Patents by Inventor Takeyoshi Katoh

Takeyoshi Katoh 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).

  • Thin Film Transistor, Wiring Board and Methods of Manufacturing the Same
    Publication number: 20080217617
    Abstract: A gate electrode or a gate wiring of a thin-film transistor has a four-layer structure including an adhesive base layer, a catalyst layer, a wiring metal layer, and a wiring metal anti-diffusion layer which are laminated in this order. With this structure, adhesion and flatness are improved. In this case, the adhesive base layer is formed by a resin having a structure capable of coordinating to a metal. Hence, adhesion with an insulating substrate can be improved. Further, the wiring metal anti-diffusion layer is formed on the wiring metal layer, so that diffusion of a wiring metal can be inhibited. Thus, characteristics of the thin-film transistor can be improved.
    Type: Application
    Filed: July 5, 2006
    Publication date: September 11, 2008
    Applicant: ZEON CORPORATION
    Inventors: Shigetoshi Sugawa, Akihiro Morimoto, Makoto Fujimura, Takeyoshi Katoh, Masahiko Chiba, Tomoyo Hirayama