Patents by Inventor Hisashi Iizuka

Hisashi Iizuka 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).

  • SLEEP CONTROL DEVICE AND CONTROL METHOD THEREFOR
    Publication number: 20110021866
    Abstract: A drowsiness level detection section detects a drowsiness level of an individual person. A sleep depth level control section controls the sleep depth of the individual person based on the detected drowsiness level. The sleep depth level control section executes a first sleep control, in which the sleep depth level of the individual person is maintained at a predetermined sleep depth level below a maximum sleep depth level, if the detected drowsiness level is equal to or below a predetermined threshold.
    Type: Application
    Filed: March 6, 2009
    Publication date: January 27, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hisashi Iizuka, Hiroki Okamura