TREA

Masahiro Ohba

Follow

Person

  • Yokohama, JA
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Record disc cutting stylus
    • Patent number 4,033,592
    • Issue date Jul 5, 1977
    • Victor Company of Japan, Limited
    • Kaoru Totuka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Multichannel record disc recording system
    • Patent number 4,016,373
    • Issue date Apr 5, 1977
    • Victor Company of Japan, Limited
    • Yukinobu Ishigaki
    • G11 - INFORMATION STORAGE