Patents by Inventor Yasushi Koike

Yasushi Koike 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: 5899613
    Abstract: The present invention provides an image recording apparatus with an image recording unit for recording an image on a recording medium, a first conveyor for conveying the recording medium to an image recording portion of the image recording unit while bending the recording medium along a drive convey roller by means of the drive convey roller, and a second conveyor for conveying an elongated recording medium having a plurality of pin holes to the first conveyor. A guide capable of changing a contact area between the recording medium and the drive convey roller at a curved portion of the recording medium along the drive convey roller is also provided.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: May 4, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Koike, Yoji Ara, Jun Katayanagi, Masaaki Kakizaki, Nozomu Nishiberi, Seiji Ogasawara
  • Patent number: 5880754
    Abstract: An ink jet recording apparatus for recording on a recording medium using an ink jet recording head that records by discharging ink from ink discharge ports thereof. The ink jet recording apparatus includes a carriage that carries the ink jet recording head and reciprocally moves the head in a manner such that the recording head is opposite the recording medium, and the carriage includes a temperature stabilization portion contactable with the ink jet recording head carried on the carriage, wherein the temperature stabilization portion radiates heat generated by the ink jet recording head.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: March 9, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeji Niikura, Yoji Ara, Tsutomu Shimada, Shoichi Kan, Masaaki Kakizaki, Nozomu Nishiberi, Yasushi Koike, Seiji Ogasawara
  • Patent number: 5870127
    Abstract: A recording apparatus which includes a first and second discharge members located downstream from a recording head for discharging a sheet, and first and second auxiliary discharge members also located downstream from the recording head for discharging the sheet, where the first and second auxiliary discharge members are urged against the first and second discharge members, respectively, at a first position, and where the first auxiliary discharge member is substantially urged against the second discharge member at a second position.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: February 9, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Koike, Nozomu Nishiberi
  • Patent number: 5576744
    Abstract: A recording apparatus for recording information with a recording head having a plurality of recording elements while keeping a designated distance between the recording head and a recording medium has an information acquisition device for acquiring distance information between the plurality of recording elements and the recording medium, a correction device for providing a correction value for a recording timing for each recording element of the recording head in accordance with the distance information acquired by the information acquisition device, and a control device for controlling the recording head to record at a timing corrected with the correction value provided by the correction device.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: November 19, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeji Niikura, Masasumi Nagashima, Yasushi Koike
  • Patent number: 5018655
    Abstract: A paper feed for a printer includes a frame, a platen rotatably mounted on the frame, a friction roller support juxtaposed to the platen, a spring mounted on the frame and having a first operable condition biasing the friction roller support toward the platen with a first biasing force and having a second operable condition biasing the friction roller support toward the platen with a second biasing force less than the first biasing force, and a cam rotatably mounted on the frame and operable between first and second operable positions to effect disposition of the spring in said first and second operating conditions.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: May 28, 1991
    Assignee: Seikosha Co., Ltd.
    Inventors: Yasushi Koike, Akio Tajima
  • Patent number: 4979837
    Abstract: A paper tractor comprising a driven sprocket wheel engaging recording paper to feed same, a chassis holding the sprocket wheel on its both sides and movable widthwise of recording paper, a fixed member supporting the chassis slidably via an engaging portion formed at one end thereof and extending widthwise of the recording paper, and a locking lever provided swingable at one end of the chassis and having a locking cam engageable with part of the fixed member. The locking cam including a first cam face for restricting the movement of the chassis by engaging part of the fixed member when the locking lever is swung to a locking position, and a second cam face for allowing the chassis to move opposite to part of the fixed member in virtually non-engaged relationship thereto when the locking lever is swung to its released position.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: December 25, 1990
    Assignee: Seikosha Co., Ltd.
    Inventor: Yasushi Koike