Patents by Inventor Yasumasa Ishida

Yasumasa Ishida 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).

  • Peptide related to human programmed cell death and DNA encoding the same
    Patent number: 5698520
    Abstract: A membrane protein related to human programmed cell death (PD-1) and DNA encoding the said protein is provided. PD-1 protein may be useful for the treatment of various infections, immunological depression or acceleration, or tumors etc.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 16, 1997
    Assignees: Ono Pharmaceutical Co., Ltd., Tasuku Honjo
    Inventors: Tasuku Honjo, Yasumasa Ishida, Takashi Shinohara
  • Peptide related to human programmed cell death and DNA encoding it
    Patent number: 5629204
    Abstract: A membrane protein related to human programmed cell death (PD-1) and DNA encoding the said protein is provided. PD-1 protein may be useful for the treatment of various infections, immunological depression or acceleration, or tumors etc.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: May 13, 1997
    Assignees: Ono Pharmaceutical Co., Ltd., Tasuku Honjo
    Inventors: Tasuku Honjo, Yasumasa Ishida, Takashi Shinohara
  • Method and apparatus for diagnosing abnormal state of sodium (NA)--sulfur (S) cell
    Patent number: 4881026
    Abstract: Disclosed is a method and apparatus which can detect progress of degradation of a sodium-sulfur cell and predict possibility of final breakdown of the cell in a very near future before such a final breakdown of the cell actually occurs. The method and apparatus for diagnosing the presence or absence of an abnormal state in the sodium-sulfur cell, containing a porous electrical conductive material impregnated with molten sulfur or sodium polysulfide as its positive electrode reactant and containing sodium as its negative electrode reactant, comprises observing the operating voltage of the cell during charging and discharging so as to detect occurrence of a minute ripple in the operating voltage, and, when the amplitude of the ripple and the frequency of occurrence of the ripple increases as a result of repeated cycles of charging and discharging, deciding that degradation of the cell has progressed to an extent that final breakdown of the cell will occur in a very near future.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: November 14, 1989
    Assignees: Hitachi, Ltd., The Tokyo Electric Power Co., Ltd.
    Inventors: Yasumasa Ishida, Hiroyuki Kawamoto, Motoi Wada, Hisamitu Hatoh, Yoshiteru Miyatake, Sadao Mori, Eiji Takahashi