Patents by Inventor Eiichi Murakami

Eiichi Murakami 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).

  • Porous membrane
    Patent number: 4459210
    Abstract: A porous membrane which is composed of cellulose acetate and acrylic polymer, for example, poly(methyl methacrylate) or methyl acrylate-methyl methacrylate copolymer, is highly suitable for plasmapheresis. A polymer alloy consisting of cellulose acetate, acrylic polymer and a small amount of cellulose nitrate has a good spinnability to produce a hollow fiber type membrane and has an excellent biocompatibility.
    Type: Grant
    Filed: May 19, 1982
    Date of Patent: July 10, 1984
    Assignee: Teijin Limited
    Inventors: Eiichi Murakami, Ryozo Hasegawa, Kimihiko Matzuzawa