Ink reservoirs Ink cartridges

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  • B43K7/02
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    LIQUID STORAGE MEMBER FOR COATING TOOLS

    • Publication number 20240042735
    • Publication date Feb 8, 2024
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Saki TANAKA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    POCKET SIZE PEN

    • Publication number 20230347681
    • Publication date Nov 2, 2023
    • Justin Lowes
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    BALLPOINT PEN

    • Publication number 20230322010
    • Publication date Oct 12, 2023
    • Kabushiki Kaisha Pilot Corporation (Also Trading as Pilot Corporation)
    • Yusuke SANADA
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    REFILLABLE FREE INK WRITING INSTRUMENT, KIT COMPRISING SUCH A WRITI...

    • Publication number 20230311557
    • Publication date Oct 5, 2023
    • SOCIETE BIC
    • Arnaud BEZ
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    REVERSIBLY THERMOCHROMIC COMPOSITION AND REVERSIBLY THERMOCHROMIC M...

    • Publication number 20230287259
    • Publication date Sep 14, 2023
    • The Pilot Ink Co., Ltd.
    • Hiroshi UMEMOTO
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    INK COMPOSITION FOR WATER-BASED BALLPOINT PEN

    • Publication number 20230073595
    • Publication date Mar 9, 2023
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Akiko HIRAYAMA
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    LIQUID STORAGE MEMBER FOR COATING TOOLS

    • Publication number 20220355612
    • Publication date Nov 10, 2022
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Shuji Ichikawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WATER-BASED BALLPOINT PEN

    • Publication number 20220194118
    • Publication date Jun 23, 2022
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kousuke OGURA
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    INK RESERVOIR UNIT FOR WRITING INSTRUMENTS AND WRITING INSTRUMENTS

    • Publication number 20220176728
    • Publication date Jun 9, 2022
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Shuji Ichikawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Detectable Component for a Writing Implement

    • Publication number 20220161592
    • Publication date May 26, 2022
    • Sean Ronald Smith
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT

    • Publication number 20220080767
    • Publication date Mar 17, 2022
    • THE PILOT INK CO., LTD.
    • Yoshihiro Ito
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    INK COMPOSITION , WRITING INSTRUMENT AND METHOD FOR PRODUCING INK C...

    • Publication number 20210095144
    • Publication date Apr 1, 2021
    • Sachiko ONUKI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING METHOD AND APPARATUS

    • Publication number 20210016595
    • Publication date Jan 21, 2021
    • JOSEPH D. MARESH
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENT

    • Publication number 20200317941
    • Publication date Oct 8, 2020
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kousuke Ogura
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Opaque Ink Formulations and Associated Writing Instruments

    • Publication number 20200255680
    • Publication date Aug 13, 2020
    • Sanford L.P.
    • Wing Sum Vincent Kwan
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Thermochromic Writing Tool

    • Publication number 20200094610
    • Publication date Mar 26, 2020
    • Kabushiki Kaisha Pilot Corporation (Also Trading as Pilot Corporation)
    • Masahiro Kogure
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT

    • Publication number 20200047540
    • Publication date Feb 13, 2020
    • THE PILOT INK CO., LTD.
    • Yoshihiro Ito
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    INK COMPOSITION , WRITING TOOL AND METHOD FOR PRODUCING INK COMPOSI...

    • Publication number 20190338151
    • Publication date Nov 7, 2019
    • PENTEL KABUSHIKI KAISHA
    • Katsuji ARISAWA
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    DEVICE THAT PRODUCES COLOR ON DEMAND

    • Publication number 20190322119
    • Publication date Oct 24, 2019
    • SOCIETE BIC
    • Etienne ROUDAUT
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    REFILL FRIENDLY PEN BODY

    • Publication number 20190135023
    • Publication date May 9, 2019
    • Chadwick Parker
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CYLINDRICAL MOLDED ARTICLE

    • Publication number 20190047317
    • Publication date Feb 14, 2019
    • Asahi Kasei Kabushiki Kaisha
    • Yuki KUROSU
    • B32 - LAYERED PRODUCTS
  • Information Patent Application

    CYLINDRICAL MOLDED ARTICLE AND BARRIER PLUG, BARRIER PLUG-ATTACHED...

    • Publication number 20190047316
    • Publication date Feb 14, 2019
    • Asahi Kasei Kabushiki Kaisha
    • Naoki TAKAGI
    • B32 - LAYERED PRODUCTS
  • Information Patent Application

    WRITING INSTRUMENT

    • Publication number 20180086133
    • Publication date Mar 29, 2018
    • Yoshihiro Ito
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    THERMOCHROMIC MICRO PARTICLES AND THERMOCHROMIC INK COMPOSITION, WR...

    • Publication number 20160376458
    • Publication date Dec 29, 2016
    • DONG-A PENCIL CO., LTD.
    • Hak Jae KIM
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    TELESCOPING WRITING IMPLEMENT

    • Publication number 20160339737
    • Publication date Nov 24, 2016
    • Paul Cary Fisher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Marking Device and Method

    • Publication number 20160318333
    • Publication date Nov 3, 2016
    • Martin Chard
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    BIOPLASMONIC CALLIGRAPHY FOR LABEL-FREE BIODETECTION

    • Publication number 20160257830
    • Publication date Sep 8, 2016
    • Srikanth Singamaneni
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WATER-BASED INK COMPOSITION AND WATER-BASED BALLPOINT PEN

    • Publication number 20150376423
    • Publication date Dec 31, 2015
    • Hiroyuki KADOWAKI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    BALL PEN

    • Publication number 20150165812
    • Publication date Jun 18, 2015
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Takeo Fukumoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    WRITING INSTRUMENT WITH ERASING MEMBER

    • Publication number 20140331448
    • Publication date Nov 13, 2014
    • Hiroshi Ohtsuka
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES