Patents by Inventor Keiichi Deguchi

Keiichi Deguchi 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).

  • Patent number: 3951840
    Abstract: A bleaching composition comprising a chelating agent capable of forming a water-insoluble or hardly water-soluble chelate compound with copper and/or iron and an inorganic peroxide bleaching agent.
    Type: Grant
    Filed: April 18, 1974
    Date of Patent: April 20, 1976
    Assignee: Kao Soap Co., Ltd.
    Inventors: Takashi Fujino, Makoto Yamanaka, Keiichi Deguchi