Patents by Inventor Shinobu Toma

Shinobu Toma 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).

  • Liquid crystal display device having an extention metal film wiring which is covered by polyimide layer having low viscosity under 1.0 poise before curing
    Patent number: 4826297
    Abstract: A liquid crystal display device comprising upper and lower substrates with electrodes on the inner surfaces thereof, at least one of said upper and lower substrates including an extended portion thereof which projects beyond the edge of the other substrate, liquid crystal material sandwiched between said upper and lower substrates, a sealing member disposed around the periphery enclosing said liquid crystal material, a driving integrated circuit chip mounted on the inner surface of said extended portion, metal film wiring formed on the inner surface of said extended portion mechanically and electrically connected to said driving integrated circuit chip via solder, polyimide resin coating covering said metal film wirings, and resin coating covering said polyimide resin for filling up pinholes in the polyimide resin coating and being of low viscosity before curing.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: May 2, 1989
    Assignees: Hitachi, Ltd., Hitachi Device Eng., Co.
    Inventors: Kiichirou Kubo, Mikio Kanazaki, Shinobu Toma