Patents by Inventor Masaaki Hoya

Masaaki Hoya 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).

  • Benzamide derivatives and herbicidal composition containing the same
    Patent number: 4385927
    Abstract: A herbicidal composition comprises a novel compound of benzamide derivative having the formula ##STR1## wherein R represents a C.sub.1 -C.sub.8 alkyl group; X represents oxygen or sulfur atom and n is an integer of 1 or 2.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: May 31, 1983
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Tetsuo Takematsu, Masaaki Hoya, Toshitaka Kaneshiki
  • Benzamide derivatives and herbicidal composition containing the same
    Patent number: 4284813
    Abstract: A herbicidal composition comprises a novel compound of benzamide derivative having the formula ##STR1## wherein R represents a straight or branched chain alkyl group; a straight or branched chain alkoxy group; or amino group.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: August 18, 1981
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Tetsuo Takematsu, Masaaki Hoya