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Satoru Banzai

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  • Fujioka-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Erasing tool
    • Patent number 11,787,225
    • Issue date Oct 17, 2023
    • Mitsubishi Pencil Company, Limited
    • Ryosuke Matsushima
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Erasing member and erasing tool using the same
    • Patent number 11,207,913
    • Issue date Dec 28, 2021
    • Mitsubishi Pencil Company, Limited
    • Satoru Banzai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil lead
    • Patent number 11,179,962
    • Issue date Nov 23, 2021
    • Mitsubishi Pencil Company, Limited
    • Hiroyuki Arai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil lead
    • Patent number 9,896,591
    • Issue date Feb 20, 2018
    • Mitsubishi Pencil Company, Limited
    • Hiroyuki Arai
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Color pencil lead
    • Patent number 9,856,387
    • Issue date Jan 2, 2018
    • Mitsubishi Pencil Company, Limited
    • Satoru Banzai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 9,636,940
    • Issue date May 2, 2017
    • Mitsubishi Pencil Company, Limited
    • Toshimi Kamitani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil lead and production process for the same
    • Patent number 8,349,063
    • Issue date Jan 8, 2013
    • Mitsubishi Pencil Company, Limited
    • Satoru Banzai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    CALCINED SOLID DRAWING MATERIAL
    • Publication number 20230242784
    • Publication date Aug 3, 2023
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Ryota KUBO
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    NON-BAKED PENCIL LEAD
    • Publication number 20210371690
    • Publication date Dec 2, 2021
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Ryota KUBO
    • B82 - NANO-TECHNOLOGY
  • Information Patent Application

    ERASING TOOL
    • Publication number 20200101787
    • Publication date Apr 2, 2020
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Ryosuke MATSUSHIMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL LEAD
    • Publication number 20190263172
    • Publication date Aug 29, 2019
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Hiroyuki Arai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL LEAD
    • Publication number 20170174923
    • Publication date Jun 22, 2017
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Hiroyuki Arai
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Color Pencil Lead
    • Publication number 20160362574
    • Publication date Dec 15, 2016
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Satoru BANZAI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT
    • Publication number 20150298489
    • Publication date Oct 22, 2015
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Toshimi KAMITANI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ERASING MEMBER AND ERASING TOOL USING THE SAME
    • Publication number 20140150203
    • Publication date Jun 5, 2014
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Satoru Banzai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL LEAD AND PRODUCTION PROCESS FOR THE SAME
    • Publication number 20120037035
    • Publication date Feb 16, 2012
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Satoru Banzai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES