Patents by Inventor Yoshihiko Hirono

Yoshihiko Hirono 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).

  • Patent number: 4075239
    Abstract: Various substituted cyclohexane-1,3-diones are useful as herbicides.An exemplary species is 2-[1-(allyloxyamino)propylidene]-5,5-dimethylcyclohexane-1,3-dione.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: February 21, 1978
    Assignee: Nippon Soda Company, Limited
    Inventors: Mikio Sawaki, Isao Iwataki, Yoshihiko Hirono, Hisao Ishikawa
  • Patent number: 4033754
    Abstract: A compound of the general formula ##STR1## WHEREIN R.sub.1 is lower alkyl having six or less carbon atoms,R.sub.2 is lower alkyl having six or less carbon atoms or lower alkenyl having six or less carbon atoms,R.sub.3 is hydrogen or lower alkoxycarbonyl having six or less carbon atoms,R is aliphatic or aromatic ester residue of dibasic or tribasic acid andn is 2 or 3;Is useful as herbicide.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: July 5, 1977
    Assignee: Nippon Soda Company Limited
    Inventors: Mikio Sawaki, Isao Iwataki, Yoshihiko Hirono, Hisao Ishikawa
  • Patent number: 4011256
    Abstract: Various substituted cyclohexane-1,3-diones are useful as herbicides.An exemplary species is 2-[1-(allyloxyamino)propylidene]-5,5-dimethylcyclohexane-1,3-dione.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: March 8, 1977
    Assignee: Nippon Soda Company Limited
    Inventors: Mikio Sawaki, Isao Iwataki, Yoshihiko Hirono, Hisao Ishikawa
  • Patent number: 4008067
    Abstract: A compound of the general formula ##STR1## wherein R.sub.1 is lower alkyl,R.sub.2 is selected from the group consisting of lower alkyl, lower alkenyl and lower alkynyl,A is a formula which is selected from the formula consisting of: ##STR2## where R.sub.3 is selected from the group consisting of hydrogen and lower alkyl,R.sub.4 is selected from the group consisting of lower alkyl and phenyl, andR.sub.3 forms cyclo-alkylene of 4 to 5 carbon atoms by combining with R.sub.4 ; ##STR3## where R.sub.5 and R.sub.7 are selected from the group consisting of hydrogen and lower alkyl andR.sub.6 is lower alkyl; and ##STR4## where R.sub.8 is selected from the group consisting of hydrogen and lower alkyl andR.sub.9 is lower alkyl;Or a metal salt of the compound defined herein above is useful as herbicide.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: February 15, 1977
    Assignee: Nippon Soda Company, Limited
    Inventors: Yoshihiko Hirono, Hisao Ishikawa, Isao Iwataki, Mikio Sawaki, Takashi Okabe, Daigaku Takiguchi, Kuniyasu Maeda
  • Patent number: 3999974
    Abstract: A compound of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, phenyl and phenyl substituted with halogen or halogenated methyl;R.sub.2 is selected from the group consisting of hydrogen, lower alkyl and lower alkenyloxy;R.sub.3 is selected from the group consisting of lower alkyl and phenyl substituted with halogen;R.sub.4 is selected from the group consisting of lower alkyl, lower alkenyl and benzyl;Or a metal salt of the compound defined herein above; is useful as herbicide.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: December 28, 1976
    Assignee: Nippon Soda Company Limited
    Inventors: Yoshihiko Hirono, Hisao Ishikawa, Isao Iwataki, Mikio Sawaki, Osami Nomura
  • Patent number: 3989737
    Abstract: A compound of the formula ##SPC1##WhereinR.sub.1 is selected from the group consisting of phenyl and straight or branched chain alkyl;R.sub.2 is selected from the group consisting of straight or branched chain lower alkyl, straight or branched chain lower alkenyl, lower alkynyl, lower alkoxymethyl, lower alkylthiomethyl and benzyl;X is a same or different substituent which is selected from the group consisting of straight or branched chain alkyl, lower alkoxycarbonyl, phenyl, substituted phenyl having at least one substituent selected from the group consisting of halogen, methyl and methoxy, styryl, furyl, thienyl and --(CH.sub.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: November 2, 1976
    Assignee: Nippon Soda Company Limited
    Inventors: Mikio Sawaki, Isao Iwataki, Yoshihiko Hirono, Hisao Ishikawa
  • Patent number: 3989504
    Abstract: A compound of the formula ##SPC1##Wherein X is hydrogen or halogen:R.sub.1 is alkyl having six or less carbon atoms or phenyl;R.sub.2 is alkyl having 1 to 20 carbon atoms or haloalkyl having six or less carbon atoms or phenyl or phenyl substituted with halogene or nitro or benzyl or phenoxymethyl or 2-phenylvinyl;R.sub.3 is hydrogen or alkyl having 1 to 10 carbon atoms or alkenyl having six or less carbon atoms or alkynyl having six or less carbon atoms or benzyl; a proviso that R.sub.1 and R.sub.2 do not simultaneously represent a methyl group,Is useful as herbicide.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: November 2, 1976
    Assignee: Nippon Soda Company Limited
    Inventors: Mikio Sawaki, Isao Iwataki, Yoshihiko Hirono, Hisao Ishikawa, Shozo Yamada, Yasushi Yasuda, Mitsuo Asada
  • Patent number: 3973945
    Abstract: A compound of the formula ##SPC1##Wherein R.sub.1 and R.sub.2 are alkyl having six or less carbon atoms, R.sub.3 is selected from the group consisting of alkyl having six or less carbon atoms and alkenyl having six or less carbon atoms, with the proviso that R.sub.1 and R.sub.2 don't represent simultaneously methyl group;Are useful as selective herbicide.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: August 10, 1976
    Assignee: Nippon Soda Company Ltd.
    Inventors: Akiharu Fujino, Isao Iwataki, Yoshihiko Hirono
  • Patent number: 3967950
    Abstract: Benzothiazole derivatives of the general formula: ##SPC1##Wherein R is chlorine atom, alkyl having from 1 to 4 carbon atoms or methoxy; are useful as selective herbicide.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: July 6, 1976
    Assignee: Nippon Soda Company Limited
    Inventors: Saburo Kano, Osami Nomura, Yoshihiko Hirono, Hisao Ishikawa, Shozo Yamada
  • Patent number: 3967951
    Abstract: A selective herbicidal composition comprising an effective amount of a compound of the formula ##SPC1##Wherein R is selected from the group consisting of isopropyl and tertbutyl.
    Type: Grant
    Filed: January 31, 1974
    Date of Patent: July 6, 1976
    Assignee: Nippon Soda Company Limited
    Inventors: Yoshihiko Hirono, Hisao Ishikawa, Shozo Yamada, Saburo Kano, Osami Nomura
  • Patent number: 3950420
    Abstract: Various substituted cyclohexane-1,3-diones are useful as herbicides.An exemplary species is 2-[1-(allyloxyamino)propylidene]5,5-dimethylcyclohexane-1,3-dione.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: April 13, 1976
    Assignee: Nippon Soda Company, Ltd.
    Inventors: Mikio Sawaki, Isao Iwataki, Yoshihiko Hirono, Hisao Ishikawa