Patents by Inventor Hiroko Yoshimura

Hiroko Yoshimura 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: 5473023
    Abstract: A highly water-absorptive fiber formed of a copolymer containing:(a) polymer units from a vinyl monomer having a carboxyl group, some of the carboxyl groups of the polymer units being converted to a Na salt and/or K salt, and(b) polymer units from monomers such as a vinyl monomer having an amino group and a vinyl monomer having a hydroxyl group and an amino group. This highly water-absorptive fiber has high water absorption properties, has almost free from coloring, is excellent physiological saline solution absorption properties and can be produced under usual carding and spinning conditions.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: December 5, 1995
    Assignee: Kanebo, Ltd.
    Inventors: Yoshikatsu Mizukami, Tsutomu Teshima, Katsumi Agari, Yutaka Tanaka, Hiroko Fukumoto, Miyako Kakegawa, Hiroko Yoshimura