Patents by Inventor Hirohito Mukaiyama

Hirohito Mukaiyama 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).

  • Paper feed method and apparatus
    Patent number: 6224051
    Abstract: It is an object of the present invention to prevent a sheet of continuous-form paper from slackening when it is fed back in a printer capable of feeding both sheets of continuous-form paper and cut-form paper.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: May 1, 2001
    Assignee: PFU Limited
    Inventors: Takumi Nakayama, Hironaga Hongawa, Masashi Matsumoto, Hirohito Mukaiyama, Hitoshi Asai, Mitsuru Shimono, Satoshi Sakai, Yasuhiro Matsue
  • Paper feed method and apparatus for a printer
    Patent number: 6089564
    Abstract: A paper feed unit having a paper tray or hopper where recesses or windows are formed on a bottom surface of the tray upon which the sheets of paper will rest. The recesses are at positions which can correspond to the positions of a plurality of roller pieces mounted on a roller shaft thereabove. The recesses enable the pressing force of each roller piece of the roller against the upper surface of the uppermost sheet of paper to be uniform.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: July 18, 2000
    Assignee: PFU Limited
    Inventors: Masashi Matsumoto, Hirohito Mukaiyama
  • Paper feed method and apparatus for a printer
    Patent number: 5848847
    Abstract: It is an object of the present invention to prevent a sheet of continuous-form paper from slackening when it is fed back in a printer capable of feeding both sheets of continuous-form paper and cut-form paper.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: December 15, 1998
    Assignee: PFU Limited
    Inventors: Takumi Nakayama, Hironaga Hongawa, Masashi Matsumoto, Hirohito Mukaiyama, Hitoshi Asai, Mitsuru Shimono, Satoshi Sakai, Yasuhiro Matsue
  • Paper feed method and apparatus for a printer
    Patent number: 5713674
    Abstract: It is an object of the invention to prevent a sheet of continuous-form paper from slackening when it is fed back in a printer capable of feeding both sheets of continuous-form paper and cut-form paper.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: February 3, 1998
    Assignee: PFU Limited
    Inventors: Takumi Nakayama, Hironaga Hongawa, Masashi Matsumoto, Hirohito Mukaiyama, Hitoshi Asai, Mitsuru Shimono, Satoshi Sakai, Yasuhiro Matsue