TREA

Hidehei Kageyama

Follow

Person

  • Kawagoe, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Writing instrument refills and writing instrument
    • Patent number 12,090,777
    • Issue date Sep 17, 2024
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number D1010733
    • Issue date Jan 9, 2024
    • MITSUBISHI PENCIL COMPANY, LTD.
    • Hiroaki Kondo
    • D19 - Office supplies
  • Information Patent Grant

    Writing instrument
    • Patent number D998038
    • Issue date Sep 5, 2023
    • MITSUBISHI PENCIL COMPANY, LTD.
    • Hiroaki Kondo
    • D19 - Office supplies
  • Information Patent Grant

    Mechanical pencil
    • Patent number 11,390,109
    • Issue date Jul 19, 2022
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 11,090,969
    • Issue date Aug 17, 2021
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Hand tools, cosmetic devices and writing instruments
    • Patent number 11,065,907
    • Issue date Jul 20, 2021
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Sleeve for a mechanical pencil
    • Patent number D908796
    • Issue date Jan 26, 2021
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • D19 - Office supplies
  • Information Patent Grant

    Mechanical pencil
    • Patent number D895729
    • Issue date Sep 8, 2020
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • D19 - Office supplies
  • Information Patent Grant

    Sleeve with cushion spring for mechanical pencil
    • Patent number D871502
    • Issue date Dec 31, 2019
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • D19 - Office supplies
  • Information Patent Grant

    Writing instrument
    • Patent number 10,343,446
    • Issue date Jul 9, 2019
    • Kotobuki & Co., Ltd.
    • Takeshi Wakayama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 10,293,632
    • Issue date May 21, 2019
    • Kotobuki & Co., Ltd.
    • Takeshi Wakayama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Liquid applying tool
    • Patent number 9,862,225
    • Issue date Jan 9, 2018
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 9,738,112
    • Issue date Aug 22, 2017
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Knock-type propelling container
    • Patent number 9,114,922
    • Issue date Aug 25, 2015
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stick-shaped material propelling container
    • Patent number 9,067,233
    • Issue date Jun 30, 2015
    • Kotobuki & Co., Ltd.
    • Yoshio Noguchi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 8,970,560
    • Issue date Mar 3, 2015
    • Kotobuki & Co., Ltd.
    • Tadashi Keda
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pivotal manipulation type writing instrument
    • Patent number 8,899,857
    • Issue date Dec 2, 2014
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Liquid applicator
    • Patent number 8,740,489
    • Issue date Jun 3, 2014
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Clip attachment structure for a writing instrument
    • Patent number 8,484,808
    • Issue date Jul 16, 2013
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lead cartridge and mechanical pencil with built-in lead cartridge
    • Patent number 8,444,336
    • Issue date May 21, 2013
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Knock-type writing instrument
    • Patent number 8,434,957
    • Issue date May 7, 2013
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stick-shaped material propelling container
    • Patent number 8,348,535
    • Issue date Jan 8, 2013
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    End plug mounting structure for writing instrument
    • Patent number 7,922,411
    • Issue date Apr 12, 2011
    • Kotobuki & Co. Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stick-shaped material propelling container
    • Patent number 7,878,726
    • Issue date Feb 1, 2011
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Clip ornament for a barrel, clip with an ornament and method for at...
    • Patent number 7,607,203
    • Issue date Oct 27, 2009
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Airtight cap structure
    • Patent number 7,290,954
    • Issue date Nov 6, 2007
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument including stick-shaped material propelling mecha...
    • Patent number 7,284,927
    • Issue date Oct 23, 2007
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Clip fixing structure
    • Patent number 7,254,870
    • Issue date Aug 14, 2007
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cartridge type stationery product
    • Patent number 7,210,869
    • Issue date May 1, 2007
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Liquid container
    • Patent number 7,163,350
    • Issue date Jan 16, 2007
    • Kotobuki & Co., Ltd.
    • Yoshio Noguchi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    WRITING INSTRUMENT REFILLS AND WRITING INSTRUMENT
    • Publication number 20230347682
    • Publication date Nov 2, 2023
    • Kotobuki & Co., Ltd.
    • Hidehei KAGEYAMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20210187994
    • Publication date Jun 24, 2021
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT AND METHOD FOR MANUFACTURING WRITING INSTRUMENT
    • Publication number 20210162797
    • Publication date Jun 3, 2021
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    HAND TOOLS, COSMETIC DEVICES AND WRITING INSTRUMENTS
    • Publication number 20210114400
    • Publication date Apr 22, 2021
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20200391539
    • Publication date Dec 17, 2020
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT AND METHOD FOR MANUFACTURING WRITING INSTRUMENT
    • Publication number 20200361230
    • Publication date Nov 19, 2020
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20190375230
    • Publication date Dec 12, 2019
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT
    • Publication number 20180250977
    • Publication date Sep 6, 2018
    • Kotobuki & Co., Ltd.
    • Takeshi WAKAYAMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    LIQUID APPLYING TOOL
    • Publication number 20160136993
    • Publication date May 19, 2016
    • Kotobuki & Co , Ltd.
    • Hidehei KAGEYAMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Mechanical Pencil
    • Publication number 20160039244
    • Publication date Feb 11, 2016
    • Kotobuki & Co., Ltd.
    • Hidehei KAGEYAMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Stick-shaped Material Propelling Container
    • Publication number 20150023715
    • Publication date Jan 22, 2015
    • Kotobuki & Co , Ltd.
    • Yoshio Noguchi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT
    • Publication number 20130300693
    • Publication date Nov 14, 2013
    • Kotobuki & Co , Ltd.
    • Tadashi KEDA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    KNOCK-TYPE PROPELLING CONTAINER
    • Publication number 20130134189
    • Publication date May 30, 2013
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PIVOTAL MANIPULATION TYPE WRITING INSTRUMENT
    • Publication number 20120207529
    • Publication date Aug 16, 2012
    • Kotobuki & Co , Ltd.
    • Hidehei KAGEYAMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CLIP ATTACHMENT STRUCTURE FOR A WRITING INSTRUMENT
    • Publication number 20110191987
    • Publication date Aug 11, 2011
    • KOTOBUKI & CO., LTD.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    KNOCK-TYPE WRITING INSTRUMENT
    • Publication number 20110123250
    • Publication date May 26, 2011
    • Kotobuki & Co , Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    LEAD CARTRIDGE AND MECHANICAL PENCIL WITH BUILT-IN LEAD CARTRIDGE
    • Publication number 20100209173
    • Publication date Aug 19, 2010
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Liquid Applicator
    • Publication number 20100003063
    • Publication date Jan 7, 2010
    • Kotobuki & Co, Ltd
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    End plug mounting structure for writing instrument
    • Publication number 20080260453
    • Publication date Oct 23, 2008
    • Kotobuki & Co. Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Stick-Shaped Material Propelling Container
    • Publication number 20080247804
    • Publication date Oct 9, 2008
    • Kotobuki & Co , Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CAPLESS WRITING TOOL
    • Publication number 20080138139
    • Publication date Jun 12, 2008
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Stick-Shaped Material Propelling Container
    • Publication number 20070248397
    • Publication date Oct 25, 2007
    • Kotobuki & Co , Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Lead Cartridge and Writing Tool into which Lead Cartridge is to be...
    • Publication number 20070217858
    • Publication date Sep 20, 2007
    • Kotobuki & Co, Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CLIP ORNAMENT FOR A BARREL, CLIP WITH AN ORNAMENT AND METHOD FOR AT...
    • Publication number 20070192999
    • Publication date Aug 23, 2007
    • Kotobuki & Co., Ltd.
    • Hidehei KAGEYAMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Airtight Cap Structure
    • Publication number 20070104533
    • Publication date May 10, 2007
    • Kotobuki & Co , Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Liquid Container
    • Publication number 20070086830
    • Publication date Apr 19, 2007
    • Kotobuki & Co , Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing instrument including stick-shaped material propelling mecha...
    • Publication number 20060291947
    • Publication date Dec 28, 2006
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING IMPLEMENT WITH STYLUS
    • Publication number 20060083579
    • Publication date Apr 20, 2006
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Clip fixing structure
    • Publication number 20060053595
    • Publication date Mar 16, 2006
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Liquid container
    • Publication number 20060000350
    • Publication date Jan 5, 2006
    • Kotobuki Printing Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES