Patents by Inventor Tsuyoshi Iyama

Tsuyoshi Iyama 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: 5019001
    Abstract: In a method for manufacturing a liquid crystal display device, address and data lines are provided over a substrate, and a short-circuit area and an area to be made short-circuit are provided to cause short-circuiting between the address and data lines. It is prevented a TFT array from dielectric breakdown by static electricity in manufacturing processes, and examination is made for a connection breakage, and short-circuiting, at a TFT array for the liquid crystal display device, prior to the manufacturing step by cutting the short-circuit. Moreover, it can be presented from dielectric breakdown by static electricity in later processes to short the area to be made short-circuit after the examination. It is possible to both decrease a faults percentage of liquid crystal devices and improve their productivity.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: May 28, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masanori Abe, Yoshiaki Komatsubara, Tsuyoshi Iyama