Patents by Inventor Toshiyuki Takashima

Toshiyuki Takashima 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).

  • 3,4-dihydro-4,4-dimethyl-2H-pyran-2-one, an insecticide intermediate
    Patent number: 4701539
    Abstract: Processes for producing a (1.alpha., 4.alpha., 5.alpha.)-6,6-dimethyl-4-halo-substituted methyl-3-oxabicyclo[3.1.0]hexan-2-one and its novel intermediates from known and inexpensive starting materials are described and exemplified.
    Type: Grant
    Filed: July 24, 1986
    Date of Patent: October 20, 1987
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Alkyl 6,6-dimethyl-2-oxo-3-oxabicyclo[3.1.0]hexane-1-carboxylates
    Patent number: 4526987
    Abstract: Lactones of the formula ##STR1## wherein R is hydrogen or a CX.sub.3 group, and each X is a chlorine or bromine atom, are converted to the known cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acids or lower alkyl esters, from which pyrethroid insecticides are obtained.
    Type: Grant
    Filed: January 3, 1979
    Date of Patent: July 2, 1985
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Daiei Tunemoto
  • Lower alkyl 5-chloro-3,3-dimethyl-5-phenylthiopentanoates useful as insecticide intermediates
    Patent number: 4473701
    Abstract: Processes for producing a (1.alpha., 4.alpha., 5.alpha.)-6,6-dimethyl-4-halo-substituted-methyl-3-oxabicyclo[3.1.0]hexan- 2-one and its novel intermediates from known and inexpensive starting materials are described and exemplified.
    Type: Grant
    Filed: January 22, 1982
    Date of Patent: September 25, 1984
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Interlayer for laminated safety glass
    Patent number: 4397976
    Abstract: A composition for an interlayer film of a laminated safety glass, said composition comprising (A) a thermoplastic resin resulting from copolymerization of (1) vinyl chloride, (2) glycidyl methacrylate and (3) at least one monomer selected from the group consisting of ethylenic hydrocarbons, vinyl esters of fatty acids, acrylic esters and vinyl ethers, and (B) a plasticizer.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: August 9, 1983
    Assignees: Sekisui Kagaku Kogyo Kabushiki Kaisha, Tokuyama Sekisui Kogyo Kabushiki Kaisha
    Inventors: Takeshi Mori, Toshiyuki Takashima, Kenichi Asahina, Toshiharu Matsumiya, Ariyasu Sugita
  • Composition for an interlayer of laminated safety glass
    Patent number: 4389508
    Abstract: A composition for an interlayer film of a laminated safety glass, said composition comprising (A) a thermoplastic resin resulting from copolymerization of (1) vinyl chloride, (2) glycidyl methacrylate and (3) at least one monomer selected from the group consisting of ethylenic hydrocarbons, vinyl esters of fatty acids, acrylic esters and vinyl ethers, and (B) a plasticizer.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: June 21, 1983
    Assignees: Sekisui Kagaku Kogyo Kabushiki Kaisha, Tokuyama Sekisui Kogyo Kabushiki Kaisha
    Inventors: Takeshi Mori, Toshiyuki Takashima, Kenichi Asahina, Toshiharu Matsumiya, Ariyasu Sugita
  • Laminated safety glass
    Patent number: 4382996
    Abstract: A composition for an interlayer film of a laminated safety glass, said composition comprising (A) a thermoplastic resin resulting from copolymerization of (1) vinyl chloride, (2) glycidyl methacrylate and (3) at least one monomer selected from the group consisting of ethylenic hydrocarbons, vinyl esters of fatty acids, acrylic esters and vinyl ethers, and (B) a plasticizer.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: May 10, 1983
    Assignees: Sekisui Kagaku Kogyo Kabushiki Kaisha, Tokuyama Sekisui Kogyo Kabushiki Kaisha
    Inventors: Takeshi Mori, Toshiyuki Takashima, Kenichi Asahina, Toshiharu Matsumiya, Ariyasu Sugita
  • Process for producing cis-3-(2,2-disubstituted-ethenyl)-2,2-dimethylcyclopropanecarboxylic acid and intermediates
    Patent number: 4344884
    Abstract: Novel intermediates for production of insecticidal cis-3-(2,2-disubstituted-ethenyl)-2,2-dimethylcyclopropanecarboxylates, processes for preparing the intermediates, and processes for preparing the final product insecticides via a novel bicyclic lactone intermediate are described and exemplified.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: August 17, 1982
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Processes for producing pyrethroid insecticide intermediates
    Patent number: 4342694
    Abstract: Processes for producing a (1.alpha., 4.alpha., 5.alpha.)-6,6-dimethyl-4-halo-substituted-methyl-3-oxabicyclo[3.1.0]hexan- 2-one and its novel intermediates from known and inexpensive starting materials are described and exemplified. The halomethyl bicyclic lactone is a useful intermediate for the preparation of insecticidal cis-3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates or cis-3-(2-halo-2-trihalomethylethenyl)-2,2-dimethylcyclopropanecarboxylates .
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: August 3, 1982
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Process to bicyclic lactones
    Patent number: 4283341
    Abstract: Lactones of the formula ##STR1## wherein R is hydrogen or a CX.sub.3 group, and each X is a chlorine or bromine atom, are converted to the known cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acids or lower alkyl esters, from which pyrethroid insecticides are obtained.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: August 11, 1981
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Daiei Tunemoto
  • Antiallergic method
    Patent number: 4279909
    Abstract: The invention relates to certain 3-substituted-carbonyl (lower) alkyl-2-benzothiazolinone compounds possessing strong antiallergic properties, and to prophylactic and therapeutic treatments by administration of said compounds.
    Type: Grant
    Filed: February 13, 1980
    Date of Patent: July 21, 1981
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventor: Toshiyuki Takashima
  • Process for preparing cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acid
    Patent number: 4254282
    Abstract: Lactones of the formula ##STR1## wherein R is hydrogen or a CX.sub.3 group, and each X is a chlorine or bromine atom, are converted to the known cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acids or lower alkyl esters, from which pyrethroid insecticides are obtained.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 3, 1981
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Daiei Tunemoto
  • Bicyclic lactone derivatives
    Patent number: 4237058
    Abstract: Novel intermediates for production of insecticidal cis-3-(2,2-disubstituted-ethenyl)-2,2-dimethylcyclopropanecarboxylates, processes for preparing the intermediates, and processes for preparing the final product insecticides via a novel bicyclic lactone intermediate are described and exemplified.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: December 2, 1980
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Derivatives of 2H-pyran-2-one
    Patent number: 4235780
    Abstract: Processes for producing a (1.alpha., 4.alpha., 5.alpha.)-6,6-dimethyl-4-halo-substituted-methyl-3-oxabicyclo[3.1.0]hexan- 2-one and its novel intermediates from known and inexpensive starting materials are described and exemplified.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: November 25, 1980
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Antiallergic method
    Patent number: 4131681
    Abstract: Compounds of the formula ##STR1## wherein A is lower alkylene and X is halogen, have been found to be useful as antiallergic agents.
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: December 26, 1978
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventor: Toshiyuki Takashima
  • Laminated glass structures and process for production thereof
    Patent number: 4020217
    Abstract: A laminated safety glass structure which comprises at least two glass sheets bonded to each other through an interlayer of a plasticized polyvinyl acetal resin treated with a specific modified siloxane alone or together with a specific alkali metal or alkaline earth metal salt of an organic mono- or di-carboxylic acid. This structure has a highly improved penetration resistance along with superior transparency, aging resistance and weatherability, and is suitable for use as windowpanes in transportation facilities and buildings.
    Type: Grant
    Filed: March 7, 1975
    Date of Patent: April 26, 1977
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Isao Karasudani, Toshiyuki Takashima, Yoshiyuki Bokuda