Hisao Watarai

Person

  • Yagiyamaminami, Sendai-shi, Miyagi, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Recording medium

    • Patent number 4,636,806
    • Issue date Jan 13, 1987
    • Research Development Corporation of Japan
    • Hisao Watarai
    • G11 - INFORMATION STORAGE