Patents by Inventor Syotaro Ohno

Syotaro Ohno 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).

  • Process for separating plasma albumin
    Patent number: 4522725
    Abstract: Plasma albumin is separated by a crude albumin fraction from blood plasma by a rough fractional separation and then separating plasma albumin through an ultrafiltration membrane. The ultrafiltration membrane is a membrane made of a polysulfone resin having the formula ##STR1## (n=50 to 250).
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: June 11, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kenji Koyama, Syotaro Ohno, Mitsutoshi Fukuda
  • Method for manufacturing block copolymer
    Patent number: 4365023
    Abstract: A ternary block copolymer and a method for manufacturing it. The copolymer has a molecular structure consisting of a macro-molecule having a cation exchange group, a macro-molecule having an anion exchange group and another macro-molecule which does not have any ion exchange group. These macro-molecules are linked together into a straight chain.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: December 21, 1982
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Teruo Fujimoto, Mitsuru Nagasawa, Syotaro Ohno
  • Process for separating .gamma.-globulin aggregate by polysulfone membrane
    Patent number: 4333870
    Abstract: .gamma.-Globulin aggregate is separated by a membrane from an aqueous solution of .gamma.-globulin through an ultrafiltration membrane.
    Type: Grant
    Filed: September 17, 1980
    Date of Patent: June 8, 1982
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kenji Koyama, Syotaro Ohno, Mitsutoshi Fukuda
  • Porous synthetic resin film
    Patent number: 4096099
    Abstract: A porous synthetic resin film which comprises fine cylindrical holes of from 70 to 2,000 A in diameter which are formed by removing the fine cylindrical component of an AB-type or an ABA-type block copolymer.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: June 20, 1978
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kenji Koyama, Syotaro Ohno