Patents by Inventor Hiroi Takahiko

Hiroi Takahiko 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).

  • Method of preparing or rubbing a substrate to be used in a LCD device by spraying it with uniformly sized droplets or frozen water
    Patent number: 5114748
    Abstract: A method in which a liquid is sprayed through a nozzle to form minute droplets of substantially uniform size. These uniform droplets are sprayed into and frozen by a refrigeration medium, such as liquid nitrogen, to form uniform diameter frozen particles. The frozen particles are ejected onto the surface of a substrate used in a liquid crystal display device to orient the liquid crystal material applied to the surface.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: May 19, 1992
    Assignees: Taiyo Sanso Co. Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masuo Tada, Hiroi Takahiko, Takaaki Fukumoto, Toshiaki Ohmori, Itaru Kanno