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Kenji Kawakami
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Cleaning device for magnetic tape recording and/or reproducing appa...
Patent number
5,835,317
Issue date
Nov 10, 1998
Sony Corporation
Kenji Kawakami
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Information
Patent Grant
Magnetic tape cassette with tape protective closure and lock mechanism
Patent number
RE34927
Issue date
May 2, 1995
Sony Corporation
Hiroshi Meguro
360 - Dynamic magnetic information storage or retrieval
Information
Patent Grant
Recording and/or reproducing apparatus with rotary head for magneti...
Patent number
4,961,120
Issue date
Oct 2, 1990
Sony Corporation
Tatsuya Mototake
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Information
Patent Grant
Magnetic tape cassette with tape protective closure and lock mechanism
Patent number
4,881,137
Issue date
Nov 14, 1989
Sony Corporation
Hiroshi Meguro
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Information
Patent Grant
Magnetic tape cassette with tape protective closure and lock mechanism
Patent number
4,843,510
Issue date
Jun 27, 1989
Sony Corporation
Hiroshi Meguro
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Information
Patent Grant
Tape cassette with groove engageable with loading hook
Patent number
4,816,953
Issue date
Mar 28, 1989
Sony Corporation
Masao Ohyama
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Information
Patent Grant
Guide arrangements for maintaining magnetic tape in proper position...
Patent number
4,740,849
Issue date
Apr 26, 1988
Sony Corporation
Takuya Kaeriyama
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Information
Patent Grant
Tape cassette with concave engagement portion and player with hook...
Patent number
4,694,360
Issue date
Sep 15, 1987
Sony Corporation
Masao Ohyama
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Information
Patent Grant
Magnetic tape cassette having integrated optical elements
Patent number
4,644,433
Issue date
Feb 17, 1987
Sony Corporation
Kenichi Horikawa
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Information
Patent Grant
Magnetic tape cassette
Patent number
4,625,253
Issue date
Nov 25, 1986
Sony Corporation
Kenji Kawakami
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Information
Patent Grant
Magnetic tape cassette
Patent number
4,572,461
Issue date
Feb 25, 1986
Sony Corporation
Kenichi Horikawa
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Patents Applications
last 30 patents
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Patent Application
Disk clamper, recording and/or playback apparatus and method for lo...
Publication number
20030053402
Publication date
Mar 20, 2003
SONY CORPORATION
Akihisa Inatani
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