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Kenichi Horikawa
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Tokyo, JP
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last 30 patents
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
Magnetic tape cassette with tape protective closure and lock mechanism
Patent number
4,881,137
Issue date
Nov 14, 1989
Sony Corporation
Hiroshi Meguro
G11 - INFORMATION STORAGE
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
G11 - INFORMATION STORAGE
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
G11 - INFORMATION STORAGE
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
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape cassette having integrated optical elements
Patent number
4,644,433
Issue date
Feb 17, 1987
Sony Corporation
Kenichi Horikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape cassette
Patent number
4,572,461
Issue date
Feb 25, 1986
Sony Corporation
Kenichi Horikawa
G11 - INFORMATION STORAGE