Patents by Inventor Seiji TADACHI

Seiji TADACHI 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).

  • Having a light control unit
    Patent number: 8480236
    Abstract: A projector includes: an illumination system which has a light source, and a light control unit opened and closed to shield a part of light emitted from the light source; a light modulation device illuminated by illumination light received from the illumination system; an air supply device which supplies air to the light control unit and the light modulation device; and an air supply control unit which decreases an air supply amount to the light modulation device when increasing an air supply amount to the light control unit in accordance with a relatively closed condition of the light control unit.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 9, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Seiji Tadachi
  • PROJECTOR
    Publication number: 20110234990
    Abstract: A projector includes: an illumination system which has a light source, and a light control unit opened and closed to shield a part of light emitted from the light source; a light modulation device illuminated by illumination light received from the illumination system; an air supply device which supplies air to the light control unit and the light modulation device; and an air supply control unit which decreases an air supply amount to the light modulation device when increasing an air supply amount to the light control unit in accordance with a relatively closed condition of the light control unit.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 29, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Seiji TADACHI