Patents by Inventor Shigetsugu Sugiura

Shigetsugu Sugiura 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).

  • Detergent composition containing novel bleaching agent
    Patent number: 3979312
    Abstract: A neutral detergent composition containing a bleaching agent having the formula:4Na.sub.2 SO.sub.4.2H.sub.2 O.sub.2.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: September 7, 1976
    Assignees: Kao Soap Co., Ltd., Nippon Peroxide Co., Ltd.
    Inventors: Yunosuke Nakagawa, Shigetsugu Sugiura, Kinjiro Matsunaga, Yoshio Ito
  • Bleaching composition
    Patent number: 3979313
    Abstract: A bleaching composition comprising a hydrogen peroxide adduct having the formula:4Na.sub.2 SO.sub.4.sup.. 2H.sub.2 O.sub.2.sup.. NaCland an activating agent.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: September 7, 1976
    Assignees: Kao Soap Co., Ltd., Nippon Peroxide Co., Ltd.
    Inventors: Yunosuke Nakagawa, Shigetsugu Sugiura, Kinjiro Matsunaga, Yoshio Ito