Patents by Inventor Koichi Toba

Koichi Toba 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: 6158840
    Abstract: A cleaning blade which comes in elastic contact with a nozzle plate to clean a recording head is subjected to ink-receptive treatment on the surface thereof which comes in contact with the nozzle plate, such as formation of grooves or the like which can retain an ink by a capillary force. In this arrangement, an ink can be retained on the blade regardless of the rebounding of the blade shortly after the termination of cleaning operation, making it possible to prevent the ink from flying toward the recording head when the blade rebounds.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: December 12, 2000
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Kobayashi, Kazuhiko Hara, Koichi Toba
  • Patent number: 6024432
    Abstract: A sealing timer (25) for measuring the time in which the recording head (7) is sealed by the capping device (10); an opening timer (26) for measuring the time in which the recording head (7) is opened to the atmosphere; and a cleaning control means having a first cleaning mode in which a predetermined quantity of ink is sucked, a second cleaning mode in which a larger quantity of ink than the quantity of ink sucked in the first cleaning mode is sucked, and a third cleaning mode in which a quantity of ink substantially equal to the quantity of ink sucked in the second cleaning mode is divided into two portions and the two portions may be sucked at two separate times.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: February 15, 2000
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiharu Aruga, Kazunaga Suzuki, Koichi Toba
  • Patent number: 4945381
    Abstract: An image forming apparatus include a photosensitive medium having light sensitive microcapsules thereon which are pressed against a receiving medium in order to transfer a latent image from the photosensitive medium to a developed image on the receiving image. A pressure developing device is employed which generates a load only during that period when the image is being developed on the receiving medium. A detachable container includes a cartridge for storing unexposed photosensitive medium and a cassette for storing the receiving medium includes detectors for determining the size of the receiving medium. A thermal treatment mechanism fixes the images formed on the receiving medium and imparts a glossy finish.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: July 31, 1990
    Assignee: Seiko Epson Corporation
    Inventors: Kiyohiro Yamagata, Nobumasa Abe, Koichi Toba, Atsushi Kobayashi, Koji Watanabe
  • Patent number: D454363
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: March 12, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Seino, Satoshi Shinada, Koichi Toba
  • Patent number: D454364
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: March 12, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Seino, Satoshi Shinada, Koichi Toba
  • Patent number: D454908
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: March 26, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Seino, Satoshi Shinada, Koichi Toba
  • Patent number: D455780
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: April 16, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Seino, Satoshi Shinada, Koichi Toba