Patents by Inventor Motoko Baba

Motoko Baba 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 producing secretory immunoglobulin A preparations
    Patent number: 5371196
    Abstract: Secretory immunoglobulin A preparations substantially not containing virus are produced by a process wherein secretory immunoglobulin A which might be contaminated with viruses is (1) heated about 60.degree. C. for about 10 hours, or (2) subjected to the reaction with tri-n-butyl phosphate and a surfactant and the heating as mentioned above, as liquidized form in an aqueous medium, and then polymerized matters are precipitated from the resulting solution by adding polyethyleneglycol thereto.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: December 6, 1994
    Assignee: JCR Pharmaceuticals Co., Ltd.
    Inventors: Yoshikazu Yuki, Motoko Baba, Mitsuo Shimizu, Kazuo Kato, Hajime Hiratani