TREA

Ryohei Tsutsumi

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  • Shizuoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Restricting member, developing device, process cartridge, and image...
    • Patent number 11,860,565
    • Issue date Jan 2, 2024
    • Canon Kabushiki Kaisha
    • Issei Imamura
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Development cartridge
    • Patent number 11,693,335
    • Issue date Jul 4, 2023
    • Canon Kabushiki Kaisha
    • Takuya Oka
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Development cartridge
    • Patent number 11,300,900
    • Issue date Apr 12, 2022
    • Canon Kabushiki Kaisha
    • Takuya Oka
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents