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Eijiro Tazawa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Data production method and apparatus
Patent number
7,751,587
Issue date
Jul 6, 2010
Hitachi, Ltd.
Osamu Kawamae
G11 - INFORMATION STORAGE
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Patent Grant
Rotary magnetic head cylinder device for reduced vibration and prop...
Patent number
5,661,622
Issue date
Aug 26, 1997
Hitachi, Ltd.
Masanori Kochi
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Data production method and apparatus
Publication number
20070198842
Publication date
Aug 23, 2007
Osamu Kawamae
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Optical disc apparatus and disc management information acquisition...
Publication number
20070189135
Publication date
Aug 16, 2007
Hitachi, Ltd
Eijiro Tazawa
G11 - INFORMATION STORAGE