TREA

Takahiko Suzuki

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Combustion gas extraction probe and combustion gas treatment method
    • Patent number 10,066,873
    • Issue date Sep 4, 2018
    • Taiheiyo Cement Corporation
    • Shinichiro Saito
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Double-chuck mechanical pencil
    • Patent number 6,334,728
    • Issue date Jan 1, 2002
    • Kotobuki & Co.,Ltd.
    • Takahiko Suzuki
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Side-knock type mechanical pencil
    • Patent number 6,203,226
    • Issue date Mar 20, 2001
    • Kotobuki & Co., Ltd.
    • Takahiko Suzuki
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing implement with side actuator
    • Patent number 5,184,908
    • Issue date Feb 9, 1993
    • Kotobuki & Co., Ltd.
    • Tadashi Yamamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Swing-type mechanical pencil
    • Patent number 5,149,219
    • Issue date Sep 22, 1992
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Swing-type mechanical pencil
    • Patent number 4,929,107
    • Issue date May 29, 1990
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument with weight actuation
    • Patent number 4,669,904
    • Issue date Jun 2, 1987
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Spare lead holder
    • Patent number 4,403,691
    • Issue date Sep 13, 1983
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Automatic sharp pencil
    • Patent number 4,386,865
    • Issue date Jun 7, 1983
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Automatic pencil
    • Patent number 4,371,277
    • Issue date Feb 1, 1983
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Clip for writing utensil
    • Patent number 4,365,390
    • Issue date Dec 28, 1982
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Automatic pencil
    • Patent number 4,171,170
    • Issue date Oct 16, 1979
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 4,165,941
    • Issue date Aug 28, 1979
    • Kotobuki & Co. Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents