TREA

Tadayoshi Ebinuma

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  • Hohya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Composite holding device
    • Patent number 7,008,131
    • Issue date Mar 7, 2006
    • Kotobuki & Co., Ltd.
    • Hidehei Kagevarna
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Double-chuck mechanical pencil
    • Patent number 6,379,067
    • Issue date Apr 30, 2002
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Double-chuck mechanical pencil
    • Patent number 6,039,485
    • Issue date Mar 21, 2000
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 5,961,237
    • Issue date Oct 5, 1999
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 5,810,496
    • Issue date Sep 22, 1998
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument with rotatable advancement and retraction
    • Patent number 5,547,301
    • Issue date Aug 20, 1996
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Clip attachment apparatus for a writing instrument
    • Patent number 5,535,487
    • Issue date Jul 16, 1996
    • The Gillette Company
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Container with snap-in chuck and chuck ring
    • Patent number 5,165,813
    • Issue date Nov 24, 1992
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Dual refill-type writing utensil
    • Patent number 5,056,947
    • Issue date Oct 15, 1991
    • Kotobuki & Co., Ltd.
    • Masuo Kubota
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lead forwarding mechanism retainer for thurst action mechanical pencil
    • Patent number 4,969,763
    • Issue date Nov 13, 1990
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Working out container of bar shaped article
    • Patent number 4,856,693
    • Issue date Aug 15, 1989
    • Kotobuki and Company, Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    Composite holding device
    • Publication number 20020085874
    • Publication date Jul 4, 2002
    • Hidehei Kagevarna
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    DOUBLE-CHUCK MECHANICAL PENCIL
    • Publication number 20010043832
    • Publication date Nov 22, 2001
    • HIDEHEI KAGEYAMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES