Patents by Inventor Kozo Mizuno

Kozo Mizuno 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
  • Pierce nut and a back-up die used in combination therewith
    Patent number: 4525912
    Abstract: A pierce nut has a plurality of projections which are integrally formed with a cylindrical body of the pierce nut. When the pierce nut is pressed against a metal sheet laid on a back-up die, an opening is formed in the metal sheet only by shearing force between the pierce nut and the back-up die, with no other force being used to press-break the metal sheet, and the projections are deformed by an annular bank portion of the back-up die at different portions thereof each time the back-up die is used. Thus, the use of the present pierce nut in combination with the present back-up die remarkably extends the life of the back-up die.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: July 2, 1985
    Assignee: Kabushiki Kaisha Aoyama Seisakusho
    Inventors: Hiroshi Kazino, Hiroshi Isomura, Kozo Mizuno