Patents by Inventor Yositosi Okuno

Yositosi Okuno 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: 4327109
    Abstract: A compound of the formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are respectively hydrogen atom or methyl, R.sub.5 is a member of ##STR2## wherein R.sub.6 is hydrogen atom or methyl, R.sub.7 is alkenyl, alkadienyl, alkynyl or benzyl, R.sub.8 is hydrogen atom, ethynyl or cyano, R.sub.9 is hydrogen atom, a halogen atom or alkyl, R.sub.10 is a halogen atom, alkyl, alkenyl, alkynyl, benzyl, thenyl, furylmethyl, phenoxy, substituted phenoxy of phenylthio, or R.sub.9 and R.sub.10 are bonded at the ends to form polymethylene chain containing or not containing oxygen or sulfur atom, Y is oxygen atom, sulfur atom or --CH.dbd.CH--, n is 1 or 2, Z is phthalimido, thiophthalimido, di- or tetra-hydrophthalimido or dialkylmaleimido, R.sub.11 is phenyl, thienyl or furyl and X is a halogen atom, which is useful as an active ingredient of insecticides.
    Type: Grant
    Filed: April 22, 1980
    Date of Patent: April 27, 1982
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Toshio Mizutani, Nobushige Itaya, Nobuo Ohno, Takashi Matsuo, Shigeyoshi Kitamura, Yositosi Okuno
  • Patent number: 4229469
    Abstract: A compound of the formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are respectively hydrogen atom or methyl, R.sub.5 is a member of ##STR2## wherein R.sub.6 is hydrogen atom or methyl, R.sub.7 is alkenyl, alkadienyl, alkynyl or benzyl, R.sub.8 is hydrogen atom, ethynyl or cyano, R.sub.9 is hydrogen atom, a halogen atom or alkyl, R.sub.10 is a halogen atom, alkyl, alkenyl, alkynyl, benzyl, thenyl, furylmethyl, phenoxy, substituted phenoxy or phenylthio, or R.sub.9 and R.sub.10 are bonded at the ends to form polymethylene chain containing or not containing oxygen or sulfur atom, Y is oxygen atom, sulfur atom or --CH.dbd.CH--, n is 1 or 2, Z is phthalimido, thiophthalimido, di- or tetra-hydrophthalimido or dialkylmaleimido, R.sub.11 is phenyl, thienyl or furyl and X is a halogen atom, which is useful as an active ingredient of insecticides.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: October 21, 1980
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Toshio Mizutani, Nobushige Itaya, Nobuo Ohno, Takashi Matsuo, Shigeyoshi Kitamura, Yositosi Okuno
  • Patent number: 4113864
    Abstract: Phosphorothiolates represented by the formula, ##STR1## wherein R is an alkyl; A is an alkyl, haloalkyl, alkenyl, alkinyl, alkylthioalkyl, phenylthioalkyl, phthalimidoalkyl or phenylalkyl; X is hydrogen, a halogen or an alkyl; and n is an integer of 1 to 5, are obtained by (1) reacting sodium or potassium hydrosulfide with a compound represented by the formula, ##STR2## WHEREIN R, X and n have the same significances as mentioned above, to prepare a thiophosphate represented by the formula, ##STR3## wherein R, X and n have the same significances as mentioned above; and M is an alkali metal, and then (2) reacting said thiophosphate with a halide represented by the formula,Y -- Awherein A has the same significance as mentioned above; and Y is a halogen.The phosphorothiolates have insecticidal and fungicidal activities.
    Type: Grant
    Filed: February 15, 1977
    Date of Patent: September 12, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Tsuchiya, Kunio Mukai, Akio Kimura, Hiroshi Taya, Keimei Fujimoto, Toshiaki Ozaki, Sigeo Yamamoto, Taizo Ogawa, Tadashi Ooishi, Yositosi Okuno
  • Patent number: 4028438
    Abstract: Phosphorothiolates represented by the formula, ##STR1## wherein R is an alkyl; A is an alkyl, haloalkyl, alkenyl, alkinyl, alkylthioalkyl, phenylthioalkyl, phthalimidoalkyl or phenylalkyl; X is hydrogen, a halogen or an alkyl; and n is an integer of 1 to 5, are obtained by (1) reacting sodium or potassium hydrosulfide with a compound represented by the formula, ##STR2## WHEREIN R, X, and n have the same significances as mentioned above, to prepare a thiophosphate represented by the formula, ##STR3## wherein R, X and n have the same significances as mentioned above; and M is an alkali metal, and then (2) reacting said thiophosphate with a halide represented by the formula,Y--Awherein A has the same significance as mentioned above; and Y is a halogen.The phosphorothiolates have insecticidal and fungicidal activities.
    Type: Grant
    Filed: November 14, 1973
    Date of Patent: June 7, 1977
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Tsuchiya, Kunio Mukai, Akio Kimura, Hiroshi Taya, Keimei Fujimoto, Toshiaki Ozaki, Sigeo Yamamoto, Taizo Ogawa, Tadashi Ooishi, Yositosi Okuno
  • Patent number: 3998868
    Abstract: A compound of the formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are respectively hydrogen atom or methyl, R.sub.5 is a member of ##STR2## wherein R.sub.6 is hydrogen atom or methyl, R.sub.7 is alkenyl, alkadienyl, alkynyl or benzyl, R.sub.8 is hydrogen atom, ethynyl or cyano, R.sub.9 is hydrogen atom, a halogen atom or alkyl, R.sub.10 is a halogen atom, alkyl, alkenyl, alkynyl, benzyl, thenyl, furylmethyl, phenoxy, substituted phenoxy or phenylthio, or R.sub.9 and R.sub.10 are bonded at the ends to form polymethylene chain containing or not containing oxygen or sulfur atom, Y is oxygen atom, sulfur atom or --CH=CH--, n is 1 or 2, Z is phthalimido, thiophthalimido, di- or tetra-hydrophthalimido or dialkylmaleimido, R.sub.11 is phenyl, thienyl or furyl and X is a halogen atom, which is useful as an active ingredient of insecticides.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: December 21, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toshio Mizutani, Nobushige Itaya, Nobuo Ohno, Takashi Matsuo, Shigeyoshi Kitamura, Yositosi Okuno
  • Patent number: 3970703
    Abstract: A compound of the formula, ##SPC1##Wherein R.sub.1 is a C.sub.1.sub.-6 alkyl, a C.sub.2.sub.-6 alkenyl, a C.sub.3.sub.-6 alkynyl, a C.sub.3.sub.-6 cycloalkyl, benzyl, thienyl or a group of ##SPC2##(R.sub.4 is hydrogen, halogen, a C.sub.1.sub.-4 alkyl or methylenedioxy, and n is an integer of 1 to 5), R.sub.2 is a C.sub.1.sub.-6 alkyl, a C.sub.3.sub.-6 alkenyl or a C.sub.3.sub.-6 alkynyl, R.sub.3 is a C.sub.1.sub.-6 alkyl, a C.sub.3.sub.-6 alkenyl or a C.sub.3.sub.-6 alkynyl, (provided that R.sub.2 is a C.sub.3.sub.-6 alkynyl when R.sub.3 is a C.sub.1.sub.-6 alkyl), and A is a group of --COOR.sub.3 or --CH.sub.2 OR.sub.3, provided that R.sub.1 is a C.sub.1.sub.-6 alkyl, a C.sub.2.sub.-6 alkenyl, a C.sub.3.sub.-6 alkynyl, a C.sub.3.sub.-6 cycloalkyl or benzyl when A is a group of --CH.sub.2 OR.sub.3 (R.sub.3 is as defined above), and R.sub.3 is a C.sub.4.sub.-6 alkenyl or a C.sub.4.sub.-6 alkynyl when R.sub.1 is a group of ##SPC3##(R.sub.4 and n are as defined above) and A is a group of --COOR.sub.
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: July 20, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shigeyoshi Kitamura, Yositosi Okuno, Masachika Hirano
  • Patent number: 3954814
    Abstract: A compound of the formula, ##EQU1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are respectively hydrogen atom or methyl, R.sub.5 is a member of ##SPC1##--CH.sub.2 Z or ##EQU2## wherein R.sub.6 is hydrogen atom or methyl, R.sub.7 is alkenyl, alkadienyl, alkynyl or benzyl, R.sub.8 is hydrogen atom, ethynyl or cyano, R.sub.9 is hydrogen atom, a halogen atom or alkyl, R.sub.10 is a halogen atom, alkyl, alkenyl, alkynyl, benzyl, thenyl, furylmethyl, phenoxy, substituted phenoxy or phenylthio, or R.sub.9 and R.sub.10 are bonded at the ends to form polymethylene chain containing or not containing oxygen or sulfur atom, Y is oxygen atom, sulfur atom or --CH=CH--, n is 1 or 2, Z is phthalimido, thiophthalimido, di- or tetra-hydrophthalimido or dialkylmaleimido, R.sub.11 is phenyl, thienyl or furyl and X is a halogen atom, which is useful as an active ingredient of insecticides.
    Type: Grant
    Filed: June 23, 1972
    Date of Patent: May 4, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toshio Mizutani, Nobushige Itaya, Nobuo Ohno, Takashi Matsuo, Shigeyoshi Kitamura, Yositosi Okuno