Patents by Inventor Michihiro Ohnaka

Michihiro Ohnaka 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).

  • Novel chloroacetanilide derivatives and herbicides containing the same for use in paddy field
    Patent number: 4798618
    Abstract: Disclosed herein are novel chloroacetanilide derivatives which act as remarkably effective herbicides when sprayed in a paddy field, the chloroacetanilide derivatives being 2',6'-diethyl-N-[(cis-alkenyloxy)methyl]-2-chloroacetanilides [A] represented by the general formula ##STR1## wherein R is a cis-form alkenyl group having 4 or 5 carbon atoms. Also disclosed are herbicide compositions for use in a paddy field and containing at least one of said chloroacetanilide derivatives [A] and at least one pyrazole derivative [B] represented by the general formula ##STR2## wherein R is a hydrogen atom or methyl group and X is a 4-toluenesulfonyl group or benzoylmethyl group; or-.alpha.
    Type: Grant
    Filed: December 7, 1982
    Date of Patent: January 17, 1989
    Assignee: Agro-Kanesho Co., Ltd.
    Inventors: Shinzo Someya, Rokuro Akahira, Hiroshi Horino, Michihiro Ohnaka, Takashi Kiuchi