Patents by Inventor Tatsuru Hasegawa

Tatsuru Hasegawa 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).

  • Shampoo containing a polyglycol-polyamine condensation resin and a phosphate ester
    Patent number: 4321256
    Abstract: An aqueous shampoo containing a hair conditioning agent comprises an alkyl sulfate or alkyl ether sulfate detergent, a polyglycol-polyamine condensation resin and a phosphate mono- or di-ester. The deposition onto hair of the polyglycol-polyamine condensation resin from the shampoo is enhanced by the presence of the phosphate esters.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: March 23, 1982
    Assignee: Lever Brothers Company
    Inventors: Tatsuru Hasegawa, Yasuo Ohmi, Guy A. G. Ricketts, Stuart J. Sime