Patents by Inventor Hirokazu Ono

Hirokazu Ono 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).

  • Ferro-electric liquid-crystal panel having a chiral-nematic mesophase in a phase translation system
    Patent number: 5093742
    Abstract: A ferro-electric liquid-crystal panel comprises two substrates with electrodes and alignment layers which face one another, and a ferro-electric liquid-crystal sealed therebetween to align the molecules thereof in a homogeneous fashion. The alignment direction of one of the alignment layers is twisted at an angle between 110 and 150 degrees relative to that of the other alignment layer. The direction of twist defined by the alignment layer, as viewed in front, is opposite to the twist direction of the liquid-crystal molecules in chiral-nematic mesophase.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: March 3, 1992
    Assignee: Seikosha Co., Ltd.
    Inventors: Shinichi Okamoto, Hirokazu Ono, Masanori Fujita