TREA

Hiroyuki Tatsumi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lubricant composition
    • Patent number 11,946,013
    • Issue date Apr 2, 2024
    • Idemitsu Kosan Co., Ltd.
    • Yasuhito Nakahara
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Decoder for error-correcting code data
    • Patent number 4,167,701
    • Issue date Sep 11, 1979
    • Nippon Electric Company, Ltd.
    • Takakuni Kuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    LUBRICANT COMPOSITION
    • Publication number 20250145903
    • Publication date May 8, 2025
    • Idemitsu Kosan Co.,Ltd
    • Hiroyuki TATSUMI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    LUBRICANT BASE OIL
    • Publication number 20240425772
    • Publication date Dec 26, 2024
    • Idemitsu Kosan Co.,Ltd
    • Kazushige MATSUBARA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    LUBRICANT COMPOSITION
    • Publication number 20240318094
    • Publication date Sep 26, 2024
    • Idemitsu Kosan Co.,Ltd
    • Hiroyuki TATSUMI
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    LUBRICANT COMPOSITION
    • Publication number 20240043765
    • Publication date Feb 8, 2024
    • IDEMITSU KOSAN CO.,LTD.
    • Kazushige MATSUBARA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    LUBRICANT COMPOSITION
    • Publication number 20230120889
    • Publication date Apr 20, 2023
    • IDEMITSU KOSAN CO.,LTD.
    • Kazushige MATSUBARA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    LUBRICANT COMPOSITION
    • Publication number 20230039111
    • Publication date Feb 9, 2023
    • IDEMITSU KOSAN CO.,LTD.
    • Yasuhito NAKAHARA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    LUBRICATING OIL BASE OIL, LUBRICATING OIL COMPOSITION, AND METHOD F...
    • Publication number 20210355404
    • Publication date Nov 18, 2021
    • IDEMITSU KOSAN CO.,LTD.
    • Kazushi TAMURA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...