Patents by Inventor Akio Kudamatsu

Akio Kudamatsu 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).

  • O-Aryl-alkoxyethyl-thiolphosphoric acid ester
    Patent number: 3970728
    Abstract: O-aryl-alkoxyethyl-thiolphosphoric acid ester amides of the formula ##EQU1## in which R.sup.1 is hydrogen or lower alkyl,R.sup.2 is lower alkyl, andX is a group of the formula ##SPC1##In whichm is 0, 1, 2 or 3, andEach Y independently is halogen, lower alkyl, lower alkoxy, lower alkylmercapto, lower alkoxycarbonyl, nitro or phenyl,which possess insecticidal, acaricidal and nematocidal properties.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: July 20, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Shigeo Kishino, Akio Kudamatsu, Shozo Sumi, Kozo Shiokawa
  • O-ethyl-S-N-propyl-O-(substituted pheny)-phosphorothiolates
    Patent number: 3954919
    Abstract: O-ethyl-S-n-propyl-O-(substituted phenyl)-phosphorothiolates of the general formula ##SPC1##WhereinX is halogen, lower alkyl, nitro, cyano, lower alkylmercapto, lower alkylsulfinyl, lower alkoxycarbonyl or lower alkyl carbonyl, andm is 1, 2 or 3,Which possess insecticidal, acaricidal and nematocidal properties.
    Type: Grant
    Filed: March 6, 1974
    Date of Patent: May 4, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Shigeo Kishino, Akio Kudamatsu, Kozo Skiokawa
  • O-ethyl-S-propyl-dithiophosphoric acid phenyl or naphthyl esters
    Patent number: 3947529
    Abstract: O-ethyl-S-n-propyl-dithiophosphoric acid phenyl or naphthyl esters, i.e. O-ethyl-S-n-propyl-O- or S- optionally substituted phenyl or naphthyl-phosphorothionothiol-- or dithiolates, of the formula ##EQU1## in which X is an oxygen or sulfur atom, andZ is a group of the formula ##SPC1##Y is a halogen atom or a lower alkyl, lower alkoxy, lower alkylmercapto, lower alkylsulfinyl, nitro, cyano or phenyl group, andm is 0, 1, 2 or 3, which possess insecticidal, acaricidal and nematocidal properties.
    Type: Grant
    Filed: May 17, 1974
    Date of Patent: March 30, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Shigeo Kishino, Akio Kudamatsu, Iwao Takase, Kozo Shiokawa, Shin-Ichi Yamaguchi
  • O-ethyl-S-propyl-S-benzyl-phosphorodithiolates
    Patent number: 3933947
    Abstract: O-ethyl-S-n-propyl-S-optionally substituted-benzyl-phosphoro(thiono)dithiolates of the formula ##EQU1## in which X stands for an oxygen or sulfur atom,Y stands for a halogen atom or a lower alkyl, lower alkoxy, lower alkylmercapto, lower alkylsulfinyl, nitro or cyano group, andm is 0, 1, 2 or 3,Which possess insecticidal, acaricidal and nematocidal properties.
    Type: Grant
    Filed: August 8, 1973
    Date of Patent: January 20, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Shigeo Kishino, Akio Kudamatsu, Kozo Shiokawa