Patents by Inventor Masakazu Kaneoya

Masakazu Kaneoya 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).

  • Optically active compounds and process for producing thereof
    Patent number: 4882451
    Abstract: The present invention provides optically active compounds and a process for producing the optically active compounds by a biochemical method in which specific compounds having hydroxyl or acyloxy groups are reacted with esters in the presence of hydrolase. The compounds have the following general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are selected from alkyl groups having 1-4 carbon atoms and phenyl groups, X is selected from a hydrogen atom and ##STR2## R is selected from alkyl groups having 1-20 carbon atoms, and C* indicates an asymmetric carbon atom.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: November 21, 1989
    Assignee: Chisso Corporation
    Inventors: Naoyuki Yoshida, Masakazu Kaneoya, Manabu Uchida