Patents by Inventor Sumiko Watanabe

Sumiko Watanabe 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).

  • Engine block structure in multi-cylinder engine
    Patent number: 6158402
    Abstract: In an engine block structure in a multi-cylinder engine in which a piston is incorporated from the side of a crank chamber into each of a plurality of cylinders disposed in series in a cylinder block, cylinder axes of the two adjacent cylinders are disposed to extend in such directions that they are gradually spaced apart from each other as proceeding from the side of a valve operating chamber toward the crank chamber as viewed from a direction of arrangement of the cylinders. Thus, a sufficient crankshaft bearing area can be ensured without bringing an increase in number of parts and an increase in size of the engine block.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: December 12, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takashi Taguchi, Sigemi Kobayashi, Toshinari Sonoda, Atsushi Iwamoto, Hirokazu Osaki, Shigemasa Kajiwara, Shigekazu Tanaka, Kazuo Shibata, Masashi Murata, Masahiko Tashiro, Sumiko Watanabe, Kazuhisa Ishizuka
  • Antibacterial articles and methods of producing the articles
    Patent number: 5759844
    Abstract: An antibacterial article inhibits the proliferation of microorganisms on the surface of food. The antibacterial article includes a substrate, such as a nonwoven material, on which is adsorbed .epsilon.-polylysine. The article is produced by applying an aqueous or alcoholic solution of .epsilon.-polylysine to the substrate by spraying or immersion.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: June 2, 1998
    Assignee: Chisso Corporation
    Inventors: Jun Hiraki, Sumiko Watanabe, Masamichi Muto