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Takashi Ota
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Miyagi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Reel lock mechanism of tape cassette and tape cassette
Patent number
7,199,976
Issue date
Apr 3, 2007
Sony Corporation
Hiroshi Fujii
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Information
Patent Grant
Reel lock mechanism of tape cassette, and tape cassette
Patent number
6,937,437
Issue date
Aug 30, 2005
Sony Corportion
Hiroshi Fujii
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Information
Patent Grant
Tape cassette having lid and slider overlapping portions
Patent number
6,556,378
Issue date
Apr 29, 2003
Sony Corporation
Takashi Ota
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Information
Patent Grant
Tape cassette and tape cassette fabricating method
Patent number
6,437,941
Issue date
Aug 20, 2002
Sony Corporation
Shuichi Ota
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Information
Patent Grant
Tape cassette receiving housing
Patent number
5,860,523
Issue date
Jan 19, 1999
Sony Corporation
Toshikazu Konno
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Information
Patent Grant
Tape cassette with reduced wear of positioning holes
Patent number
5,526,209
Issue date
Jun 11, 1996
Sony Corporation
Takashi Ota
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Information
Patent Grant
Tape cassette with erasure preventing plug having a head portion wi...
Patent number
5,343,349
Issue date
Aug 30, 1994
Sony Corporation
Takashi Ota
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Information
Patent Grant
Magnetic tape cassette having reel locks controlled by an optical t...
Patent number
4,918,558
Issue date
Apr 17, 1990
Sony Corporation
Tadao Igarashi
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Patents Applications
last 30 patents
Information
Patent Application
Reel lock mechanism of tape cassette and tape cassette
Publication number
20050139707
Publication date
Jun 30, 2005
Sony Corporation
Hiroshi Fujii
G11 - INFORMATION STORAGE
Information
Patent Application
Reel lock mechanism of tape cassette, and tape cassette
Publication number
20040004144
Publication date
Jan 8, 2004
Hiroshi Fujii
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Information
Patent Application
Magnetic recording medium and magnetic recording/reproducing device
Publication number
20020105752
Publication date
Aug 8, 2002
Yutaka Soda
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