Patents by Inventor Yorihumi Otsubo

Yorihumi Otsubo 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).

  • Ticket checking apparatus
    Patent number: 4496830
    Abstract: An optical scanner produces an image signal corresponding to a shape of a ticket scanned by the optical scanner. Signal components corresponding to a given range of the ticket is extracted from an image signal of the optical scanner. A level of the signal components is compared with a reference level. Presence or not of a punch hole in the ticket is judged on the basis of the result of the comparison of the comparator.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: January 29, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Setsuo Yoshihara, Yorihumi Otsubo, Takashi Kobayashi