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Taku Hatakeyama

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid surface imaging device and liquid discharge apparatus
    • Patent number 11,761,973
    • Issue date Sep 19, 2023
    • Ricoh Company, Ltd.
    • Yuta Moriwaki
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Image forming apparatus
    • Patent number 11,511,551
    • Issue date Nov 29, 2022
    • Ricoh Company, Ltd.
    • Toshiyuki Kobashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid discharging device
    • Patent number 11,472,194
    • Issue date Oct 18, 2022
    • Ricoh Company, Ltd.
    • Satoyuki Sekiguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Image forming apparatus
    • Patent number 11,458,731
    • Issue date Oct 4, 2022
    • Ricoh Company, Ltd.
    • Toshiyuki Kobashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid discharge apparatus
    • Patent number 11,427,016
    • Issue date Aug 30, 2022
    • Ricoh Company, Ltd.
    • Muneyuki Okeguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Wiping device, head maintenance device, and liquid discharge apparatus
    • Patent number 11,267,249
    • Issue date Mar 8, 2022
    • Ricoh Company, Ltd.
    • Takayuki Hase
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid discharge apparatus
    • Patent number 10,953,680
    • Issue date Mar 23, 2021
    • Ricoh Company, Ltd.
    • Satoyuki Sekiguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid discharging device
    • Patent number 10,843,488
    • Issue date Nov 24, 2020
    • Ricoh Company, Ltd.
    • Toshiyuki Kobashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink set and image forming device
    • Patent number 10,807,378
    • Issue date Oct 20, 2020
    • Ricoh Company, Ltd.
    • Takashi Watanabe
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Liquid discharge apparatus
    • Patent number 10,696,069
    • Issue date Jun 30, 2020
    • Ricoh Company, Ltd.
    • Taku Hatakeyama
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid discharge apparatus
    • Patent number 10,654,292
    • Issue date May 19, 2020
    • Ricoh Company, Ltd.
    • Taku Hatakeyama
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink set and image forming device
    • Patent number 10,618,331
    • Issue date Apr 14, 2020
    • Ricoh Company, Ltd.
    • Takashi Watanabe
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Head cleaner and liquid discharge apparatus
    • Patent number 10,350,895
    • Issue date Jul 16, 2019
    • Ricoh Company, Ltd.
    • Yuichi Tanioku
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

  • Information Patent Application

    LIQUID DISCHARGING DEVICE
    • Publication number 20210316556
    • Publication date Oct 14, 2021
    • RICOH COMPANY, LTD.
    • Satoyuki SEKIGUCHI
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    WIPING DEVICE, HEAD MAINTENANCE DEVICE, AND LIQUID DISCHARGE APPARATUS
    • Publication number 20210187952
    • Publication date Jun 24, 2021
    • Takayuki HASE
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20210094294
    • Publication date Apr 1, 2021
    • Toshiyuki KOBASHI
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20210094319
    • Publication date Apr 1, 2021
    • Toshiyuki KOBASHI
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID SURFACE IMAGING DEVICE AND LIQUID DISCHARGE APPARATUS
    • Publication number 20210063427
    • Publication date Mar 4, 2021
    • Yuta Moriwaki
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID DISCHARGING DEVICE
    • Publication number 20200101767
    • Publication date Apr 2, 2020
    • Toshiyuki KOBASHI
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID DISCHARGE APPARATUS
    • Publication number 20200101782
    • Publication date Apr 2, 2020
    • Satoyuki SEKIGUCHI
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID DISCHARGE APPARATUS
    • Publication number 20200094582
    • Publication date Mar 26, 2020
    • Muneyuki OKEGUCHI
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID DISCHARGE APPARATUS
    • Publication number 20190283460
    • Publication date Sep 19, 2019
    • Taku HATAKEYAMA
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    INK SET AND IMAGE FORMING DEVICE
    • Publication number 20190275805
    • Publication date Sep 12, 2019
    • Takashi WATANABE
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    LIQUID DISCHARGE APPARATUS
    • Publication number 20190275811
    • Publication date Sep 12, 2019
    • Taku HATAKEYAMA
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    INK SET AND IMAGE FORMING DEVICE
    • Publication number 20190275818
    • Publication date Sep 12, 2019
    • Takashi WATANABE
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    HEAD CLEANER AND LIQUID DISCHARGE APPARATUS
    • Publication number 20180264822
    • Publication date Sep 20, 2018
    • RICOH COMPANY, LTD.
    • Yuichi Tanioku
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS