Patents by Inventor Haruo Sudo

Haruo Sudo 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).

  • Fiber optic mixing device
    Patent number: 5058975
    Abstract: A plurality of optical fibers each introducing an optical signal are connected to a side surface of a fluorescent optical fiber. In response to a light beam provided from the optical fiber, fluorescent light is generated in the fluorescent optical fiber. The fluorescent light is transmitted through the fluorescent optical fiber and detected by a photodetector disposed on at least one end face of the fluorescent optical fiber. An output electric signal from the photodetector represents a mixing result of the optical signals introduced by the plurality of optical fibers.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: October 22, 1991
    Assignee: Asahi Kogaku Kogyo K.K.
    Inventor: Haruo Sudo