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YOSHIHIDE MITSUYA

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  • KAWAGOE-SHI, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double-chuck mechanical pencil
    • Patent number 6,517,272
    • Issue date Feb 11, 2003
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Double-chuck mechanical pencil
    • Patent number 6,517,271
    • Issue date Feb 11, 2003
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 6,491,467
    • Issue date Dec 10, 2002
    • Kotobuki & Co., Ltd.
    • Yoshihide Mitsuya
    • 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

    Coat transfer tool
    • Patent number 6,325,130
    • Issue date Dec 4, 2001
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Knocking writing utensil
    • Patent number 6,287,036
    • Issue date Sep 11, 2001
    • Kotobuki & Co., Ltd.
    • Tadashi Keda
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Side knock type mechanical pencil
    • Patent number 6,210,058
    • Issue date Apr 3, 2001
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Paint film transfer device
    • Patent number 6,171,397
    • Issue date Jan 9, 2001
    • Kotobuki & Co., Ltd.
    • Yoshihide Mitsuya
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Side knock-type mechanical pencil
    • Patent number 6,099,182
    • Issue date Aug 8, 2000
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 6,082,916
    • Issue date Jul 4, 2000
    • 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 6,039,484
    • Issue date Mar 21, 2000
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Barrel with finger gripping means
    • Patent number 5,997,200
    • Issue date Dec 7, 1999
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Barrel with finger gripping means
    • Patent number 5,988,908
    • Issue date Nov 23, 1999
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 5,988,914
    • Issue date Nov 23, 1999
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Double-chuck mechanical pencil
    • Patent number 5,988,913
    • Issue date Nov 23, 1999
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Side knock-type writing instrument
    • Patent number 5,971,644
    • Issue date Oct 26, 1999
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Double-chuck mechanical pencil
    • Patent number 5,947,620
    • Issue date Sep 7, 1999
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Bar extruding implement with ejector
    • Patent number 5,890,827
    • Issue date Apr 6, 1999
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Side knock type mechanical pencil
    • Patent number 5,836,707
    • Issue date Nov 17, 1998
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stick-shaped material propelling container
    • Patent number 5,803,637
    • Issue date Sep 8, 1998
    • Kotobuki & Co., Ltd.
    • Yoshihide Mitsuya
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Side knock type mechanical pencil
    • Patent number 5,791,797
    • Issue date Aug 11, 1998
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lead dispensing storage container
    • Patent number 5,788,118
    • Issue date Aug 4, 1998
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lead dispensing storage container
    • Patent number 5,720,643
    • Issue date Feb 24, 1998
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Combined writing tool
    • Patent number 5,713,680
    • Issue date Feb 3, 1998
    • Crown Fancy Goods Co., Ltd.
    • Tokiyoshi Yoshino
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Side knock type mechanical pencil
    • Patent number 5,702,193
    • Issue date Dec 30, 1997
    • Kotobuki & Co.,Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing tool
    • Patent number 5,700,101
    • Issue date Dec 23, 1997
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing tool
    • Patent number 5,683,191
    • Issue date Nov 4, 1997
    • Kotobuki & Co., Ltd.
    • Shuhei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stick-shaped material propelling container
    • Patent number 5,662,425
    • Issue date Sep 2, 1997
    • Kotobuki & Co., Ltd.
    • Yoshihide Mitsuya
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stick-shaped material propelling device
    • Patent number 5,553,956
    • Issue date Sep 10, 1996
    • Kotobuki & Co., Ltd.
    • Yoshihide Mitsuya
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    STICK-SHAPED ARTICLE PROPELLING CONTAINER
    • Publication number 20100021227
    • Publication date Jan 28, 2010
    • KOTOBUKI & CO., LTD.
    • Yoshihide Mitsuya
    • 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