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Keiichi Chiba

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Patents Grantslast 30 patents

  • Information Patent Grant

    Printer
    • Patent number 7,275,481
    • Issue date Oct 2, 2007
    • Tohoku Ricoh Co., Ltd.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer
    • Patent number 6,715,412
    • Issue date Apr 6, 2004
    • Tohoku Ricoh Co., Ltd.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer
    • Patent number 6,651,553
    • Issue date Nov 25, 2003
    • Tohoku Ricoh Co., Ltd.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer
    • Patent number 6,647,873
    • Issue date Nov 18, 2003
    • Tohoku Ricoh Co., Ltd.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer
    • Patent number 6,604,459
    • Issue date Aug 12, 2003
    • Tohoku Ricoh Co., Ltd.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Synchronous drive arrangement for a printer
    • Patent number 6,592,481
    • Issue date Jul 15, 2003
    • Tohoku Ricoh Co., Ltd.
    • Hisashi Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Printer
    • Patent number 6,382,094
    • Issue date May 7, 2002
    • Tohoku Ricoh Co., Ltd.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Cam mechanism for stencil duplicating machine
    • Patent number 5,454,308
    • Issue date Oct 3, 1995
    • Tohoku Ricoh Co., Ltd.
    • Takuo Sato
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Sheet feeder
    • Patent number 5,076,562
    • Issue date Dec 31, 1991
    • Ricoh Company, Ltd.
    • Yoshinobu Sai
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Printer
    • Publication number 20030205151
    • Publication date Nov 6, 2003
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Printer
    • Publication number 20020117061
    • Publication date Aug 29, 2002
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Printer
    • Publication number 20020112620
    • Publication date Aug 22, 2002
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Printer
    • Publication number 20020108512
    • Publication date Aug 15, 2002
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Printer
    • Publication number 20010047731
    • Publication date Dec 6, 2001
    • TOHOKU RICOH CO., LTD.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Printer
    • Publication number 20010029850
    • Publication date Oct 18, 2001
    • TOHOKU RICOH CO., LTD.
    • Keiichi Chiba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Synchronous drive arrangement for a printer
    • Publication number 20010024986
    • Publication date Sep 27, 2001
    • TOHOKU RICOH CO., LTD.
    • Hisashi Sato
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS