Patents by Inventor Toshihior Ishii

Toshihior Ishii 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).

  • OPTICAL SENSOR AND IMAGE FORMING APPARATUS
    Publication number: 20130216246
    Abstract: An optical sensor is disclosed. The optical sensor includes a light source in which a semiconductor laser having multiple light-emitting units is sealed with one resin member; a light source driving unit which causes the multiple light-emitting units to emit light; and at least one photodetector which detects a light amount of a light which is emitted from the multiple light-emitting units and is reflected from a subject.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 22, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Fumikazu Hoshi, Satoru Sugawara, Toshihior Ishii, Yoshihiro Oba