Patents by Inventor Atsuhiko Tsujimura

Atsuhiko Tsujimura 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 preparing optically active 3-phenylglycidic acid esters
    Patent number: 5244803
    Abstract: There is disclosed a process for preparing optically active 3-phenylglycidic acid ester compound, which comprises permitting a culture broth, cells or treated cells of a microorganism having an ability of stereoselectively hydrolyzing a (2R, 3S)-3-phenylglycidic acid ester compound to act on a racemic 3-phenylglycidic acid ester compound which may also have a substituent on the phenyl group, thereby hydrolyzing the (2R, 3S) optically active isomer and separating and collecting the (2S, 3R) antipode from the reaction mixture.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: September 14, 1993
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Takao Mori, Toshiyuki Furutani, Akio Nakao, Atsuhiko Tsujimura, Takeji Shibatani