Hiroyuki Hyakutake

Person

  • Yokohama, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Optical recording medium

    • Patent number 5,283,094
    • Issue date Feb 1, 1994
    • Mitsui Toatsu Chemicals, Inc.
    • Tomoyoshi Sasakawa
    • G11 - INFORMATION STORAGE