Patents by Inventor Yasushi Daikuhara

Yasushi Daikuhara 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).

  • Hepatic parenchymal cell growth factor gene encoding the same, process for producing the factor and transformants producing the factor
    Patent number: 5500354
    Abstract: According to the present invention, there are provided hepatic parenchymal cell growth factor obtained by recombinant DNA technology, a gene coding for the factor, an expression vector capable of expressing the gene, a cell, in particular animal cell, transformed with the expression vector, and a process for producing the hepatic parenchymal cell growth factor.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: March 19, 1996
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Naomi Kitamura, Keiji Miyazawa, Yasushi Daikuhara, Hirohito Tsubouchi, Daiji Naka, Kazuhiro Takahashi, Rie Matsui, Yoshiko Yoshiyama, Takehisa Ishii
  • Hepatocyte growth factor
    Patent number: 5004805
    Abstract: A hepatocyte growth factor comprising a proteinous substance derived from human blood and showing the following physicochemical properties and physiologic activity:(i) its molecular weight is estimated to be approximately 76,000 to 92,00 by SDS-PAGE analysis (under non-reductive conditon);(ii) it possesses HGF activity;(iii) the HGF activity is inactivated by heat treatment for 10 minutes at 80.degree. C.;(iv) the HGF activity may be lost by digestion with trypsin or with chymotrypsin; and(v) it has a high affinity for heparin.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: April 2, 1991
    Assignees: Shuji Hashimoto, Yasushi Daikuhara, Eiichi Gohda, Hirohito Tsubouchi, Mitsubishi Kasei Corporation
    Inventors: Eiichi Gohda, Hirohito Tsubouchi, Hiroyuki Nakayama, Shuichi Hirono, Kozo Takahashi, Shuji Hashimoto, Yasushi Daikuhara