Patents by Inventor Takeru Onoda

Takeru Onoda 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: 4335258
    Abstract: Methacrylic acid is produced by oxidative dehydrogenation of isobutyric acid in vapor phase in the presence of a lithium salt of a heteropolyacid or a reduced form of the heteropolyacid.
    Type: Grant
    Filed: January 3, 1980
    Date of Patent: June 15, 1982
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Takeru Onoda, Masayuki Otake, Jutaro Yamaguchi
  • Patent number: 4322314
    Abstract: A cobalt component is separated from a hydroesterification reaction mixture obtained by reacting a polyhydric alcohol with an olefin and carbon monoxide in the presence of a cobalt carbonyl complex and a pyridine base, by contacting (a) pyridine or .gamma.-picoline and (b) water with said reaction mixture containing the cobalt component and the product of a fatty acid ester of the polyhydric alcohol to separate it into two phases consisting of a phase containing the fatty acid ester of polyhydric alcohol and a phase containing a cobalt component.In the process, the weight ratio of pyridine or .gamma.-picoline to the product ester is 0.5 to 5 and the weight ratio of water to pyridine or .gamma.-picoline is 0.05 to 10.
    Type: Grant
    Filed: March 7, 1980
    Date of Patent: March 30, 1982
    Assignees: Mitsubishi Chemical Ind., Lion Corporation
    Inventors: Takeru Onoda, Keisuke Wada, Hironori Kageyama, Hideki Yamanouchi, Kenji Karube
  • Patent number: 4225729
    Abstract: Diacetoxybutane is prepared by a process for hydrogenating diacetoxybutene in the presence of a supported hydrogenation catalyst comprising catalytically reacting diacetoxybutene with hydrogen continuously in an insulation reaction apparatus utilizing a fixed-bed of said hydrogenation catalyst, withdrawing the reaction effluent continuously from said reaction apparatus, circulating at least a part of said reaction effluent to said reaction apparatus while controlling the temperature of influx of said reaction apparatus at a temperature lower than the temperature of efflux from said reaction apparatus by 5.degree. to 100.degree. C.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: September 30, 1980
    Assignee: Mitsubishi Chemical Industries, Limited
    Inventors: Jun Toriya, Ken Shiraga, Takeru Onoda, Akihisa Ohno
  • Patent number: 4146574
    Abstract: Heteropoly-acids suitable for use as a component of a variety of oxidation catalysts are prepared by hydrothermally reacting an aqueous slurry which contains an oxide and/or oxyacid each of molybdenum, vanadium and phosphorus and which may optionally contain an oxide and/or oxyacid of tungsten.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: March 27, 1979
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Takeru Onoda, Masayuki Otake
  • Patent number: 4071568
    Abstract: Glycol monoethers are produced in high yields by reacting an acetal with carbon monoxide and hydrogen in the presence of a catalyst comprising a cobalt compound and a trivalent organic phosphorus compound or a bidentate chelate ligand containing nitrogen or oxygen. An aldehyde or a compound capable or releasing an aldehyde under reaction conditions and an alcohol can be used instead of the acetal.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: January 31, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Takeru Onoda, Shimpei Tomita
  • Patent number: 4061673
    Abstract: Methacrylic acid is manufactured by oxidative dehydrogenation of isobutyric acid in vapor phase in the presence of a supported catalyst containing a heteropolyacid and/or a reduced form of the heteropolyacid. A highly siliceous material having a high water absorbability is used as a carrier for the catalyst to improve the conversion rate and selectivity as well as the catalyst durability.
    Type: Grant
    Filed: July 30, 1976
    Date of Patent: December 6, 1977
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Takeru Onoda, Masayuki Otake
  • Patent number: 4041082
    Abstract: In a process for producing an aldehyde by hydroformylation comprising reacting an olefin with carbon monoxide and hydrogen in the presence of a solution of a rhodium-tertiary phosphine complex catalyst and recycling the catalyst-containing solution to the reaction zone after recovering the aldehyde formed by distillation in a distillation zone, the catalyst inactivated by the hydroformylation is reactivated effectively by treating the catalyst-containing solution with carbon dioxide.
    Type: Grant
    Filed: July 25, 1975
    Date of Patent: August 9, 1977
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Takeru Onoda, Tetsuo Masuyama
  • Patent number: 4033999
    Abstract: A carboxylic ester of a substituted benzene compound having one or two hydroxymethyl groups on the benzene ring is prepared by reacting a benzene compound selected from the group consisting of toluene and xylene, an aliphatic carboxylic acid, and molecular oxygen in the gaseous phase, in the presence of a catalyst, wherein the improvement comprises reacting said reactants over a supported catalyst wherein the active constituents comprise (1) palladium, (2) an antimony component substantially as the oxide thereof and (3) at least one carboxylic acid salt of an alkali metal, alkaline earth metal, zinc, cadmium or lead, on a carrier.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: July 5, 1977
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Takeru Onoda, Keisuke Wada
  • Patent number: 4018816
    Abstract: A methacrylate is prepared by reacting methacrylic acid and an alcohol in vapor phase in the presence of a catalyst. The catalyst is a solid acid catalyst of silica-titania obtained by coprecipitating the same from an aqueous solution of a silicon and a titanium compound.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: April 19, 1977
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Takeru Onoda, Masayuki Otake
  • Patent number: 4016200
    Abstract: A carboxylic ester is prepared by reacting a hydrocarbon selected from monoolefins having 2 to 6 carbon atoms, benzene, toluene and xylene with an aliphatic saturated carboxylic acid having 2 to 4 carbon atoms and molecular oxygen in the vapor phase in the presence of a supported solid catalyst of palladium metal, an antimony component and a carboxylic acid salt of alkali metal, alkaline earth metal, zinc, cadmium, lead or tin, with the improvement comprising: adding said antimony compound to the support of said catalyst by dipping a carrier into an aqueous solution of water-soluble antimony compound selected from the group consisting of antimonic acid, antimonates and antimony complexes of organic acids.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: April 5, 1977
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Takeru Onoda, Keisuke Wada, Masayuki Otake
  • Patent number: 3959354
    Abstract: A phenyl ester and/or phenol is prepared by reacting benzene, a carboxylic acid and molecular oxygen in the presence of an improved catalyst comprising palladium metal, an antimony component and least one carboxylic acid salt of zinc, cadmium, lead or tin supported on a carrier.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: May 25, 1976
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Takeru Onoda, Keisuke Wada
  • Patent number: 3959352
    Abstract: A carboxylic ester is prepared by reacting a hydrocarbon selected from monoolefins having 2 to 6 carbon atoms, benzene, toluene and xylene with an aliphatic saturated carboxylic acid having 2 to 4 carbon atoms and molecular oxygen in the vapor phase in the presence of a supported solid catalyst of palladium metal, an antimony component and a carboxylic acid salt of alkali metal, alkaline earth metal, zinc, cadmium, lead or tin, with the improvement comprising: adding said antimony compound to the support of said catalyst by dipping a carrier into an aqueous solution of a water-soluble antimony compound selected from the group consisting of antimonic acid, antimonates and antimony complexes of organic acids.
    Type: Grant
    Filed: March 7, 1975
    Date of Patent: May 25, 1976
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Takeru Onoda, Keisuke Wada, Masayuki Otake