Patents by Inventor Kiyomitsu Kawasaki

Kiyomitsu Kawasaki 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).

  • Slowly releasing perfume compositions
    Patent number: 4492644
    Abstract: A slowly releasing perfume composition is obtained by mixing a granulated ethylene-vinyl acetate copolymer and a perfume which contains hydrocarbons and/or esters as an essential fragrant component, at a temperature in the range of about 10.degree. C. to about 50.degree. C.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: January 8, 1985
    Assignee: Soda Aoromatic Company, Limited
    Inventors: Yuuichi Matsumoto, Kiyomitsu Kawasaki, Masato Ishitani