Patents by Inventor Takaaki Horita

Takaaki Horita 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).

  • Substrate for thin film electroluminescent display panel
    Patent number: 4731958
    Abstract: A glass substrate for supporting an electroluminescent (EL) display element comprising two dielectric layers defining a thin film EL layer, and two electrode layers, attached to each of the two dielectric layers is characterized by being composed of barosilicic acid without hydrolytic products thereon. A method for preparing such a glass substrate comprises the steps of preparing a glass substrate composed of borosilic acid, grinding a surface of the glass substrate, and cleaning the surface of the glass substrate without soaking it in an acidic solution, so that the glass substrate is free from formed hydrolytic products on the surface.
    Type: Grant
    Filed: January 14, 1986
    Date of Patent: March 22, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Kishishita, Etsuo Mizukami, Yoshihiro Endo, Takaaki Horita, Hisashi Uede