Patents by Inventor Tetsuji Ohshima

Tetsuji Ohshima 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
  • Cyclohexadione derivatives, selective herbicidal compositions as well as herbicidal method
    Patent number: 4863504
    Abstract: Novel cyclohexane-1,3-dione derivatives represented by 2-{1-(3-chloro-2-propenyloxyimino)propyl}-5-(1-methyl-1H-pyrazol-4-yl)cycl ohexane-1,3-dione and intermediates thereof are disclosed. The cyclohexane-1,3-dione derivatives have a potent herbicidal effect against a wide variety of weeds and can selectively control injurous weeds at lower dosages. A process for preparing the cyclohexane-1,3-dione derivatives is also disclosed.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: September 5, 1989
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Hiroshi Hamaguchi, Tetsuji Ohshima, Eiji Kohno, Hideo Takaishi, Tsutomu Mabuchi, Katsumasa Okawa
  • Pyrazole oxime derivatives and compositions
    Patent number: 4843068
    Abstract: A pyrazole oxime derivative represented by the general formula (I) which is useful as an insecticide and fungicide, ##STR1## wherein the structural elements are defined in the specification, and the method of controlling said pests. The compounds represented by the general formula (I) can be synthesized by the methods disclosed in the specification.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: June 27, 1989
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Hiroshi Hamaguchi, Hideo Takaishi, Tetsuji Ohshima, Takamichi Konno, Yukio Miyagi, Shiraiwa Yutaka, Takayuki Akita