Patents by Inventor Shizuo Tomiyasu

Shizuo Tomiyasu 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).

  • Publication number: 20170334734
    Abstract: The present invention relates to a composition for producing a zinc oxide thin film containing a group 2 element, said composition being a solution in which a partial hydrolysate of an organic zinc compound represented by formula (1) and a group 2 element are dissolved in an organic solvent. The solution can additionally include a group 13 element. Formula (1): R1-Zn-R1 (in the formula, R1 is a straight-chain or branched alkyl group having 1-7 carbon atoms). Provided are: a composition for producing a zinc oxide thin film containing a group 2 element, said composition making it possible to form a zinc oxide thin film containing a group 2 element by performing coating and film formation with one solution; and a production method for the composition.
    Type: Application
    Filed: October 1, 2015
    Publication date: November 23, 2017
    Inventors: Kenichi HAGA, Kouji TOYOTA, Shizuo TOMIYASU, Koichiro INABA
  • Patent number: 9156857
    Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Means for Solving Problem] Use a diethylzinc composition added a compound which has particular carbon-carbon double bond to a diethylzinc.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: October 13, 2015
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Kenichi Haga, Shizuo Tomiyasu, Kohichi Tokudome, Kouji Toyota, Koichiro Inaba
  • Patent number: 9018125
    Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Solving Means] Use a diethylzinc composition added a compound which is added an aromatic compound as an additive which has isopropenyl group bonded as a side chain.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: April 28, 2015
    Assignee: Tosoh Finechem Corporation
    Inventors: Kenichi Haga, Shizuo Tomiyasu, Kohichi Tokudome
  • Publication number: 20140228207
    Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Solving Means] Use a diethylzinc composition added a compound which is added an aromatic compound as an additive which has isopropenyl group bonded as a side chain.
    Type: Application
    Filed: March 31, 2014
    Publication date: August 14, 2014
    Applicant: TOSOH FINECHEM CORPORATION
    Inventors: Kenichi HAGA, Shizuo TOMIYASU, Kohichi TOKUDOME
  • Patent number: 8722561
    Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Solving Means] Use a diethylzinc composition added a compound which is added an aromatic compound as an additive which has isopropenyl group bonded as a side chain.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: May 13, 2014
    Assignee: Tosoh Finechem Corporation
    Inventors: Kenichi Haga, Shizuo Tomiyasu, Kohichi Tokudome
  • Patent number: 8673413
    Abstract: A method for packing a solid organometallic compound into a container for packing the compound is provided, wherein the solid organometallic compound can be stably supplied to a vapor phase epitaxial growth apparatus such as an MOCVD apparatus at a constant concentration for a long period of time. In the method for packing a solid organometallic compound into a container for packing, the compound is composed of grains having a grain size of 8 mm or less and the grains of the compound essentially comprise grains having a grain size of 2.5 to 6 mm.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: March 18, 2014
    Assignee: Tosoh Finechem Corporation
    Inventors: Shizuo Tomiyasu, Kohichi Tokudome, Kenichi Haga
  • Publication number: 20130281724
    Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Means for solving problem] Use a diethylzinc composition added a compound which has particular carbon-carbon double bond to a diethylzinc.
    Type: Application
    Filed: December 15, 2011
    Publication date: October 24, 2013
    Applicant: TOSOH FINECHEM CORPORATION
    Inventors: Kenichi Haga, Shizuo Tomiyasu, Kohichi Tokudome, Kouji Toyota, Koichiro Inaba
  • Publication number: 20120184432
    Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Solving Means] Use a diethylzinc composition added a compound which is added an aromatic compound as an additive which has isopropenyl group bonded as a side chain.
    Type: Application
    Filed: September 1, 2010
    Publication date: July 19, 2012
    Applicant: Tosoh Finechem Corporation
    Inventors: Kenichi Haga, Shizuo Tomiyasu, Kohichi Tokudome
  • Patent number: 8092604
    Abstract: A solid organometallic compound novel filled container stably supplies an apparatus for vapor phase epitaxial growth such as an MOCVD apparatus with a solid organometallic compound over a long term. The solid organometallic compound-filled container has a carrier gas inlet and a carrier gas outlet. The interior of the filled container is separated into a plurality of vertical compartments. A carrier gas introduced via the carrier gas inlet flows through each of the vertical compartments and is then discharged via the carrier gas outlet.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: January 10, 2012
    Assignee: Tosoh Finechem Corporation
    Inventors: Shizuo Tomiyasu, Kohichi Tokudome, Kenichi Haga
  • Publication number: 20090283041
    Abstract: A solid organometallic compound novel filled container stably supplies an apparatus for vapor phase epitaxial growth such as an MOCVD apparatus with a solid organometallic compound over a long term. The solid organometallic compound-filled container has a carrier gas inlet and a carrier gas outlet. The interior of the filled container is separated into a plurality of vertical compartments. A carrier gas introduced via the carrier gas inlet flows through each of the vertical compartments and is then discharged via the carrier gas outlet.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 19, 2009
    Inventors: Shizuo TOMIYASU, Kohichi Tokudome, Kenichi Haga
  • Patent number: 7547363
    Abstract: A solid organometallic compound novel filled container stably supplies an apparatus for vapor phase epitaxial growth such as an MOCVD apparatus with a solid organometallic compound over a long term. The solid organometallic compound-filled container has a carrier gas inlet and a carrier gas outlet. The interior of the filled container is separated into a plurality of vertical compartments. A carrier gas introduced via the carrier gas inlet flows through each of the vertical compartments and is then discharged via the carrier gas outlet.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: June 16, 2009
    Assignee: Tosoh Finechem Corporation
    Inventors: Shizuo Tomiyasu, Kohichi Tokudome, Kenichi Haga
  • Publication number: 20070175397
    Abstract: A method for packing a solid organometallic compound into a container for packing the compound is provided, wherein the solid organometallic compound can be stably supplied to a vapor phase epitaxial growth apparatus such as an MOCVD apparatus at a constant concentration for a long period of time. In the method for packing a solid organometallic compound into a container for packing, the compound is composed of grains having a grain size of 8 mm or less and the grains of the compound essentially comprise grains having a grain size of 2.5 to 6 mm.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 2, 2007
    Inventors: Shizuo Tomiyasu, Kohichi Tokudome, Kenichi Haga
  • Publication number: 20050008799
    Abstract: A novel filled container is provided, which can stably supply an apparatus for vapor phase epitaxial growth such as an MOCVD apparatus with a solid organometallic compound over a long term. The solid organometallic compound-filled container has a carrier gas inlet and a carrier gas outlet. The interior of the filled container is separated into a plurality of vertical compartments. A carrier gas introduced via the carrier gas inlet flows through each of the vertical compartments and is then discharged via the carrier gas outlet.
    Type: Application
    Filed: June 14, 2004
    Publication date: January 13, 2005
    Inventors: Shizuo Tomiyasu, Kohichi Tokudome, Kenichi Haga
  • Patent number: 4525558
    Abstract: A Ziegler type supported catalytic component for polymerization of an .alpha.-olefin is prepared by allowing an organo-magnesium compound expressed by a generic formula of R'MgX' (wherein R' represents a hydrocarbon group having 1 to 20 carbon atoms and X' either a halogen atom chosen out of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) to react with carbon tetrahalide in the presence of an electron donor compound to obtain a solid product through a solid-liquid separation process; by heat treating the separated solid product with a carbon halide; by treating the heat treated solid product with phenols at 90.degree. to 180.degree. C.; and by treating this phenol treated product further with a halogenated titanium compound. Homo- or co-polymerization of an .alpha.-olefin is carried out in the presence of a catalyst composition consisting of the above catalytic component and an organo-aluminum compound. With this catalytic component, stereospecific polymerization of an .alpha.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: June 25, 1985
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Masaru Takitani, Shizuo Tomiyasu, Keikichi Baba
  • Patent number: 4442224
    Abstract: An .alpha.-olefin polymerizing catalytic component is obtained by treating, with alcohol and/or phenol, a solid product obtained by allowing an organo-magnesium compound expressed by a generic formula of R'MgX' (wherein R' represents a hydro-carbon group having 1 to 20 carbon atoms and X' a halogen atom selected from the group consisting of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) to react with a halogenating agent in the presence of an electron donor; by treating the treated matter with a halogen-containing titanium compound, either after heating under reduced pressure or without such heating; and by treating the product further with a mixture or a complex consisting of an organo-aluminum compound, an organic acid ester and a poly-siloxane. Homo- or co-polymerization of an .alpha.-olefin is carried out in the presence of a catalyst system comprising the catalytic component and an organo-aluminum compound.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: April 10, 1984
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Masaru Takitani, Shizuo Tomiyasu, Keikichi Baba
  • Patent number: 4442225
    Abstract: A catalytic component for polymerization of an .alpha.-olefin is prepared through a process wherein a solid product obtained by allowing an organo-magnesium compound or a mixture of an organo-magnesium compound and an organo-aluminum compound or their reaction product to react, in the presence of an electron donor and an .alpha.-olefin, with a mixture of a halogenating agent other than a halogenated titanium compound and a titanium compound or their reaction product is treated with an alcohol and/or a phenol. The treated product may be further treated with a halogenated titanium compound. Homo- or co-polymerization of an .alpha.-olefin is carried out in the presence of a catalyst composition consisting of the catalytic component and an organo-aluminum compound or with a concomitant electron donor used together with the catalyst composition.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: April 10, 1984
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Masaru Takitani, Shizuo Tomiyasu, Keikichi Baba
  • Patent number: 4439541
    Abstract: A catalytic component for polymerization of an .alpha.-olefin is prepared by allowing an organo-magnesium compound expressed by the generic formula of RMgX (wherein R represents a hydrocarbon group having 1 to 20 carbon atoms and X a halogen atom or a hydrocarbon group having 1 to 20 carbon atoms) to react with carbon tetrahalide in the presence of an electron donor compound to obtain a solid product; by treating the solid product with phenols at 90.degree. to 180.degree. C.; and by further treating the phenol treated solid with a halogenated titanium compound. Homo- or co-polymerization of an .alpha.-olefin is carried out in the presence of a catalyst composition consisting of the catalytic component thus prepared and an organo-aluminum compound.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: March 27, 1984
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Masaru Takitani, Shizuo Tomiyasu, Keikichi Baba
  • Patent number: 4439539
    Abstract: A Ziegler type supported catalytic component for polymerization of an .alpha.-olefin is prepared by allowing an organo-magnesium compound expressed by a generic formula of R'MgX' (wherein R' represents a hydrocarbon group having 1 to 20 carbon atoms and X' either a halogen atom chosen out of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) to react wtih carbon tetrahalide in the presence of an electron donor compound to obtain a solid product through a solid-liquid separation process; by heat treating the separated solid product with a carbon halide; by treating the heat treated solid product with phenols at 90.degree. to 180.degree. C.; and by treating this phenol treated product further with a halogenated titanium compound. Homo- or co-polymerization of an .alpha.-olefin is carried out in the presence or a catalyst composition consisting of the above catalytic component and an organo-aluminum compound. With this catalytic component, stereospecific polymerization of an .alpha.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: March 27, 1984
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Masaru Takitani, Shizuo Tomiyasu, Keikichi Baba
  • Patent number: 4416799
    Abstract: An .alpha.-olefin polymerizing catalytic component which has a support capable of supporting a large amount of titanium and has the titanium work efficiently for polymerizing the .alpha.-olefin; and a method for carrying out homo- or co-polymerization of an .alpha.-olefin by using a catalyst system which consists of the catalytic component and an organo-aluminium compound. The catalytic component is obtained basically by allowing an organo-magnesium compound and a carbon tetrahalide to react with each other in the presence of an organic acid ester; by treating a solid product formed through this reaction with an organic compound of phenol; and then by further treating the product with a halogen-containing titanium compound.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: November 22, 1983
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Masaru Takitani, Keikichi Baba, Shizuo Tomiyasu
  • Patent number: 4222894
    Abstract: A titanium trichloride catalytic component manufactured by pulverizing an eutectic mixture or a crystalline compound consisting of titanium trichloride and aluminum chloride or a pulverized matter thereof together with an organic acid or an acid anhydride thereof at a temperature between 35.degree. and 100.degree. C. in the absence of an inert solvent and without any extractive process carried out with such an inert solvent; and a method for carrying out homo-polymerization or co-polymerization of .alpha.-olefin by using a catalyst system consisting of the above mentioned titanium trichloride catalytic component and an organoaluminum compound.
    Type: Grant
    Filed: July 18, 1978
    Date of Patent: September 16, 1980
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Yoshikazu Takahashi, Shizuo Tomiyasu, Masaru Takitani