Patents by Inventor Keiji Sutoh

Keiji Sutoh 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).

  • Process for producing 1,2,4-triazolin-5-one derivatives, and intermediates therefor
    Patent number: 4845232
    Abstract: A process for producing 1,2,4-triazolin-5-one derivatives represented by the general formula (I) ##STR1## wherein R is a haloalkyl group of 1 to 5 carbon atoms and R.sup.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: July 4, 1989
    Assignee: Nihon Nohyaku Co., Ltd.
    Inventors: Hisanori Matsui, Keiji Sutoh, Moriharu Yamamoto, Kazuhiro Takagi, Kunihiro Yabutani, Kuniaki Taninaka, Mitsuru Kajioka