Patents by Inventor Yoshihisa Minakawa

Yoshihisa Minakawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7901176
    Abstract: In a sheet supply/convey supporting device, a sheet placing unit includes a pair of guide members and a supporting plate that form a space for holding a sheet stack, and a carriage member supports the sheet placing unit and includes a driving mechanism for lifting or lowering the sheet placing unit. The supporting plate supports the sheet stack and is movable between an opened position at which a bottom of the space is opened and a closed position at which the bottom of the space is closed.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: March 8, 2011
    Assignee: Ricoh Company, Limited
    Inventor: Yoshihisa Minakawa
  • Publication number: 20090026688
    Abstract: In a sheet supply/convey supporting device, a sheet placing unit includes a pair of guide members and a supporting plate that form a space for holding a sheet stack, and a carriage member supports the sheet placing unit and includes a driving mechanism for lifting or lowering the sheet placing unit. The supporting plate supports the sheet stack and is movable between an opened position at which a bottom of the space is opened and a closed position at which the bottom of the space is closed.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Inventor: Yoshihisa Minakawa
  • Patent number: 6631867
    Abstract: An image forming apparatus of the type dealing with relatively wide documents of the present invention includes a generally L-shaped bar. The bar extends from one side of an apparatus body to a position above a document table and is angularly movable in the direction of width of the apparatus body. The bar includes a horizontal portion that includes a semicircular trough playing the role of a document guide. A document or documents are simply rolled up together and then put on the horizontal portion. The documents are pulled out of the horizontal portion one by one and inserted into the apparatus body.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: October 14, 2003
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshihisa Minakawa
  • Patent number: 6536645
    Abstract: An image forming apparatus including a scanner, which includes a guide member provided at an inlet of a clearance formed below a cover of the scanner. The guide member has a substantially pentagonal shape as viewed from the top, and may also include a notch formed in the top portion of the pentagon. The guide member also includes an edge portion curled in a semicircle in an upward direction that is arranged at both sides of the notch. Further, the curled edge portion is inclined from a center of the clearance toward an edge in a length direction. When an original document having a curled leading edge is fed to the scanner, a central portion of the curled leading edge of the original document is placed beneath the edge portion of the guide member.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: March 25, 2003
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshihisa Minakawa
  • Publication number: 20020093134
    Abstract: An image forming apparatus including a scanner, which includes a guide member provided at an inlet of a clearance formed below a cover of the scanner. The guide member has a substantially pentagonal shape as viewed from the top, and may also include a notch formed in the top portion of the pentagon. The guide member also includes an edge portion curled in a semicircle in an upward direction that is arranged at both sides of the notch. Further, the curled edge portion is inclined from a center of the clearance toward an edge in a length direction. When an original document having a curled leading edge is fed to the scanner, a central portion of the curled leading edge of the original document is placed beneath the edge portion of the guide member.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 18, 2002
    Inventor: Yoshihisa Minakawa
  • Publication number: 20020060399
    Abstract: An image forming apparatus of the type dealing with relatively wide documents of the present invention includes a generally L-shaped bar. The bar extends from one side of an apparatus body to a position above a document table and is angularly movable in the direction of width of the apparatus body. The bar includes a horizontal portion that includes a semicircular trough playing the role of a document guide. A document or documents are simply rolled up together and then put on the horizontal portion. The documents are pulled out of the horizontal portion one by one and inserted into the apparatus body.
    Type: Application
    Filed: August 20, 2001
    Publication date: May 23, 2002
    Applicant: Ricoh Company, Ltd.
    Inventor: Yoshihisa Minakawa
  • Patent number: D443886
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: June 19, 2001
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama
  • Patent number: D452874
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: January 8, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshihisa Minakawa, Taijirou Sueishi
  • Patent number: D521056
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: May 16, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Shigeru Horiguchi, Yoshihisa Minakawa, Tamaki Someya, Masateru Kohno, Kazuyoshi Yamada
  • Patent number: D580482
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 11, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Munakata, Aya Masuda, Masanao Takahashi, Yoshihisa Minakawa
  • Patent number: D494210
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: August 10, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohichi Watanabe, Yoshihisa Minakawa, Satoru Tohyama, Masanao Takahashi, Masateru Kohno
  • Patent number: D588188
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: March 10, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshihisa Minakawa, Yohichi Watanabe, Masanao Takahashi, Takeshi Kimura
  • Patent number: D595766
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 7, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Munakata, Aya Masuda, Masanao Takahashi, Yoshihisa Minakawa
  • Patent number: D425108
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: May 16, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama
  • Patent number: D426259
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: June 6, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama
  • Patent number: D426260
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: June 6, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama
  • Patent number: D428914
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: August 1, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama
  • Patent number: D429275
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: August 8, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama
  • Patent number: D429276
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: August 8, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama
  • Patent number: D432160
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: October 17, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Kabumoto, Kazuyoshi Yamada, Yoshihisa Minakawa, Taijiroh Sueishi, Goroh Katsuyama