Patents by Inventor Yukimitsu Masamoto

Yukimitsu Masamoto 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).

  • Pharmaceutical compositions and method for inhibiting histamine release tocopheryl glycoside
    Patent number: 4617292
    Abstract: A pharmaceutical composition for producing antiallergic activity containing as an active ingredient a certain tocopherol derivative having a sugar residue at 6-position of the 3,4-dihydrobenzopyrane ring thereof. A method for producing antiallergic activity using such a tocopherol derivative and some novel tocopherol derivatives are also disclosed.
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: October 14, 1986
    Assignee: Sunstar Kabushiki Kaisha
    Inventors: Toshio Satoh, Hideki Miyataka, Yukimitsu Masamoto, Takashi Asai, Kenji Hasegawa, Hisao Kakegawa