent Grant
Polishing apparatus with abrasive tape, polishing method using abra...
Patent number
6,893,329
Issue date
May 17, 2005
Hitachi High-Tech Electronics Engineering Co., Ltd.
Fujio Tajima
B24 - GRINDING POLISHING
Information
Patent Grant
Apparatus for texturing magnetic data recording disc surfaces
Patent number
5,952,014
Issue date
Sep 14, 1999
Hitachi Electronics Engineering Co., Ltd.
Kenya Wada
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Disk texturing apparatus
Patent number
5,885,143
Issue date
Mar 23, 1999
Hitachi Electronics Engineering Co., Ltd.
Hisayoshi Ichikawa
B24 - GRINDING POLISHING
Information
Patent Grant
Disk washing apparatus
Patent number
5,092,011
Issue date
Mar 3, 1992
Hitachi Electronics Engineering Co., Ltd.
Kazuhiko Gommori
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Polishing apparatus with abrasive tape, polishing method using abra...
Publication number
20040198181
Publication date
Oct 7, 2004
Hitachi Electronics Engineering Co. Ltd.
Fujio Tajima
B24 - GRINDING POLISHING