Patents by Inventor Kiyotsugu Isaka

Kiyotsugu Isaka 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).

  • Antibody against rat postacrosome reaction sperm and utilization thereof
    Patent number: 6844164
    Abstract: An antibody biding specifically to rat's acrosome reacted sperm is produced and hybridomas (FARS-91 and FARS-92 strains) capable of stably proliferating are obtained by fusing mouse spleen cells having a high antibody titer against rat's acrosome reacted sperm with mouse-origin myeloma cells and screening fused cells reacting strongly with rat's acrosome reacted sperm. From these hybridomas, monoclonal antibodies selectively binding to rat's acrosome reacted sperm can be obtained. Thus, a diagnostic method for evaluating fertility of rat's spermatozoa is presented.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: January 18, 2005
    Assignee: FUSO Pharmaceutical Industries, Ltd.
    Inventors: Yoshihiro Kuwahara, Michinori Hasegawa, Kiyotsugu Isaka, Hiromasa Araki