Patents by Inventor Masahiro Torihara

Masahiro Torihara 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).

  • Skin depigmental agent
    Patent number: 4959393
    Abstract: A skin depigmental agent characterized by comprising a resorcinol derivative having a linear alkyl group is provided.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: September 25, 1990
    Assignee: Kuraray Company, Ltd.
    Inventors: Masahiro Torihara, Yoshin Tamai, Manzo Shiono, Kenji Tasaka
  • Method for treating ulcer
    Patent number: 4950818
    Abstract: A novel and useful method for treating and/or preventing ulcer in human beings is provided which comprises administering an effective amount of a pharmaceutical composition comprising at least one of the conjugated .gamma.-oxybutenolide compounds represented by the general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are the same or different and represent hydrogen atoms, alkyl groups, hydroxyl groups, alkoxy groups, nitro groups, cyano groups or halogen atoms; and optionally at least one pharmaceutically acceptable carrier.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: August 21, 1990
    Assignee: Kuraray Company, Ltd.
    Inventors: Yoshin Tamai, Masahiro Torihara, Yoichi Kido, Johji Yamahara, Masayoshi Ito
  • 2-cyano-4-phenyl pentane and fragrance or perfume compositions containing the same
    Patent number: 4837351
    Abstract: Described is a new chemical, 2-cyano-4-phenyl pentane, and the fragrance or perfume compositions containing said 2-cyano-4-phenyl pentane, in which the aroma of said 2-cyano-4-phenyl pentane is effectively imparted.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: June 6, 1989
    Assignee: Kuraray Company Ltd.
    Inventors: Masahiro Torihara, Yoshin Tamai