TREA

Katsuya Masuda

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Printing head having a armature backstop
    • Patent number 5,524,991
    • Issue date Jun 11, 1996
    • Citizen Watch Co., Ltd.
    • Makoto Yasunaga
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printing head having backstop structure
    • Patent number 5,375,935
    • Issue date Dec 27, 1994
    • Citizen Watch Co., Ltd.
    • Makoto Yasunaga
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printing head using staggered arrangement needles
    • Patent number 5,133,613
    • Issue date Jul 28, 1992
    • Citizen Watch Co., Ltd.
    • Tsutomu Ikehata
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print head
    • Patent number 5,102,245
    • Issue date Apr 7, 1992
    • Citizen Watch Co., Ltd.
    • Tsutomu Ikehata
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print head with tapered conical return spring
    • Patent number 5,039,236
    • Issue date Aug 13, 1991
    • Citizen Watch Co., Ltd.
    • Katsuya Masuda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printing head for use in dot printers
    • Patent number 4,687,355
    • Issue date Aug 18, 1987
    • Citizen Watch Co., Ltd.
    • Tsutomu Ikehata
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Core block for printing head
    • Patent number D281077
    • Issue date Oct 22, 1985
    • Citizen Watch Co., Ltd.
    • Makoto Yasunaga
    • D18 - Printing and office machinery