Patents by Inventor Naoyuki Sekiya

Naoyuki Sekiya 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).

  • Fish sex discrimination equipment and method
    Patent number: 5013906
    Abstract: Fish sex discrimination equipment and method comprising an automatic supplying unit, a light projection and reception detection unit, a discrimination control unit, a discharge unit, and a first conveyor and a second conveyor, and also comprising the steps of automatically supplying fish to be discriminated, transmitting light to a genital gland area of the fish, scanning the light, discriminating the sex of the fish based on the quantity of light tramsmitted, for example, a mean value or integrated value, and discharging the fish through the first or second conveyor which corresponds to the sex of the fish.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: May 7, 1991
    Assignee: Fujitsu Automation Limited
    Inventors: Tatsuo Miyakawa, Osamu Kato, Yusuke Koike, Keisuke Matsunami, Naoyuki Sekiya