Patents by Inventor Hidetaka Uraoka

Hidetaka Uraoka 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).

  • Powered metal injection compacting composition
    Patent number: 6159265
    Abstract: The object is to provide a powdered metal injection compacting composition adapted to give compacts free from deformation, cracking or blistering without being compromised in compactability or debinder characteristic and without the aid of a special jig.This composition comprises a metal powder and an organic binder comprising (A) a crystalline resin having a melting point of not less than 150.degree. C., (B) an organic compound the weight loss on heating of which begins at a temperature below 150.degree. C. and (C) a composite acrylic resin, the composite acrylic resin mentioned above being a resin obtainable by dispersing a solution comprising the following components (C1).about.(C3) in an aqueous medium containing a dispersant and carrying out a suspension polymerization reaction:(C1) an ethylene-vinyl acetate copolymer or an ethylene-ethyl acrylate copolymer,(C2) a (meth)acrylic ester monomer or a mixture of a (meth)acrylic ester monomer and a styrenic monomer, and(C3) a polymerization initiator.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: December 12, 2000
    Assignees: Dai-Ichi Kogyo Seiyaku Co., Ltd., Dai-Ichi Ceramo Ltd.
    Inventors: Hiromitsu Kinoshita, Tetsuo Shiraiwa, Hidetaka Uraoka, Nobuo Ochiai