Patents by Inventor Tsugio Sonobe

Tsugio Sonobe 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: 4896941
    Abstract: An image-transmitting fiber includes at least one first fiber element for transmitting light power therethrough, and a plurality of second fiber elements disposed around and extending along the first fiber element. The second fiber elements cooperates with one another for transmitting an image of an object therethrough. The first fiber element is greater in diameter than each of the second fiber elements.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: January 30, 1990
    Assignees: Doryokuro Kakunenryo Kaihatsu Jigyodan, Fujikura Ltd.
    Inventors: Shotaro Hayashi, Tsugio Sonobe, Kiyonori Ishii, Kazuo Sanada, Sadao Chigira, Takashi Tsumanuma, Osamu Fukuda