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Toshihiko Ishida

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  • Nagano, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cleaning disc cartridge
    • Patent number 5,966,360
    • Issue date Oct 12, 1999
    • TDK Corporation
    • Yukio Miyazaki
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disk
    • Patent number 5,340,698
    • Issue date Aug 23, 1994
    • TDK Corporation
    • Hideki Hirata
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Disc molding apparatus
    • Patent number 5,316,466
    • Issue date May 31, 1994
    • TDK Corporation
    • Toshifumi Tanaka
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Optical disk
    • Patent number 5,219,708
    • Issue date Jun 15, 1993
    • TDK Corporation
    • Hideki Hirata
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Polishing of the rear surface of a stamper for optical disk reprodu...
    • Patent number 5,209,027
    • Issue date May 11, 1993
    • TDK Corporation
    • Toshihiko Ishida
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Molds having wear resistant release coatings
    • Patent number 5,112,025
    • Issue date May 12, 1992
    • TDK Corporation
    • Masatoshi Nakayama
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Disc molding apparatus
    • Patent number 5,092,758
    • Issue date Mar 3, 1992
    • TDK Corporation
    • Toshifumi Tanaka
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Hub for a disk type recording medium
    • Patent number 5,057,960
    • Issue date Oct 15, 1991
    • TDK Corporation
    • Haruo Shiba
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Hub for a disk type recording medium
    • Patent number 5,010,435
    • Issue date Apr 23, 1991
    • TDK Corporation
    • Haruo Shiba
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Disc cartridge
    • Patent number 4,837,651
    • Issue date Jun 6, 1989
    • TDK Corporation
    • Kimio Tanaka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    A Shaft having a groove for a video tape cartridge and metallic mol...
    • Patent number 4,779,157
    • Issue date Oct 18, 1988
    • TDK Corporation (Representative Yutaka Otoshi)
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Mold
    • Patent number 4,726,758
    • Issue date Feb 23, 1988
    • TDK Corporation
    • Masaoki Sekine
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Molded magnetic tape cassette case having improved gate mark location
    • Patent number 4,646,916
    • Issue date Mar 3, 1987
    • TDK Corporation
    • Toshihiko Ishida
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Magnetic tape cassette casing
    • Patent number 4,546,936
    • Issue date Oct 15, 1985
    • TDK Corporation
    • Masatoshi Okamura
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Hub of a tape cassette
    • Patent number 4,511,099
    • Issue date Apr 16, 1985
    • TDK Corporation
    • Eiichi Nunokawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic tape cassette
    • Patent number 4,466,036
    • Issue date Aug 14, 1984
    • TDK Electronics Co., Ltd.
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Protective sheet for cassette holding magnetic recording tape
    • Patent number 4,404,245
    • Issue date Sep 13, 1983
    • TDK Electronics Co., Ltd.
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Lubricant sheet for magnetic tape cassette
    • Patent number 4,376,519
    • Issue date Mar 15, 1983
    • TDK Electronics Co., Ltd.
    • Toshihiko Ishida
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Magnetic tape cassette
    • Patent number 4,349,166
    • Issue date Sep 14, 1982
    • TDK Electronics Co., Ltd.
    • Kimio Tanaka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Case for holding magnetic tape cassette
    • Patent number 4,347,933
    • Issue date Sep 7, 1982
    • TDK Electronics Co., Ltd.
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tape cassette
    • Patent number 4,333,620
    • Issue date Jun 8, 1982
    • TDK Electronics Co., Ltd.
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Pad assembly for use in a magnetic tape cassette
    • Patent number 4,314,299
    • Issue date Feb 2, 1982
    • TDK Electronics Co., Inc.
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic tape cassette
    • Patent number 4,289,285
    • Issue date Sep 15, 1981
    • TDK Electronics Co. Ltd.
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Pressure pad and shielding plate for a tape cassette
    • Patent number 4,257,077
    • Issue date Mar 17, 1981
    • TDK Electronics Co., Ltd.
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic tape cassette
    • Patent number 4,254,923
    • Issue date Mar 10, 1981
    • TDK Electronics Company Limited
    • Toshihiko Ishida
    • G11 - INFORMATION STORAGE