Patents by Inventor Kouhei Hirano

Kouhei Hirano 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).

  • Peptides as antiallergic agents
    Patent number: 5223487
    Abstract: The following oligopeptides containing -Asp-Gly- or -Asp-Ser- are synthesized:H-Asp-Gly-Lys-OHH-Ser-Asp-Gly-Lys-OHH-Asp-Ser-Asp-Gly-Lys-OHH-Ala-Asp-Ser-Asp-Gly-Lys-OHThe oligopeptides have antiallergic, vasodilating and immunoregulating activities and are very useful for treating allergic symptoms.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: June 29, 1993
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Keiichi Noguchi, Noriya Ohta, Daisuke Irie, Katsurou Matsuo, Kouhei Hirano, Asako Tokunaga, Fumio Ishikawa
  • Peptides and intermediates therefor useful as antiallergic agents, vasodilators and immunoregulators
    Patent number: 5118669
    Abstract: The following oligopeptides containing -Asp-Gly- or -Asp-Ser- are synthesized:H-Asp-Gly-Lys-OHH-Ser-Asp-Gly-Lys-OHH-Asp-Ser-Asp-Gly-Lys-OHH-Ala-Asp-Ser-Asp-Gly-Lys-OHThe oligopeptides have antiallergic, vasodilating and immunoregulating activities and are very useful for treating allergic symptons.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: June 2, 1992
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Keiichi Noguchi, Noriya Ohta, Daisuke Irie, Katsurou Matsuo, Kouhei Hirano, Asako Tokunaga, Fumio Ishikawa