Patents by Inventor Takayoshi Inokuchi

Takayoshi Inokuchi 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).

  • Television picture tube inner shielding material having a blackened layer of superior adhesion and method of manufacturing the same
    Patent number: 5094920
    Abstract: An inner shielding material and a method of manufacturing the same, wherein the material comprises a steel sheet 0.10 to 0.25 mm thick of a composition of .ltoreq.0.005% C, .ltoreq.2.0% Si, .ltoreq.0.4% P, 0.1 to 1.0% Mn, 0.01% S, .ltoreq.0.01% sol.Al, .ltoreq.0.01% N and the balance Fe and residual impurities, having a hardness H.sub.v (500 g) of 90 or greater and a grain size of 7 or less when measured by ferrite grain size; and a blackened layer on the surface of the steel sheet comprising primarily FeO formed by transformation of Fe.sub.3 O.sub.4 and having superior adhesion.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: March 10, 1992
    Assignee: Nippon Steel Corporation
    Inventors: Morio Shiozaki, Takayoshi Inokuchi, Masahiko Oda, Takahide Shimazu, Kazuo Nishiura