Patents by Inventor Yoshinori Uda

Yoshinori Uda 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 1,1-diphenylalkenes
    Patent number: 4892973
    Abstract: Disclosed herein is a novel process for producing 1,1-diphenylalkenes, comprising contacting lead peroxide with 1,1-diphenylalkanes having the structure wherein a nitrogen atom of a tertiary amino group is bonded to the para-position of each of the two benzene rings of the 1,1-diphenylalkane, thereby obtaining the corresponding 1,1-diphenylalkenes.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: January 9, 1990
    Assignee: Yamada Chemical Co., Ltd.
    Inventors: Kozo Mizuno, Hideaki Fujisaki, Yoshinori Uda, Tadashi Imai, Katsuhiko Tsunemitsu