Patents by Inventor Fumio Sagami

Fumio Sagami 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).

  • Conjugate of prostaglandin and polysaccharide
    Patent number: 5120719
    Abstract: A conjugate formed by the covalent bonding of a prostaglandin or a similar compound thereto and a polysaccharide. The prostaglandin is selected from prostaglandin E1, prostaglandin E2, prostaglandin F2.alpha., prostaglandin I2, carbacycline and iloprost and the polysaccharide is selected from pluran, amylose, amylopectin, cellulose, dextran and hydroxyethylated starch.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: June 9, 1992
    Assignee: Eisai Co., Ltd.
    Inventors: Kiyoshi Iwamoto, Masahiro Kawahara, Sumio Watanabe, Yasuo Miyake, Fumio Sagami