Patents by Inventor Toshiyuki Teshirogi

Toshiyuki Teshirogi 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: 5894360
    Abstract: A full-color liquid crystal display which is simple in construction and low in costs, also providing high quality of display performance. The liquid crystal display has a color filter substrate, an opposing substrate, and a liquid crystal charged between both the substrates. The color filter substrate includes a transparent substrate. A transparent electrode is mounted on one surface of the transparent substrate. A color filter is electro-deposited on the transparent electrode. A light-shielding film is formed in clearances provided for the color filter. An inorganic dielectric film is mounted on the surfaces of the color filter and the light-shielding film. A transparent electrode film is deposited on the dielectric film. On the other hand, the opposing substrate is constructed of a transparent substrate and a transparent electrode adhering to one surface of the substrate. As the liquid crystal, a nematic liquid crystal whose molecular longer axis is progressively twisted at 90.degree.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: April 13, 1999
    Assignee: Alps Electric Co., Ltd.
    Inventor: Toshiyuki Teshirogi
  • Patent number: 5853924
    Abstract: A color filter is manufactured in the steps described below.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: December 29, 1998
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsutoshi Uwami, Toshiyuki Teshirogi, Hideharu Watanabe, Tatsuya Moriike
  • Patent number: 4883343
    Abstract: A liquid crystal display element having a liquid crystal cell formed by bonding a pair of transparent substrates, and a polarizing plate disposed at least outside of the transparent substrate of display surface comprising a Cr.sub.2 O.sub.3 thin film formed 300 to 1000 Angstroms thick on the outer surface of the transparent substrate of the display surface. Thus, the liquid crystal display element can effectively prevent a dazzlement due to the reflection of an external light on the surface of a transparent substrate of display surface side.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: November 28, 1989
    Assignee: Alps Electric Co., Ltd.
    Inventor: Toshiyuki Teshirogi