Patents by Inventor Akihiko Yanagi

Akihiko Yanagi 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).

  • Benzoxazines and use as herbicides
    Patent number: 4804394
    Abstract: Novel benzoxazines of the formula (I) ##STR1## wherein X is hydrogen or halogen,R.sup.1 is hydrogen or C.sub.1 -C.sub.2 -alkyl,R.sup.2 is cyano, trimethylsilyl, trimethylsilylmethoxycarbonyl, C.sub.1 -C.sub.4 -alkylthio or cyclopropyl andQ is ##STR2## and the use of the novel compounds as herbicides, and intermediates for the preparation of the novel benzoxazines.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: February 14, 1989
    Assignee: Nihon Tokushu Noyaku Seizo K.K.
    Inventors: Toyohiko Kume, Toshio Goto, Atsumi Kamochi, Naoko Yamaguchi, Akihiko Yanagi, Hidenori Hayakawa, Shigeki Yagi, Hiroshi Miyauchi
  • Fungicidal phenylsulphonyl imidazoles
    Patent number: 4734427
    Abstract: The phenylsulphonylazoles of the formula ##STR1## in which R.sup.1 represents alkyl,m represents the number 1 or 2,n represents the number 0 or 1, andR.sup.2 represents a radical of the formula ##STR2## wherein R.sup.3 represents alkyl, andR.sup.4 represents hydrogen, halogen, nitro or alkyl.are particularly suitable for combating undesirable microorganisms.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: March 29, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Akihiko Yanagi, Akinori Hirashima, Wilhelm Brandes, Paul Reinecke
  • 1-(1,4-benzoxazin-3-on-6-yl)-dialkylmaleimides and use as herbicides
    Patent number: 4729784
    Abstract: Novel dialkylmaleimides of the formula (I) ##STR1## and the use of the novel compounds as herbicides.
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: March 8, 1988
    Assignee: Nihon Tokushu Noyaku Seizo K.K.
    Inventors: Toyohiko Kume, Toshio Goto, Atsumi Kamochi, Naoko Yamaguchi, Akihiko Yanagi, Hidenori Hayakawa, Shigeki Yagi