Patents by Inventor Ryotaro Kugo

Ryotaro Kugo 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).

  • Isoxazoline derivative and herbicide comprising the same as active ingredient
    Patent number: 7238689
    Abstract: An isoxazoline derivative represented by the following general formula [I]: wherein R1 and R2 may be the same or different and are each an alkyl group; R3, R4, R5 and R6 are each a hydrogen atom; Y is an optionally substituted 5- to 6-membered aromatic heterocyclic group or fused aromatic heterocyclic group having a hetero atom selected from a nitrogen atom, a oxygen atom and a sulfur atom; and n is an integer: of 0 to 2. The isoxazoline derivative has an excellent herbicidal effect and an excellent selectivity between crop and weed.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: July 3, 2007
    Assignees: Ihara Chemical Industry Co., Ltd., Japan and Kumiai Chemical Industry
    Inventors: Masao Nakatani, Ryotaro Kugo, Masahiro Miyazaki, Koichiro Kaku, Makoto Fujinami, Ryohei Ueno, Satoru Takahashi
  • Isoxazoline derivative and herbicide comprising the same as active ingredient
    Publication number: 20040110749
    Abstract: An isoxazoline derivative represented by the following general formula [I]: 1
    Type: Application
    Filed: December 22, 2003
    Publication date: June 10, 2004
    Inventors: Masao Nakatani, Ryotaro Kugo, Masahiro Miyazaki, Koichiro Kaku, Makoto Fujinami, Ryohei Ueno, Satoru Takahashi