Patents by Inventor Kouei Murayama

Kouei Murayama 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).

  • Surfactant
    Patent number: 8110707
    Abstract: A fatty acid salt of an alkyl quaternary ammonium is used as a novel surfactant which is a cationic surfactant having high detergency and low foaming property.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 7, 2012
    Assignees: Aisin AW Co., Ltd., Chuo Chemical Co., Ltd.
    Inventors: Toshiaki Iwase, Jun Kuroiwa, Masanori Yoshida, Katsuya Uenishi, Kouei Murayama
  • SURFACTANT
    Publication number: 20100191014
    Abstract: A fatty acid salt of an alkyl quaternary ammonium is used as a novel surfactant which is a cationic surfactant having high detergency and low foaming property.
    Type: Application
    Filed: December 12, 2008
    Publication date: July 29, 2010
    Applicant: AISIN AW CO., LTD
    Inventors: Toshiaki Iwase, Jun Kuroiwa, Masanori Yoshida, Katsuya Uenishi, Kouei Murayama