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Yasumasa Morio

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Writing implement with automatic lead projection
    • Patent number 4,478,529
    • Issue date Oct 23, 1984
    • Kabushiki Kaisha Sakurakurepasu
    • Yasumasa Morio
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Synthetic resin nib
    • Patent number 4,217,060
    • Issue date Aug 12, 1980
    • Sakura Color Products Corporation
    • Kouzaburo Ikegami
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES