Patents by Inventor Kanji Tatsumi

Kanji Tatsumi 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).

  • Repeater and optical communication system
    Patent number: 7580641
    Abstract: Disclosed is a repeater including: a recognizing unit to recognize a destination address of an optical packet from the optical packet which includes the destination address assigned in unit of bit and a bit indicating whether or not a plurality of destination addresses are assigned; an optical splitting unit to split the optical packet into a plurality of optical packets; and selecting units to select transmission channels for the split optical packets on the basis of recognition results by the recognizing units, respectively.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: August 25, 2009
    Assignee: Yokogawa Electric Corporation
    Inventors: Hiroshi Shimizu, Katsuya Ikezawa, Akira Toyama, Yasukazu Akasaka, Kanji Tatsumi, Chie Sato, Hirotoshi Kodaka, Tadashige Fujita, Tsuyoshi Yakihara, Daisuke Hayashi, Masayuki Suehiro, Shinji Iio, Morio Wada, Akira Miura
  • Repeater and optical communication system
    Publication number: 20070047956
    Abstract: Disclosed is a repeater including: a recognizing unit to recognize a destination address of an optical packet from the optical packet which includes the destination address assigned in unit of bit and a bit indicating whether or not a plurality of destination addresses are assigned; an optical splitting unit to split the optical packet into a plurality of optical packets; and selecting units to select transmission channels for the split optical packets on the basis of recognition results by the recognizing units, respectively.
    Type: Application
    Filed: April 12, 2006
    Publication date: March 1, 2007
    Inventors: Hiroshi Shimizu, Katsuya Ikezawa, Akira Toyama, Yasukazu Akasaka, Kanji Tatsumi, Chie Sato, Hirotoshi Kodaka, Tadashige Fujita, Tsuyoshi Yakihara, Daisuke Hayashi, Masayuki Suehiro, Shinji Iio, Morio Wada, Akira Miura