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Takashi Shirakawa

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  • Iwate-ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermal head
    • Patent number 7,692,676
    • Issue date Apr 6, 2010
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Power-saving thermal head
    • Patent number 7,046,265
    • Issue date May 16, 2006
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head
    • Patent number 6,950,117
    • Issue date Sep 27, 2005
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head
    • Patent number 6,767,081
    • Issue date Jul 27, 2004
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head enabling continuous printing without print quality det...
    • Patent number 6,529,224
    • Issue date Mar 4, 2003
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head with small size of steps of protective layer formed on...
    • Patent number 6,501,497
    • Issue date Dec 31, 2002
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head
    • Patent number 6,201,558
    • Issue date Mar 13, 2001
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head
    • Patent number 6,181,360
    • Issue date Jan 30, 2001
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head
    • Patent number 5,661,513
    • Issue date Aug 26, 1997
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head
    • Patent number 5,635,975
    • Issue date Jun 3, 1997
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head
    • Patent number 5,594,488
    • Issue date Jan 14, 1997
    • Alps Electric Co., Ltd.
    • Noboru Tsushima
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head, manufacturing method, and thermal printer using the t...
    • Patent number 5,477,266
    • Issue date Dec 19, 1995
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermal head and manufacturing method
    • Patent number 5,473,357
    • Issue date Dec 5, 1995
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Sliding contact part for recording medium
    • Patent number 5,374,946
    • Issue date Dec 20, 1994
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Resin-coated thermal printer head
    • Patent number 5,162,814
    • Issue date Nov 10, 1992
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

  • Information Patent Application

    Thermal head
    • Publication number 20040212669
    • Publication date Oct 28, 2004
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Thermal head
    • Publication number 20030103112
    • Publication date Jun 5, 2003
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Power-saving thermal head
    • Publication number 20020158959
    • Publication date Oct 31, 2002
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Thermal head enabling continuous printing without print quality det...
    • Publication number 20020145658
    • Publication date Oct 10, 2002
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Thermal head with small size of steps of protective layer formed on...
    • Publication number 20020024582
    • Publication date Feb 28, 2002
    • Alps Electric Co., Ltd.
    • Takashi Shirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS