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Kabushikikaisha Kotobuki

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  • Kyoto, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical pencil
    • Patent number 4,714,365
    • Issue date Dec 22, 1987
    • Kabushikikaisha Kotobuki
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Knock-type propelling pencil with storage cartridge
    • Patent number 4,583,874
    • Issue date Apr 22, 1986
    • Kabushikikaisha Kotobuki
    • Toshihiko Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES