Patents by Inventor Eiichi Sumita

Eiichi Sumita 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).

  • Polycarbonate/polyolefin based resin compositions and their production processes and uses
    Patent number: 5847041
    Abstract: This invention provides the following resin composition, method for producing the composition, resin slide material, organic solvent resist material and glass fiber reinforced composition obtained therefrom. A polycarbonate/polyolefin based resin composition exhibiting an improved polycarbonate/polyolefin compatibility prepared by melt kneadin (A) a polycarbonate resin; (B) a polyolefin resin; (C) a polyolefin resin that has been modified with at least one functional group selected from the group consisting of epoxy, carboxyl, and an acid anhydride groups; (D) a compound represented by the formula: HOOC--R--NH.sub.2 wherein R represents at least one member selected from the group consisting of an alkene group, an alkylidene group, and an oligomethylene group containing 5 or more carbon atoms, and phenylene group and naphthylene group optionally substituted with an alkyl group; and optionally, (E) a styrene copolymer resin.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: December 8, 1998
    Assignee: Kawasaki Steel Corporation
    Inventors: Kazuya Takemura, Masahiko Kajioka, Kazumichi Sashi, Shigeru Takano, Eiichi Sumita
  • Polycarbonate/polyolefin based resin compositions and their production processes and uses
    Patent number: 5594062
    Abstract: This invention provides the following resin composition, method for producing the composition, resin slide material, organic solvent resist material and glass fiber reinforced composition obtained therefrom. A polycarbonate/polyolefin based resin composition exhibiting an improved polycarbonate/polyolefin compatibility prepared by melt kneadin (A) a polycarbonate resin; (B) a polyolefin resin; (C) a polyolefin resin that has been modified with at least one functional group selected from the group consisting of epoxy, carboxyl, and an acid anhydride groups; (D) a compound represented by the formula: HOOC--R--NH.sub.2 wherein R represents at lease one member selected from the group consisting of an alkene group, an alkylidene group, and an oligmethylene group containing 5 or more carbon atoms, and phenylene group and naphthylene group optionally substituted with an alkyl group; and optionally, (E) a styrene copolymer resin.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: January 14, 1997
    Assignee: Kawasaki Steel Corporation
    Inventors: Kazuya Takemura, Masahiko Kajioka, Kazumichi Sashi, Shigeru Takano, Eiichi Sumita