Patents by Inventor Kenji Hirasawa

Kenji Hirasawa 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: 6250552
    Abstract: A card reader includes a card insertion slot through which a card is inserted, a card transferring device which transfers the inserted card from the insertion slot along a card driving path, and a reading device along one point of the path for reading data stored on the card. The card may be a magnetic card or an IC card having an IC terminal thereon. The card reader also includes a pressing mechanism disposed between the card insertion slot and the reading device which presses against one edge of the card so that the opposite edge of the card is pressed against a card driving reference plane.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: June 26, 2001
    Assignee: Sankyo Seiki Mfg. Co., Ltd.
    Inventor: Kenji Hirasawa
  • Patent number: 5917177
    Abstract: An IC card reader comprises a card driving path through which a proximity IC card having a card side terminal as a non-contact type input/output terminal can be driven. The card side terminal is capable of providing and receiving electrical signals. A reader side terminal is positioned opposite the card side terminal at a stop position of the proximity IC card. The reader side terminal is capable of providing and receiving electrical signals for communication with the card side terminal. A card pressing member is provided opposite the reader side terminal, upon interposing the proximity IC card therebetween, for pressing the proximity card toward the reader side terminal. Other embodiments of the IC card reader are described.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: June 29, 1999
    Assignee: Sankyo Seiki Mfg. Co., Ltd.
    Inventors: Junji Owa, Kenji Hirasawa, Hideaki Osada
  • Patent number: 5850079
    Abstract: A card reading system comprises a card insertion portion, a shutter for preventing foreign matter insertion and the like, a driving path for direction of an inserted card and a main card reading device. The system includes, as an improvement, a detection device for determining a condition of the shutter during a card reading operation and for providing an output signal of the determination and a device responsive to the output signal for indicating that the shutter is in an improper condition when foreign matter is inserted in the driving path.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: December 15, 1998
    Assignee: Sankyo Seiki Mfg.Co., Ltd.
    Inventors: Junji Ohwa, Kenji Hirasawa
  • Patent number: 4985790
    Abstract: A biasing spring urges a lock member in a direction causing rollers to press a tape cartridge against reference surfaces of a tape drive device. An ejector lever retains the lock member in a cartridge processing release position. The ejector lever is shifted during cartridge insertion whereby the lock member moves to a second cartridge pressing position under the biasing spring to cause the rollers to press the tape cartridge against those reference surfaces.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: January 15, 1991
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Fumito Komatsu, Kenji Hirasawa