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Hirokimi Iwata
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Ibaragi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Disc cartridge with slidable shutter
Patent number
5,991,129
Issue date
Nov 23, 1999
Sony Corporation
Hirokimi Iwata
G11 - INFORMATION STORAGE
Information
Patent Grant
Compact disk drive arrangement with one disk mounted on top of another
Patent number
5,524,104
Issue date
Jun 4, 1996
Sony Corporation
Hirokimi Iwata
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk cartridge for exchangeably accommodating a disk-shaped recordi...
Patent number
5,293,293
Issue date
Mar 8, 1994
Sony Corporation
Hirokimi Iwata
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk cartridge
Patent number
5,150,354
Issue date
Sep 22, 1992
Sony Corporation
Hirokimi Iwata
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage case having a write/protect assembly
Patent number
5,041,923
Issue date
Aug 20, 1991
Sony Corporation
Hirokimi Iwata
G11 - INFORMATION STORAGE
Information
Patent Grant
Ejecting mechanism of disk cartridges
Patent number
4,945,433
Issue date
Jul 31, 1990
Sony Corporation
Masayuki Suzuki
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording/reproducing apparatus for a disk cassette
Patent number
4,918,553
Issue date
Apr 17, 1990
Sony Coporation
Masayuki Suzuki
G11 - INFORMATION STORAGE