Patents by Inventor Keiichi Izumi

Keiichi Izumi 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).

  • Oxime compounds, their use, and intermediates for their production
    Patent number: 6448444
    Abstract: Oxime compounds of formula (1) wherein R1, R2, and R3 are independently halogen, C1-C3 alkyl, C1-C3 halolalkyl, C1-C3 alkoxy, C1-C3 haloalkoxy, nitro, or cyano; R4 is 3,3-dihalogeno-2-propenyl; a is an integer of 0 to 2; Y is oxygen, sulfur, or NH; Z is oxygen, sulfur, or NR5 wherein R5 is hydrogen, acetyl, or C1-C3 alkyl; and X is of formula (2) insecticidal/acaricidal agents containing them as active ingredients; and intermediates for their production.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 10, 2002
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Ikegami, Keiichi Izumi, Masaya Suzuki, Noriyasu Sakamoto, Shigeru Saito
  • Oxime compounds, their use, and intermediates for their production
    Patent number: 6437184
    Abstract: Oxime compounds of formula (1) wherein R1, R2, and R3 are independently halogen, C1-C3 alkyl, C1-C3 haloalalkyl, C1-C3 alkoxy, C1-C3 haloalkoxy, nitro, or cyano; R4 is 3,3-dihalogeno-2-propenyl; a is an integer of 0 to 2; Y is oxygen, sulfur, or NH; Z is oxygen, sulfur, or NR5 wherein R5 is hydrogen, acetyl, or C1-C3 alkyl; and X is of formula (2) insecticidal/acaricidal agents containing them as active ingredients; and intermediates for their production.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: August 20, 2002
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Ikegami, Keiichi Izumi, Masaya Suzuki, Noriyasu Sakamoto, Shigeru Saito
  • Oxime compounds, their use, and intermediates for their production
    Publication number: 20020019569
    Abstract: Oxime compounds of formula (1) 1
    Type: Application
    Filed: April 23, 2001
    Publication date: February 14, 2002
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Ikegami, Keiichi Izumi, Masaya Suzuki, Noriyasu Sakamoto, Shigeru Saito
  • Dihalopropene compounds insecticides containing them as active ingredients, and intermediates for their production
    Patent number: 6214835
    Abstract: The present invention provides dihalopropene compounds of the general formula: wherein R1 is C1-C10 alkyl or the like; L is C(═O)NH or the like; R2, R3 and R4 are independently halogen or the like; R5, R6 and R7 are independently hydrogen or the like; m is an integer of 0 to 4; n is an integer of 0 to 2; X is chlorine or the like; Y is oxygen or the like; and Z is oxygen or the like, which have excellent insecticidal activity so that they are satisfactorily effective for the control of noxious insects.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: April 10, 2001
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Sanshiro Matsuo, Taro Hirose, Keiichi Izumi, Masaya Suzuki, Noriyasu Sakamoto, Kazunori Tsushima, Shigeru Saito, Hirotaka Takano
  • Dihalopropene compounds, their use as insecticides/acaricides and intermediates for their production
    Patent number: 6140274
    Abstract: Dihalopropene compounds of the general formula: ##STR1## wherein R.sup.1 is substituted alkyl; R.sup.2, R.sup.3 and R.sup.4 are each independently halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, nitro or cyano; A is O, S(O).sub.t or NR.sup.14 in which R.sup.14 is H or alkyl and t is 0 to 2; B is substituted alkylene, alkenylene or alkynylene; r is 0 to 2; X's are each independently halogen; Y is O, S or NH; Z is O, S or NR.sup.25 in which R.sup.25 is H, acetyl or alkyl, which are useful as active ingredients of insecticidal/acaricidal agents.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: October 31, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Ikegami, Keiichi Izumi, Masaya Suzuki, Noriyasu Sakamoto, Hirotaka Takano
  • Dihalopropene compounds, insecticides containing them as active ingredients, and intermediates for their production
    Patent number: 6028100
    Abstract: The present invention provides dihalopropene compounds of the general formula: ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.10 alkyl or the like; L is C(.dbd.O)NH or the like; R.sub.2, R.sub.3 and R.sub.4 are independently halogen or the like; R.sub.5, R.sub.6 and R.sub.7 are independently hydrogen or the like; m is an integer of 0 to 4; n is an integer of 0 to 2; X is chlorine or the like; Y is oxygen or the like; and Z is oxygen or the like, which have excellent insecticidal activity so that they are satisfactorily effective for the control of noxious insects.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: February 22, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Sanshiro Matsuo, Taro Hirose, Keiichi Izumi, Masaya Suzuki, Noriyasu Sakamoto, Kazunori Tsushima, Shigeru Saito, Hirotaka Takano
  • Dihalopropene compounds, insecticides containing them as active ingredients, and intermediates for their production
    Patent number: 5952386
    Abstract: The present invention provides dihalopropene compounds of the general formula: ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.10 alkyl or the like; L is C(.dbd.O)NH or the like; R.sub.2, R.sub.3 and R.sub.4 are independently halogen or the like; R.sub.5, R.sub.6 and R.sub.7 are independently hydrogen or the like; m is an integer of 0 to 4; n is an integer of 0 to 2; X is chlorine or the like; Y is oxygen or the like; and Z is oxygen or the like, which have excellent insecticidal activity so that they are satisfactorily effective for the control of noxious insects.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: September 14, 1999
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Sanshiro Matsuo, Taro Hirose, Keiichi Izumi, Masaya Suzuki, Noriyasu Sakamoto, Kazunori Tsushima, Shigeru Saito, Hirotaka Takano
  • Fluoropropene compound, an insecticide containing the same and an intermediate for production thereof
    Patent number: 5869506
    Abstract: The present invention provides a fluoropropene compound represented by Formula I: ##STR1## wherein R.sup.1 represents a C.sub.1 -C.sub.10 alkyl group or other groups, Z represents an oxygen atom or other groups, R.sup.2, R.sup.3, and R.sup.4 each independently represent a C.sub.1 -C.sub.3 alkyl group or other groups, r represents an integer of 0 to 2, and X represents a halogen atom or other groups.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: February 9, 1999
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Keiichi Izumi, Hiroshi Ikegami, Masaya Suzuki, Noriyasu Sakamoto, Hirotaka Takano
  • Iminothiazolines, their production and use as herbicides, and intermediates for their production
    Patent number: 5508415
    Abstract: An iminothiazoline compound of the formula: ##STR1## which is useful as a herbicide.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: April 16, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinichi Kawamura, Keiichi Izumi, Junichi Sato, Yuzuru Sanemitsu, Tatsuhiro Hamada, Hideyuki Shibata, Ryo Sato
  • Iminothiazolines, their production and use as herbicides, and intermediates for their production
    Patent number: 5459277
    Abstract: There is disclosed an iminothiazoline compound of the formula: ##STR1## wherein R.sup.1 is halogen, halo(lower)alkyl, halo(lower)alkoxy or halo(lower)alkylthio; R.sup.2 is lower alkyl, chlorine, bromine or iodine; R.sup.3 is (lower alkyl)carbonyl, (lower cycloalkyl)carbonyl, (lower cycloalkoxy)carbonyl, (lower alkoxy)carbonyl or (lower alkyl)sulfonyl, all of which are optionally substituted with at least one substituent selected from halogen, lower alkyl, lower alkoxy, lower cycloalkyl and lower cycloalkoxy; and R.sup.4 is halogen. Also disclosed are a process for producing this compound, a herbicidal composition comprising this compound as an active ingredient, and a method for controlling undesired weeds by use of this compound as a herbicide.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: October 17, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinichi Kawamura, Keiichi Izumi, Junichi Sato, Yuzuru Sanemitsu, Ryo Sato, Tatsuhiro Hamada, Hideyuki Shibata
  • Iminothiazolines, their production and use as herbicides, and intermediates for their production
    Patent number: 5426188
    Abstract: An iminothiazoline compound of the formula: ##STR1## which is useful as a herbicide.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: June 20, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinichi Kawamura, Keiichi Izumi, Junichi Sato, Yuzuru Sanemitsu, Tatsuhiro Hamada, Hideyuki Shibata, Ryo Sato
  • Iminothiazolines, their production and use as herbicides, and intermediates for their production
    Patent number: 5350736
    Abstract: There is disclosed an iminothiazoline compound of the formula: ##STR1## wherein R.sup.1 is halogen, halo(lower)alkyl, halo(lower)alkoxy or halo(lower)alkylthio; R.sup.2 is lower alkyl, chlorine; bromine or iodine; R.sup.3 is (lower alkyl)carbonyl, (lower cycloalkyl)carbonyl, (lower cycloalkoxy)carbonyl, (lower alkoxy)carbonyl or (lower alkyl)sulfonyl, all of which are optionally substituted with at least one substituent selected from halogen, lower alkyl, lower alkoxy, lower cycloalkyl and lower cycloalkoxy; and R.sup.4 is halogen. Also disclosed are a process for producing this compound, a herbicidal composition comprising this compound as an active ingredient, and a method for controlling undesired weeds by use of this compound as a herbicide.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: September 27, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinichi Kawamura, Keiichi Izumi, Junichi Sato, Yuzuru Sanemitsu, Ryo Sato, Tatsuhiro Hamada, Hideyuki Shibata
  • Iminothiazolines, their production and use as herbicides
    Patent number: 5292715
    Abstract: There is disclosed an iminothiazoline compound of the formula: ##STR1## wherein R.sup.1 is halogen, halo(lower)alkyl, halo(lower)alkoxy or halo(lower)alkylthio; R.sup.2 is methyl, ethyl, chlorine, bromine or iodine; R.sup.3 is lower alkyl, lower cycloalkyl, lower alkoxy, lower cycloalkoxy, lower alkylamino, phenylamino or phenyl, all of which are optionally substituted with at least one substituent selected from halogen, lower alkyl, lower alkoxy, halo(lower)alkyl, lower cycloalkyl and lower cycloalkoxy; and R.sup.4 is hydrogen or halogen. Also disclosed are a process for producing this compound, a herbicidal composition comprising this compound as an active ingredient, and a method for controlling undesired weeds by use of this compound as a herbicide.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: March 8, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinichi Kawamura, Keiichi Izumi, Junichi Sato, Yuzuru Sanemitsu, Ryo Sato, Tatsuhiro Hamada, Hideyuki Shibata
  • Iminothiazolines, their production and use as herbicides, and intermediates for their production
    Patent number: 5244863
    Abstract: An iminothiazoline compound of the formula: ##STR1## which is useful as a herbicide.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: September 14, 1993
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinichi Kawamura, Keiichi Izumi, Junichi Sato, Yuzuru Sanemitsu, Tatsuhiro Hamada, Hideyuki Shibata, Ryo Sato