Patents by Inventor Hiroyuki Sakayori

Hiroyuki Sakayori 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).

  • Patent number: 4874461
    Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this structure, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: October 17, 1989
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masahiko Sato, Toshimitsu Konuma, Seiichi Odaka, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Kaoru Tabata, Chizuru Isigaki, Hiroyuki Sakayori, Ippei Kobayashi, Akio Osabe, Shunpei Yamazaki
  • Patent number: 4854675
    Abstract: An improved liquid crystal device for display is disclosed. The device is comprised of a pair of substrates on whose insides a number of electrode strips are formed in a matrix. The electrode strips are formed also near the periphery portions of the substrates which are unnecessary for the pixels of the display. By virtue of the excess electrode strips, joining the substrates can be done without special attention to the coincidence of the substrates.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: August 8, 1989
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Akira Mase, Hiroyuki Sakayori
  • Patent number: 4850680
    Abstract: An improved liquid crystal device is described such as a display. The device comprises a pair of substrates, a liquid crystal layer, an electrode arrangement, and a ferroelectric film. The ferroelectric film is formed on the inside of the substrate by spining method using a mixture of a ferroelectric material and an organic resin. When coating, the mixture is diluted with a solvent so that the ferroelectric film can be formed as a thin film. In advance of curring, the ferroelectric film is subjected to an electric field and its dipole moment is aligned and fixed in a direction perpendicular to the substrate. In virtue of the dipole moment, the liquid crystal device can be controlled by applying a voltage in one direction with a high stability.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: July 25, 1989
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shumpei Yamazaki, Masahiko Sato, Hiroyuki Sakayori
  • Patent number: 4786358
    Abstract: An improved method for forming a pattern on a substrate coated with a film is shown. The substrate is irradiated with a laser beam which is shaped through a mask, and a portion of the film is removed by the energy of the laser beam to produce the desired pattern. The laser beam is emitted from an exmer laser.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: November 22, 1988
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Akira Mase, Hiroyuki Sakayori