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Takeo Hayakawa
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Kanagawa, JP
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last 30 patents
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Patent Grant
Magnetic disc storage unit for electronic computer
Patent number
D335285
Issue date
May 4, 1993
Hitachi, Ltd.
Toshiyuki Utsuki
D14 - Recording, communication, or information retrieval equipment
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Patent Grant
Disk apparatus having an improved cooling structure
Patent number
5,173,819
Issue date
Dec 22, 1992
Hitachi, Ltd.
Tsuyoshi Takahashi
G11 - INFORMATION STORAGE