Patents by Inventor Hisanobu Kuroda

Hisanobu Kuroda 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).

  • Durable hydrophilic fibers
    Patent number: 5087520
    Abstract: Fibers useful as surface materials for paper diaper, napkin for menstruation, etc. are provided, which fibers comprises a polyolefin or a polyester having a mixture of (A) a fatty acid diethanolamide, (B) a polyether-modified silicone, (C) a sorbitan fatty acid ester and (D) a metal salt of an alkylsulfonate in mixing proportions of (A): 30-60%, (B): 20-55%, (C): 10-25% and (D): 5-10%, each % by weight based on the mixture, adhered onto the surface of fibers comprising a polyolefin or a polyester, in 0.2-1.0% by weight based on the fibers.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: February 11, 1992
    Assignee: Chisso Corporation
    Inventors: Masayasu Suzuki, Hisanobu Kuroda