TREA

Yojiro Sano

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Optical collimator, optical connector using same and holding member...
    • Patent number 8,687,929
    • Issue date Apr 1, 2014
    • Mitsubishi Pencil Company Limited
    • Naohiko Moriya
    • G02 - OPTICS
  • Information Patent Grant

    Writing implement
    • Patent number 8,142,091
    • Issue date Mar 27, 2012
    • Mitsubishi Pencil Co., Ltd.
    • Yojiro Sano
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Production processes for writing instrument and ink occlusion body
    • Patent number 7,223,037
    • Issue date May 29, 2007
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument cap
    • Patent number 6,974,272
    • Issue date Dec 13, 2005
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument, writing instrument cap and method of assembly o...
    • Patent number 6,966,718
    • Issue date Nov 22, 2005
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Collector type writing implement
    • Patent number 6,769,827
    • Issue date Aug 3, 2004
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Collector type writing implement
    • Patent number 6,619,870
    • Issue date Sep 16, 2003
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Collector type writing instrument
    • Patent number 6,619,871
    • Issue date Sep 16, 2003
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Collector type writing instrument
    • Patent number 6,602,012
    • Issue date Aug 5, 2003
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Collector type writing instrument
    • Patent number 6,588,963
    • Issue date Jul 8, 2003
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Double ended direct-feed type writing implement
    • Patent number 6,435,747
    • Issue date Aug 20, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Collector for a writing implement
    • Patent number 6,371,676
    • Issue date Apr 16, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents