Patents by Inventor Eiki Nagano

Eiki Nagano 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).

  • 3?-substituted-abscisic acid derivatives
    Patent number: 10299476
    Abstract: The invention relates to a novel class of (S)-3?-substituted-abscisic acid derivatives and (±)-3?-substituted-abscisic acid derivatives, and methods of synthesizing the derivatives.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: May 28, 2019
    Assignee: VALENT BIOSCIENCES LLC
    Inventors: Gary T. Wang, Daniel F. Heiman, Gregory D. Venburg, Eiki Nagano, Marci Surpin, Joseph H. Lustig
  • 3?-SUBSTITUTED-ABSCISIC ACID DERIVATIVES
    Publication number: 20170360037
    Abstract: The invention relates to a novel class of (S)-3?-substituted-abscisic acid derivatives and (±)-3?-substituted-abscisic acid derivatives, and methods of synthesizing the derivatives.
    Type: Application
    Filed: September 5, 2017
    Publication date: December 21, 2017
    Inventors: Gary T. Wang, Daniel F. Heiman, Gregory D. Venburg, Eiki Nagano, Marci Surpin, Joseph H. Lustig
  • 3?-substituted-abscisic acid derivatives
    Patent number: 9781930
    Abstract: The invention relates to a novel class of (S)-3?-substituted-abscisic acid derivatives and (±)-3?-substituted-abscisic acid derivatives, and methods of synthesizing the derivatives.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 10, 2017
    Assignee: Valent BioSciences LLC
    Inventors: Gary T. Wang, Daniel Heiman, Gregory D. Venburg, Eiki Nagano, Marci Surpin, Joseph H. Lustig
  • 3'-SUBSTITUTED-ABSCISIC ACID DERIVATIVES
    Publication number: 20160007598
    Abstract: The invention relates to a novel class of (S)-3?-substituted-abscisic acid derivatives and (±)-3?-substituted-abscisic acid derivatives, and methods of synthesizing the derivatives.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 14, 2016
    Inventors: Gary T. Wang, Daniel Heiman, Gregory D. Venburg, Eiki Nagano, Marci Surpin, Joseph H. Lustig
  • Pyrimidone derivatives and their use
    Patent number: 5532208
    Abstract: There are disclosed novel pyrimidone derivatives of the formula I: ##STR1## wherein X is hydrogen, chlorine, methyl or ethyl, R.sup.2 is hydrogen or methyl, and Q is ##STR2## A is fluorine, chlorine or bromine; and R.sup.1 is alkyl, alkenyl, alkynyl, alkoxyalkyl or haloalkyl.Also disclosed are a herbicidal composition containing a herbicidally effective amount of the compound (I) as an active ingredient and a method for exterminating undesired weeds by applying a herbicidally effective amount of the compound (I) to an area where the undesired weeds grow or will grow.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: July 2, 1996
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Eiki Nagano, Susumu Takemura, Masayuki Enomoto, Masaharu Sakaki, Satoru Kizawa
  • Pyrimidone derivatives and their use
    Patent number: 5366955
    Abstract: There are disclosed novel pyrimidone derivatives of the formula I: ##STR1## wherein X is hydrogen, chlorine, methyl or ethyl, R.sup.2 is hydrogen or methyl, and Q is ##STR2## A is fluorine, chlorine or bromine; and R.sup.1 is alkyl, alkenyl, alkynyl, alkoxyalkyl or haloalkyl.Also disclosed are a herbicidal composition containing a herbicidally effective amount of the compound (I) as an active ingredient and a method for exterminating undesired weeds by applying a herbicidally effective amount of the compound (I) to an area where the undesired weeds grow or will grow.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: November 22, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Eiki Nagano, Susumu Takemura, Masayuki Enomoto, Masaharu Sakaki, Satoru Kizawa
  • Uracil derivatives and their herbicidal use
    Patent number: 5354730
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is a trifluoromethyl group or a pentafluoroethyl group, R.sup.2 is a methyl group or an amino group, R.sup.3 is a C.sub.1 -C.sub.7 alkyl group, a C.sub.3 -C.sub.7 alkenyl group, a C.sub.3 -C.sub.7 alkynyl group, a halo (C.sub.1 -C.sub.6) alkyl group, a halo (C.sub.3 -C.sub.6) alkenyl group or a C.sub.1 -C.sub.4 alkoxy(C.sub.1 -C.sub.3)alkyl group and Y is an oxygen atom or a sulfur atom, which is useful as a herbicide.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: October 11, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Enomoto, Eiki Nagano, Ryo Sato, Masaharu Sakai
  • N-aminouracil derivatives, and their production and use
    Patent number: 5314864
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is a trifluoromethyl group or a pentafluoroethyl group, R.sup.2 is a hydrogen atom or a methyl group, R.sup.3 is a C.sub.1 -C.sub.7 alkyl group, a C.sub.3 -C.sub.7 alkenyl group, a C.sub.3 -C.sub.7 alkynyl group, a halo(C.sub.1 -C.sub.6)alkyl group, a halo(C.sub.3 -C.sub.6)alkenyl group or a C.sub.1 -C.sub.4 alkoxy(C.sub.1 -C.sub.3)alkyl group and X is a hydrogen atom or a fluorine atom, which is useful as a herbicide.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: May 24, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Enomoto, Eiki Nagano, Ryo Sato, Masaharu Sakaki
  • Benbzofuran derivatives and their use as herbicides
    Patent number: 5308829
    Abstract: There are disclosed novel benzofuran derivatives of the formula: ##STR1## Also disclosed are a herbicidal composition containing the above benzofuran derivative as an active ingredient and a method for exterminating undesired weeds by the application of a herbicidally effective amount of the above benzofuran derivative to an area where the undesired weeds grow or will grow.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: May 3, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Susumu Takemura, Masayuki Enomoto, Toru Uekawa, Masaharu Sakaki, Ryo Sato, Eiki Nagano
  • Uracil derivatives and their use
    Patent number: 5281574
    Abstract: There is disclosed a 1-phenyl-4 trifluoromethyl-uracil derivative of the general formula: ##STR1## wherein R.sup.1 is hydrogen or methyl, and R.sup.2 is C.sub.1 -C.sub.7 alkyl or C.sub.3 -C.sub.7 cycloalkyl optionally substituted with C.sub.1 -C.sub.3 alkyl. Also disclosed are a herbicidal composition containing this derivative as an active ingredient and a method for exterminating undesired weeds by application of this herbicidal composition.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: January 25, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Enomoto, Susumu Takemura, Masaharu Sakaki, Shinsuke Shojima, Eiki Nagano
  • Amino uracil derivatives, and their production and use
    Patent number: 5280010
    Abstract: A compound of the formula: ##STR1## wherein R is lower alkyl, lower alkenyl, lower alkynyl, lower alkoxy(lower)alkyl, halo(lower)alkyl or halo(lower) alkenyl, X is chlorine or bromine, and Y is methyl optionally substituted with halogen, which is useful as an active ingredient of herbicides.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: January 18, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Enomoto, Susumu Takemura, Masaharu Sakaki, Shinsuke Shojima, Eiki Nagano
  • Arylindazole derivatives and their use
    Patent number: 5266556
    Abstract: There are disclosed novel arylindazole derivatives of the formula: ##STR1## and agrochemically acceptable salts thereof. Also disclosed are a herbicidal composition including the above arylindazole derivative as an active ingredient and a method for exterminating undesired weeds by the application of a herbicidally effective amount of the above arylindazole derivative to an area where the undesired weeds grow or will grow.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: November 30, 1993
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Enomoto, Susumu Takemura, Masaharu Sakaki, Satoru Kizawa, Eiki Nagano
  • Pyridone derivatives and use
    Patent number: 5238906
    Abstract: Pyridone derivatives of the formula: ##STR1## wherein R is an alkyl group, an alkenyl group, an alkynyl group, a haloalkyl group, a haloalkenyl group or an alkoxyalkyl group, X is a hydrogen atom, a halogen atom, a methyl group optionally substituted with mono or poly halogen atoms or an ethyl group optionally substituted with mono or poly halogen atoms and Y is a hydrogen atom or a methyl group. Said compounds show a high herbicidal potency against undesired weeds.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: August 24, 1993
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toru Uekawa, Susumu Takemura, Masayuki Enomoto, Masaharu Sakai, Ryo Sato, Eiki Nagano
  • Tetrahydrophthalimides, and their production and use as herbicides
    Patent number: 5191105
    Abstract: A compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom and R is a C.sub.1 -C.sub.8 alkyl group except isopropyl, which is useful as a herbicide.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: March 2, 1993
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Eiki Nagano, Shunichi Hashimoto, Ryo Yoshida, Hiroshi Matsumoto, Katsuzo Kamoshita
  • Uracil derivatives, and their production and use
    Patent number: 5169431
    Abstract: A compound of the formula: ##STR1## wherein R is a lower alkyl group, A is a hydrogen atom, a fluorine atom or a chlorine atom, X is an oxygen atom or a sulfur atom, Y is a hydrogen atom, a fluorine atom, a chlorine atom or a bromine atom and Z is a methyl group or an amino group, which is useful as a herbicide.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: December 8, 1992
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Enomoto, Susumu Takemura, Toru Uekawa, Masaharu Sakaki, Ryo Sato, Eiki Nagano
  • Benzoxazinyl-pyrazoles and their use as herbicides
    Patent number: 5156668
    Abstract: A compound of the formula: ##STR1## wherein R is a C.sub.1 -C.sub.5 alkyl group, a C.sub.3 -C.sub.6 alkenyl group, a C.sub.3 -C.sub.6 alkynyl group or a C.sub.1 -C.sub.3 alkoxy(C.sub.1 -C.sub.3)alkyl group, which is useful as a herbicide.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: October 20, 1992
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masayuki Enomoto, Eiki Nagano, Ryo Sato, Masaharu Sakaki
  • Benzothiazolones, and their production and use
    Patent number: 5079368
    Abstract: A compound of the formula: ##STR1## wherein R is a C.sub.1 -C.sub.5 alkyl group, a C.sub.3 -C.sub.4 alkenyl group, a C.sub.3 -C.sub.4 alkynyl group, a C.sub.1 -C.sub.2 alkoxy (C.sub.1 -C.sub.2) alkyl group, a C.sub.1 -C.sub.2 alkylthio (C.sub.1 -C.sub.2) alkyl group or a mono- or polyfluoro-(C.sub.1 -C.sub.3) group, X is a C.sub.1 -C.sub.4 alkylene group which may be substituted with at least one methyl or a --OCH.sub.2 -- group and n is an integer of 0, 1 or 2, which is useful as a herbicide.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: January 7, 1992
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Masayuki Enomoto, Eiki Nagano, Toru Haga, Kouichi Morita, Ryo Sato
  • Alkoxy-nitrobenzene and alkoxy-aminobenzene compounds useful in the production of tetrahydrophtalimides
    Patent number: 5030761
    Abstract: A compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom, which is useful as a herbicide.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: July 9, 1991
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Eiki Nagano, Shunich Hashimoto, Ryo Yoshida, Hiromichi Oshio, Katsuzo Kamoshita
  • Tetrahydrophthalimides, and their production and use
    Patent number: 5030760
    Abstract: A compound of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom and R is a C.sub.1 -C.sub.8 alkyl group except isopropyl, which is useful as a herbicide.
    Type: Grant
    Filed: September 18, 1984
    Date of Patent: July 9, 1991
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Eiki Nagano, Shunichi Hashimoto, Ryo Yoshida, Hiroshi Matsumoto, Katsuzo Kamoshita
  • Benzotriazoles, and their production and use
    Patent number: 4978787
    Abstract: A compound of the formula: ##STR1## wherein R is a C.sub.1 -C.sub.5 alkyl group, a C.sub.3 -C.sub.5 alkenyl group, a C.sub.3 -C.sub.5 alkynyl group or a C.sub.3 -C.sub.7 cycloalkyl group, which is useful as a herbicide.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: December 18, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toru Haga, Eiki Nagano, Ryo Sato, Kouichi Morita