TREA

Yoshihiko YOKOYAMA

Follow

Person

  • Sendai-shi, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Arc melting furnace apparatus
    • Patent number 8,651,169
    • Issue date Feb 18, 2014
    • Diavac Limited
    • Masaki Nagata
    • B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

  • Information Patent Application

    DENTAL MEMBER
    • Publication number 20170172711
    • Publication date Jun 22, 2017
    • MARUEMU WORKS CO., LTD.
    • Teruko YAMAMOTO
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    ARC MELTING FURNACE APPARATUS AND METHOD OF ARC MELTING MELT MATERIAL
    • Publication number 20140326424
    • Publication date Nov 6, 2014
    • TOHOKU TECHNO ARCH CO., LTD
    • Motohiro Kameyama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    METAL POWDER PRODUCTION METHOD AND METAL POWDER PRODUCTION DEVICE
    • Publication number 20140202286
    • Publication date Jul 24, 2014
    • HARD INDUSTRY YUGEN KAISHA
    • Yoshihiko Yokoyama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    ARC MELTING FURNACE DEVICE
    • Publication number 20130068417
    • Publication date Mar 21, 2013
    • Masaki Nagata
    • B22 - CASTING POWDER METALLURGY