Patents by Inventor Hironobu Ichige

Hironobu Ichige 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).

  • Three dimensional display
    Patent number: 6252624
    Abstract: A three-dimensional display is provided with a display device alternatively displaying an image for the right eye and an image for the left eye in division of the images at predetermined time periods. A liquid crystal shutter disposed in front of the display device is operated in synchronization with image switching of the display device, and the image transmitted through the liquid crystal shutter is observed as a three-dimensional image through polarized glasses of which polarizing directions differ in the right and left from each other. The liquid crystal cell which serves as a liquid crystal shutter has a structure of a ferroelectric liquid crystal held between two sheets of resin film substrates and the ferroelectric liquid crystal contains more than 10 wt % of ferroelectric liquid crystal polymer so that it can respond to a large size display device and a high speed motion.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: June 26, 2001
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kimihiro Yuasa, Kento Okoshi, Hirofumi Kondo, Hironobu Ichige, Takeki Kofuji