Patents by Inventor Yasuhiko Miyoshi

Yasuhiko Miyoshi 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).

  • Structural steel plate highly resistant to nitrate stress corrosion cracking
    Patent number: 4222772
    Abstract: Steel plates having excellent resistance to nitrate stress corrosion cracking often encountered in hot stoves, and high temperature heating furnaces, etc., and comprising:C: 0.005-0.11%;Si: 0.1-1.0%;Mn: 0.1-2.0%;P: not more than 0.025%;S: not more than 0.025%;Cr: 2-6%;Nb: 0.01%-7(C+N)%;Al: 0.01-0.20%;(C+N): not more than 0.06%;and optionally Mo: 0.1 to 1.5%, with the balance being essentially Fe and unavoidable impurities.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: September 16, 1980
    Assignee: Nippon Steel Corporation
    Inventors: Yasuo Sogo, Hiroki Masumoto, Kazunari Yamato, Yasuhiko Miyoshi, Tomomi Murata, Eiji Sato
  • Stainless steel products, such as sheets and pipes, having a surface layer with an excellent corrosion resistance and production methods therefor
    Patent number: 4175163
    Abstract: A stainless steel pipe having a surface layer with excellent resistance against vanadium pentoxide attack experienced upon boiler heating tubes for power generation, corrosion by sulfates, corrosion by chlorides experienced upon boiler heating tubes for various burning furnace and high-temperature gas corrosion experienced upon tubes for heating furnaces in the chemical industry, and also relates to methods for forming the surface layer.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: November 20, 1979
    Assignee: Nippon Steel Corporation
    Inventors: Teruo Ikeno, Satoshi Kado, Yasuo Otoguro, Yasuhiko Miyoshi, Chuichi Kato, Tadao Azami
  • Combined monitor screen digital disk recorder and electronic still camera
    Patent number: D394443
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: May 19, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryozo Hayashi, Masao Shimazu, Hirokazu Shibata, Daijiro Tokunaga, Yasuhiko Miyoshi