TREA

Katsuhiro OBATA

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for manufacturing forged article
    • Patent number 11,958,101
    • Issue date Apr 16, 2024
    • PROTERIAL, LTD.
    • Tatsuya Shouji
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Abrasion test apparatus
    • Patent number 11,536,637
    • Issue date Dec 27, 2022
    • Hitachi Metals, Ltd.
    • Yoshihiko Kobayashi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    ABRASION TEST APPARATUS
    • Publication number 20210372899
    • Publication date Dec 2, 2021
    • Hitachi Metals, Ltd.
    • Yoshihiko KOBAYASHI
    • G01 - MEASURING TESTING
  • Information Patent Application

    METHOD FOR MANUFACTURING FORGED ARTICLE
    • Publication number 20210245233
    • Publication date Aug 12, 2021
    • Hitachi Metals, Ltd.
    • Tatsuya SHOUJI
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...