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Yoshihisa Minakawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Sheet supply/convey supporting device
    • Patent number 7,901,176
    • Issue date Mar 8, 2011
    • Ricoh Company, Limited
    • Yoshihisa Minakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Mass sheet feed tray
    • Patent number D595766
    • Issue date Jul 7, 2009
    • Ricoh Company, Ltd.
    • Takashi Munakata
    • D18 - Printing and office machinery
  • Information Patent Grant

    High-speed copying machine with a finisher
    • Patent number D588188
    • Issue date Mar 10, 2009
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Dry electrostatic copying machine
    • Patent number D580482
    • Issue date Nov 11, 2008
    • Ricoh Company, Ltd.
    • Takashi Munakata
    • D18 - Printing and office machinery
  • Information Patent Grant

    Full color multi-function printing machine
    • Patent number D521056
    • Issue date May 16, 2006
    • Ricoh Company, Ltd.
    • Shigeru Horiguchi
    • D18 - Printing and office machinery
  • Information Patent Grant

    Wide digital copying machine
    • Patent number D494210
    • Issue date Aug 10, 2004
    • Ricoh Company, Ltd.
    • Yohichi Watanabe
    • D18 - Printing and office machinery
  • Information Patent Grant

    Image forming apparatus
    • Patent number 6,631,867
    • Issue date Oct 14, 2003
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Image forming apparatus capable of smoothly feeding large-size shee...
    • Patent number 6,536,645
    • Issue date Mar 25, 2003
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Wide digital copying machine
    • Patent number D452874
    • Issue date Jan 8, 2002
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Electronic copying machine
    • Patent number D443886
    • Issue date Jun 19, 2001
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Electronic copying machine
    • Patent number D432160
    • Issue date Oct 17, 2000
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Stacker for electronic copying machine
    • Patent number D429275
    • Issue date Aug 8, 2000
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Automatic document feeder for electronic copying machine
    • Patent number D429276
    • Issue date Aug 8, 2000
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Electronic copying machine
    • Patent number D428914
    • Issue date Aug 1, 2000
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Control panel for electronic copying machine
    • Patent number D426259
    • Issue date Jun 6, 2000
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Sheet feeder for electronic copying machine
    • Patent number D426260
    • Issue date Jun 6, 2000
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Electronic copying machine
    • Patent number D425108
    • Issue date May 16, 2000
    • Ricoh Company, Ltd.
    • Masaaki Kabumoto
    • D18 - Printing and office machinery
  • Information Patent Grant

    Electronic copying machine
    • Patent number D358411
    • Issue date May 16, 1995
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Digital printer
    • Patent number D350978
    • Issue date Sep 27, 1994
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Document feeder for copying machine
    • Patent number D339155
    • Issue date Sep 7, 1993
    • Ricoh Company, Ltd.
    • Yuji Suzuki
    • D18 - Printing and office machinery
  • Information Patent Grant

    Electrostatic copying machine
    • Patent number D331772
    • Issue date Dec 15, 1992
    • Ricoh Company, Ltd.
    • Yuji Suzuki
    • D18 - Printing and office machinery
  • Information Patent Grant

    Camera
    • Patent number D314582
    • Issue date Feb 12, 1991
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Camera
    • Patent number D306308
    • Issue date Feb 27, 1990
    • Ricoh Company, Ltd.
    • Yoshihisa Minakawa
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Camera
    • Patent number D296703
    • Issue date Jul 12, 1988
    • Ricoh Company, Ltd.
    • Tetsuya Goto
    • D16 - Photography and optical equipment

Patents Applicationslast 30 patents

  • Information Patent Application

    Sheet supply/convey supporting device
    • Publication number 20090026688
    • Publication date Jan 29, 2009
    • Ricoh Company, Limited
    • Yoshihisa Minakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Image forming apparatus capable of smoothly feeding large-size shee...
    • Publication number 20020093134
    • Publication date Jul 18, 2002
    • Yoshihisa Minakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Image forming apparatus
    • Publication number 20020060399
    • Publication date May 23, 2002
    • RICOH COMPANY, LTD.
    • Yoshihisa Minakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL