Patents by Inventor Hideo Chiba

Hideo Chiba 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).

  • Flexible fluid transport pipe having hydrogen-induced cracking resistant high-strength steel
    Patent number: 5117874
    Abstract: High-strength steel having excellent hydrogen-induced crack resistance, particularly in an environment of wet hydrogen sulfide and wires made thereof and their assembly, steel pipes, steel bands and shielding wires for marine cable are disclosed. This steel contains 0.40 to 0.70% of C, 0.1 to 1% of Si, 0.2 to 1% of Mn, up to 0.25% of P and up to 0.010% of S, and further, if necessary, 0.008 to 0.050% of Al and the balance of Fe and unavoidable impurities, and has a spheroidized structure. In addition, a flexible sour fluid transport pipe made of the high-strength steel band having the above-described composition and a tensile strength of 50 to 80 kg/mm.sub.2 is also disclosed.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: June 2, 1992
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Ikuo Ochiai, Hideaki Omori, Manjiro Sato, Masatsugu Murao, Kazuhiko Murao, Hideo Chiba, Tsuneo Okamoto, Tadashi Fuku
  • Process for producing erythropoietin
    Patent number: 4465624
    Abstract: Disclosed herein is a process for producing erythropoietin, comprising bringing a material containing erythropoietin into contact with an adsorbent having a monoclonal anti-erythropoietin antibody, adsorbing erythropoietin on the adsorbent, and eluting the absorbed erythropoietin from the adsorbent.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: August 14, 1984
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Hideo Chiba, Ryuzo Sasaki, Masatsugu Ueda
  • Enzymatic improvement of protein flavor
    Patent number: 4232044
    Abstract: Food protein flavor is improved by enzymatic conversion of the aldehydes and alcohols in such protein.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: November 4, 1980
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hideo Chiba, Ryuzo Sasaki, Masaaki Yoshikawa, Naofumi Takahashi, Etsuro Sugimoto, Hirotoshi Samejima