Patents by Inventor Hirohisa Yanagita

Hirohisa Yanagita 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).

  • N-(2-chloro-4-nitrophenyl)-3-trifluoromethyl-benzenesulfonamide derivative and agricultural fungicide containing same
    Patent number: 4918106
    Abstract: Disclosed herein are N-(2-chloro-4-nitrophenyl)-3-trifluoromethyl-benzenesulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom and agricultural fungicides containing said derivatives.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: April 17, 1990
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita
  • N-(2-chloro-4-nitrophenyl)-(benzenesulfonamide derivative and agricultural fungicide containing same
    Patent number: 4870107
    Abstract: Disclosed herein are N-(2-chloro-4-nitrophenyl)-benzenesulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom and Z denotes a chlorine atom or trifluoromethyl group, and agricultural fungicides containing said derivatives.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: September 26, 1989
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita
  • N-(2-Chloro-4-nitrophenyl)-benezene-sulfonamide derivative and agricultural fungicide containing same
    Patent number: 4851445
    Abstract: Disclosed herein are N-(2-chloro-4-nitrophenyl)benzenesulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom and Z denotes a chlorine atom or trifluoromethyl group, and agricultural fungicides containing said derivatives.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: July 25, 1989
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita
  • N-(2-chloro-4-trifluoromethylphenyl)-3-trifluoromethylbenzenesulfonamide derivative and agricultural fungicide containing same
    Patent number: 4692466
    Abstract: Disclosed herein are N-(2-chloro-4-trifluoromethylphenyl)-3-trifluoromethylbenzensulfonamide derivatives represented by the following general formula (I): ##STR1## wherein X and Y individually mean a hydrogen or chlorine atom, and agricultural fungicides containing said derivatives.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: September 8, 1987
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Takeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Yutaka Kubota, Hideo Yamazaki, Yuji Enomoto, Hirohisa Yanagita
  • 3-Nitrobenzene sulfonanilide derivatives and fungicidal compositions for the control of plant diseases containing same
    Patent number: 4551478
    Abstract: Disclosed are novel 3-nitrobenzene sulfonanilide derivatives and, among others, that of the formula ##STR1## as well as fungicidal compositions containing such compounds as the active ingredient. The compounds of the invention are markedly effective in controlling plant diseases and, in particular, clubroot disease of Brassica spp., have no toxicity to men, beasts, and fishes, exert no phytotoxicity on crops, have neither irritant nor unpleasant odor, and manifest their excellent fungicidal effect at low concentrations. Accordingly, they are ideally useful in fungicidal compositions.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: November 5, 1985
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tekeo Yoshimoto, Mitsumasa Umemoto, Keiichi Igarashi, Hideo Yamazaki, Yoshio Takasawa, Hirohisa Yanagita
  • 3-Nitro-4-methylbenzene sulfon-2-chloro-4-nitroanilide and fungicidal composition for the control of plant diseases containing same
    Patent number: 4497828
    Abstract: 3-nitro-4-methylbenzene sulfon-2-chloro-4-nitroanilide ##STR1## as a novel compound as well as fungicidal composition containing the compound as the active ingredient. The compound of the invention is markedly effective in controlling plant diseases and, in particular, clubroot disease of Brassica spp., has no toxicity to men, beasts, and fishes, exerts no phytotoxicity on crops, has neither irritant nor unpleasant odor, and manifests its excellent fungicidal effect at low concentrations. Accordingly, it is ideally useful in fungicidal composition.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: February 5, 1985
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Takeo Yoshimoto, Keiichi Igarashi, Hideo Yamazaki, Yoshio Takasawa, Hirohisa Yanagita