Patents by Inventor Hideki Obika

Hideki Obika 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).

  • Water soluble algin fibers and production thereof
    Patent number: 5585059
    Abstract: There is disclosed water soluble algin fibers and such fibers which have antibiotics immobilized thereto. The water soluble algin fibers are produced by extruding an aqueous dope which contains water soluble algin therein into a large quantity of a hydrophilic organic solvent exemplified by acetone. The water soluble algin fibers which have antibiotics immobilized thereto are produced in the same manner by using a dope containing antibiotics.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: December 17, 1996
    Assignees: Sakai Chemical Industry Co., Ltd., Agency of Industrial Science and Technology
    Inventors: Yoshinari Kobayashi, Hiroshi Kamishima, Satoshi Fukuoka, Hideki Obika, Tsutomu Asaoka, Keishi Tenma
  • Water soluble algin fibers and production thereof
    Patent number: 5474781
    Abstract: There is disclosed water soluble algin fibers and such fibers which have antibiotics immobilized thereto. The water soluble algin fibers are produced by extruding an aqueous dope which contains water soluble algin therein into a large quantity of a hydrophilic organic nonsolvent exemplified by acetone. The water soluble algin fibers which have antibiotics immobilized thereto are produced in the same manner by using a dope containing antibiotics.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: December 12, 1995
    Assignees: Sakai Chemical Industry Co., Ltd., Agency of Industrial Science & Technology
    Inventors: Yoshinari Kobayashi, Hiroshi Kamishima, Satoshi Fukuoka, Hideki Obika, Tsutomu Asaoka, Keishi Tenma