Patents by Inventor Keisuke Masuyama

Keisuke Masuyama 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).

  • Agent for preventing and/or treating sinusitis
    Patent number: 7252835
    Abstract: An agent for preventing and/or treating sinusitis, comprising, as an active ingredient, a compound of the formula (I): or a salt and/or hydrate thereof. The pranlukast hydrate is useful as an agent for preventing and/or treating sinusitis.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: August 7, 2007
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: KenIchi Hisamatsu, Keisuke Masuyama
  • Agent for preventing and/or treating sinusitis
    Publication number: 20050182115
    Abstract: An agent for preventing and/or treating sinusitis, comprising, as an active ingredient, a compound of the formula (I): or a salt and/or hydrate thereof. The pranlukast hydrate is useful as an agent for preventing and/or treating sinusitis.
    Type: Application
    Filed: April 15, 2005
    Publication date: August 18, 2005
    Inventors: Kenichi Hisamatsu, Keisuke Masuyama
  • Agent for preventing and/or treating sinusitis
    Publication number: 20020198246
    Abstract: An agent for preventing and/or treating sinusitis, comprising, as an active ingredient, a compound of the formula (I): 1
    Type: Application
    Filed: July 16, 2002
    Publication date: December 26, 2002
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Kenichi Hisamatsu, Keisuke Masuyama