Patents by Inventor Kousuke Fukami

Kousuke Fukami 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).

  • Covered electrode for arc welding
    Patent number: 4205218
    Abstract: A covered electrode for arc welding is disclosed which exhibits tight adhesion between the cover material and the core wire and provides good arc stability. This covered electrode comprises a core wire coated with a coating composition comprising (a) a powdered mixture of an inorganic oxide, carbonate and fluoride, (b) an alkali silicate and (c) 0.001 to 5.0% by weight of pullulan based on the alkali silicate.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: May 27, 1980
    Assignees: Sumitomo Chemical Company, Limited, Hayashibara Biochemical Laboratories, Inc.
    Inventors: Kousuke Fukami, Masanori Fujimoto, Fumio Fujita, Tsuneyuki Nagase
  • Ionic pullulan gels and production thereof
    Patent number: 4174440
    Abstract: A process for producing ionic pullulan gels which comprises gelation of pullulan by crosslinking and introduction of ionic groups into the resulting pullulan gel, the former comprising reacting pullulan with a bi-functional compound in a solvent in the presence of an alkaline substance, and the latter comprising reacting the resulting pullulan gel with a compound having a carboxyl, sulfonic, phosphoric or amino group in a solvent in the presence of an alkaline substance.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: November 13, 1979
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Fumio Fujita, Kousuke Fukami, Masanori Fujimoto, Tsuneyuki Nagase