Patents by Inventor Ikutoshi Matsuura

Ikutoshi Matsuura 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).

  • Pseudouridine derivative
    Patent number: 4904771
    Abstract: 5'-Pseudouridyl-N-oleoyl carbamate represented by the formula: ##STR1## This compound is physiologically active in that it markedly enhances the actions of glucocorticoids and hence is useful as an alternative to conventional steroid drugs.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: February 27, 1990
    Inventors: Nobuhiko Katsunuma, Hiroshi Kido, Ikutoshi Matsuura, Yoshihiko Ishitani
  • Pyridyl carbonyl ascochlorin derivatives and pharmaceutical compositions containing the same
    Patent number: 4542143
    Abstract: Ascochlorin derivatives of the formula: ##STR1## wherein R is a hydroxyl group, a lower alkoxy group, a pyridyl group, an amino group, a dialkylamino group, a phenoxyalkyl group which may have a substituent in the nucleus, or a phenyl group which may have a substituent in the nucleus; and n is an integer of 0 to 5, a process for preparing the same and a pharmaceutical composition containing the same are disclosed.The derivatives are useful to treat diabetes, improve lipid metabolism and control tumors.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: September 17, 1985
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Tomoyoshi Hosokawa, Ikutoshi Matsuura, Hidenori Takahashi, Kunio Ando, Gakuzo Tamura
  • Ascochlorin derivatives, and pharmaceutical composition containing the same
    Patent number: 4500544
    Abstract: Ascochlorin derivatives of the formula: ##STR1## wherein R is a hydroxyl group, a lower alkoxy group, a pyridyl group, an amino group, a dialkylamino group, a phenoxyalkyl group which may have a substituent in the nucleus, or a phenyl group which may have a substituent in the nucleus; and n is an integer of 0 to 5, a process for preparing the same and a pharmaceutical composition containing the same are disclosed.The derivatives are useful to treat diabetes, improve lipid metabolism and control tumors.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: February 19, 1985
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Tomoyoshi Hosokawa, Ikutoshi Matsuura, Hidenori Takahashi, Kunio Ando, Gakuzo Tamura