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Akio Ito

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  • Nagoya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Synthetic resin pen unit
    • Patent number 4,840,509
    • Issue date Jun 20, 1989
    • Pilot Ink Co., Ltd.
    • Akio Ito
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Synthetic resin pen unit
    • Patent number 4,721,404
    • Issue date Jan 26, 1988
    • Pilot Ink Co., Ltd.
    • Akio Ito
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Composite pen tip
    • Patent number 4,410,290
    • Issue date Oct 18, 1983
    • Pilot Ink Co., Ltd.
    • Akio Ito
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Refractory material for labeling, which contains an activatable ele...
    • Patent number 4,125,144
    • Issue date Nov 14, 1978
    • Toyota Jidosha Kogyo Kabushiki Kaisha
    • Junichi Kawamoto
    • B22 - CASTING POWDER METALLURGY