Patents by Inventor Nobuyoshi Hasegawa

Nobuyoshi Hasegawa 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).

  • Insecticidal hydrazine derivatives
    Patent number: 5608109
    Abstract: The present invention relates to a hydrazine derivative represented by the formula (I): ##STR1## (wherein each of Ar.sup.1 and Ar.sup.2 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted heteroaryl group, or the like, R.sup.1 is an alkyl group or the like, and A is a divalent radical having --C.dbd.N--N-- or --CH--NH--N-- as a fundamental skeleton), which is a useful compound as an agricultural and horticultural insecticide.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: March 4, 1997
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Kazuhiro Takagi, Tetsuji Ohshima, Nobuyoshi Hasegawa, Chiaki Katoh, Atsushi Kanaoka, Hideo Kanno