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  • CPC
  • B43K21/16
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B43Writing accessories B43KIMPLEMENTS FOR WRITING OR DRAWING B43K21/00Propelling pencils

Current Industry

B43K21/16with stepwise feed of writing-cores
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical pencil
    • Patent number 12,151,503
    • Issue date Nov 26, 2024
    • WENZHOU TIANJIAO PEN INDUSTRIAL CO., LTD.
    • Aiguo Han
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 11,993,097
    • Issue date May 28, 2024
    • Kabushiki Kaisha Pilot Corporation
    • Yusuke Sanada
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • 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

    Knocking-type writing instrument equipped with eraser
    • Patent number 11,214,092
    • Issue date Jan 4, 2022
    • Micro Co., Ltd.
    • Tomohiro Hosoya
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil with a side button and an eraser dispenser and a...
    • Patent number 10,668,766
    • Issue date Jun 2, 2020
    • Societe BIC
    • Franck Rolion
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    One-hand operated multi-pencil
    • Patent number 10,618,343
    • Issue date Apr 14, 2020
    • Armin Arminak
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 10,603,948
    • Issue date Mar 31, 2020
    • Kotobuki & Co., Ltd.
    • Tadao Odaka
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 10,500,891
    • Issue date Dec 10, 2019
    • Kabushiki Kaisha Pilot Corporation
    • Takumi Kajiwara
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • 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

    Electronic pen
    • Patent number 10,216,295
    • Issue date Feb 26, 2019
    • Wacom Co., Ltd.
    • Kohei Tanaka
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 9,834,032
    • Issue date Dec 5, 2017
    • Mitsubishi Pencil Company, Limited
    • Kei Oomoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 9,669,649
    • Issue date Jun 6, 2017
    • Mitsubishi Pencil Company, Limited
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Chuck body and mechanical pencil
    • Patent number 9,649,872
    • Issue date May 16, 2017
    • Mitsubishi Pencil Company, Limited
    • Yusuke Koizumi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument or applicator having resin molded parts
    • Patent number 9,597,920
    • Issue date Mar 21, 2017
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kei Oomoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 9,358,828
    • Issue date Jun 7, 2016
    • Mitsubishi Pencil Company, Limited
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lead holder having a slidable push member
    • Patent number 9,340,061
    • Issue date May 17, 2016
    • Societe BIC
    • Franck Rolion
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 9,302,529
    • Issue date Apr 5, 2016
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil having lead-rotating mechanism
    • Patent number 9,180,722
    • Issue date Nov 10, 2015
    • Micro Co., Ltd.
    • Tomohiro Hosoya
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 8,920,057
    • Issue date Dec 30, 2014
    • Kotobuki & Co., Ltd.
    • Yoshio Noguchi
    • 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

    Mechanical pencil
    • Patent number 8,337,107
    • Issue date Dec 25, 2012
    • Mitsubishi Pencil Co., Ltd.
    • Norio Ohsawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stick-shaped article propelling container
    • Patent number 7,997,821
    • Issue date Aug 16, 2011
    • Kotobuki & Co. Ltd.
    • Juri Saitou
    • 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

    Mechanical pencil
    • Patent number 7,850,380
    • Issue date Dec 14, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 7,850,381
    • Issue date Dec 14, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 7,806,615
    • Issue date Oct 5, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 7,802,936
    • Issue date Sep 28, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 7,588,383
    • Issue date Sep 15, 2009
    • Sakura Color Products Corporation
    • Shunsuke Hokimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lead holding structure of mechanical pencil
    • Patent number 7,452,148
    • Issue date Nov 18, 2008
    • Mitsubishi Pencil Co., Ltd.
    • Takeo Fukumoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20240100877
    • Publication date Mar 28, 2024
    • WENZHOU TIANJIAO PEN INDUSTRIAL CO., LTD.
    • Aiguo HAN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20220410614
    • Publication date Dec 29, 2022
    • KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION )
    • Yusuke SANADA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20220144008
    • Publication date May 12, 2022
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Takamasa Fukuda
    • 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

    KNOCKING-TYPE WRITING INSTRUMENT EQUIPPED WITH ERASER
    • Publication number 20210001661
    • Publication date Jan 7, 2021
    • Micro Co., Ltd.
    • Tomohiro HOSOYA
    • 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

    WRITING IMPLEMENT
    • Publication number 20200009899
    • Publication date Jan 9, 2020
    • Kotobuki & Co., Ltd.
    • Tadao ODAKA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20190344603
    • Publication date Nov 14, 2019
    • Kotobuki & Co., Ltd.
    • Tadashi Keda
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20190308442
    • Publication date Oct 10, 2019
    • Kotobuki & Co., Ltd.
    • Yoshio NOGUCHI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL WITH SIDE BUTTON AND ERASER DISPENSER AND METHOD...
    • Publication number 20190047320
    • Publication date Feb 14, 2019
    • SOCIETE BIC
    • Franck Rolion
    • 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

    MECHANICAL PENCIL
    • Publication number 20180186173
    • Publication date Jul 5, 2018
    • KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
    • Takumi KAJIWARA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20150336419
    • Publication date Nov 26, 2015
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kei OOMOTO
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20150050061
    • Publication date Feb 19, 2015
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL HAVING LEAD-ROTATING MECHANISM
    • Publication number 20150030369
    • Publication date Jan 29, 2015
    • Micro Co., Ltd.
    • Tomohiro HOSOYA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20150023714
    • Publication date Jan 22, 2015
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL HAVING LEAD-ROTATING MECHANISM
    • Publication number 20140079462
    • Publication date Mar 20, 2014
    • Tomohiro HOSOYA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20140016982
    • Publication date Jan 16, 2014
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20120230751
    • Publication date Sep 13, 2012
    • Kotobuki & Co , Ltd.
    • Yoshio Noguchi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Tubular Holder
    • Publication number 20110250004
    • Publication date Oct 13, 2011
    • Mei-Chang Chung
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Mechanical pencil
    • Publication number 20110188918
    • Publication date Aug 4, 2011
    • MICRO CO., LTD.
    • Hiroyuki Kanari
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    UNIVERSAL PENCIL MECHANISM
    • Publication number 20110103874
    • Publication date May 5, 2011
    • George Reekie
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20100322695
    • Publication date Dec 23, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Norio Ohsawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20100266325
    • Publication date Oct 21, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20100254746
    • Publication date Oct 7, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20100239351
    • Publication date Sep 23, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MECHANICAL PENCIL
    • Publication number 20100232863
    • Publication date Sep 16, 2010
    • Mitsubishi Pencil Co., Ltd.
    • Hirotake Izawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • 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

    Mechanical pencil
    • Publication number 20090028626
    • Publication date Jan 29, 2009
    • Shunsuke Hokimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES