Patents by Inventor Keizo Tanimura

Keizo Tanimura 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).

  • Polyacetal resin composition
    Patent number: 4596847
    Abstract: A polyacetal resin composition is provided which has improved antistatic, heat stability and mechanical properties and contains a polyacetal homopolymer or copolymer, carbon black and a nonionic surfactant which is a polypropylene glycol/polyethylene glycol ether copolymer.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: June 24, 1986
    Assignee: Polyplastics Co., Ltd.
    Inventors: Takuzo Kasuga, Yukio Ikenaga, Masami Yamawaki, Keizo Tanimura
  • Polyacetal resin composition
    Patent number: 4559380
    Abstract: A polyacetal composition which comprises polyacetal, an aliphatic ester of a polyhydric alcohol having a hydroxy group, polyethylene glycol, and an organometallic salt, wherein the organometallic salt is present in an amount of from 0.01 to 5 percent by weight based on the total composition.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: December 17, 1985
    Assignee: Polyplastics Company, Ltd.
    Inventors: Takuzo Kasuga, Yukio Ikenaga, Masami Yamawaki, Keizo Tanimura