Patents by Inventor Nobuhisa Miyake

Nobuhisa Miyake 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: 20100160662
    Abstract: For an alkyltin alkoxide catalyst composition used in carbonate production, there is a problem that the alkyltin alkoxide catalyst composition is thermally decomposed by being heated in the production process, changing into an undistillable alkyltin alkoxide catalyst composition containing a high boiling deactivated component and an active component. The present invention provides a method for separating out and recovering the active component from the alkyltin alkoxide catalyst composition as a useful dialkyltin dialkoxide.
    Type: Application
    Filed: February 22, 2007
    Publication date: June 24, 2010
    Inventors: Budianto Bijanto, Nobuhisa Miyake
  • Publication number: 20100113823
    Abstract: An object of the present invention is to provide an isocyanate production process, which is free of the various problems found in the prior art, and which uses a composition containing a carbamic acid ester and an aromatic hydroxy compound when producing isocyanate without using phosgene, as well as a carbamic acid ester composition for transferring or storing carbamic acid ester. The present invention discloses an isocyanate production process including specific steps and using a composition containing a carbamic acid ester and an aromatic hydroxy compound, as well as a composition for transfer or storage of carbamic acid ester comprising the carbamic acid ester and the specific aromatic hydroxy compound.
    Type: Application
    Filed: March 26, 2008
    Publication date: May 6, 2010
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Publication number: 20100069665
    Abstract: An object of the present invention is to provide a process allowing long-term, stable production of isocyanates at a high yield without the various problems found in the prior art during production of isocyanates without using phosgene. The present invention discloses a process for producing an isocyanate by subjecting a carbamic acid ester to a decomposition reaction in the presence of a compound having an active proton and a carbonic acid derivative.
    Type: Application
    Filed: January 10, 2008
    Publication date: March 18, 2010
    Applicant: AHAHI KASEI CHEMICALS CORPORATION
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Publication number: 20100041908
    Abstract: An object of the present invention is to provide a process for producing a dialkyl tin compound from a composition of deactivated forms of a dialkyl tin catalyst, and to provide a process for producing the dialkyl tin catalyst from the dialkyl tin compound and using the dialkyl tin catalyst to produce a carbonic acid ester. According to the present invention, a process for producing a dialkyl tin compound is provided that subjects a composition of the deactivated forms of the dialkyl tin catalyst, formed when producing an ester compound, to an alkyl group redistribution reaction and/or dealkylation reaction.
    Type: Application
    Filed: October 3, 2007
    Publication date: February 18, 2010
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Publication number: 20100029981
    Abstract: An object of the present invention is to provide a process that enables isocyanates to be stably produced over a long period of time at high yield without encountering various problems as found in the prior art when producing isocyanates without using phosgene.
    Type: Application
    Filed: November 16, 2007
    Publication date: February 4, 2010
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Patent number: 7652122
    Abstract: A method for producing an aromatic carbonate, comprising: (1) performing a reaction between an organometal compound and carbon dioxide to obtain a reaction mixture containing a dialkyl carbonate formed by the reaction, (2) separating the dialkyl carbonate from the reaction mixture to obtain a residual liquid, (3) reacting the residual liquid with an alcohol to form at least one organometal compound and form water and removing the water from the organometal compound, and (4) reacting the dialkyl carbonate separated in step (2) with an aromatic hydroxy compound to obtain an aromatic carbonate.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: January 26, 2010
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Nobuhisa Miyake, Tomonari Watanabe, Kazuhiro Onishi, Akihiro Sato
  • Patent number: 7629485
    Abstract: Production of an aromatic carbonic ester through an ester exchange reaction between a starting material and a reactant while distilling by-product alcohols and/or by-product dialkyl carbonates off the reaction system, wherein use is made of a specified catalyst.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: December 8, 2009
    Assignee: Asahi Kasei Chemicals Corporation
    Inventor: Nobuhisa Miyake
  • Publication number: 20090169461
    Abstract: It is an object of the present invention to provide a mixture for recovery utilization or transfer of carbon dioxide gas. According to the present invention, disclosed is a mixture containing carbon dioxide and an alkyltin alkoxide composition containing carbon dioxide complex of an alkyltin alkoxide, the mixture having a composition with a specified ratio.
    Type: Application
    Filed: March 28, 2007
    Publication date: July 2, 2009
    Inventors: Nobuhisa Miyake, Kazuhiro Onishi, Kazuo Tomoyasu, Budianto Bijanto
  • Patent number: 7541482
    Abstract: A process for the production of alkyltin alkoxides which comprises subjecting at least one alkyltin compound selected from among organotin compounds having tin-oxygen-tin linkages as the starting compound and a hydroxyl compound as the reactant to dehydration to obtain an alkyltin alkoxide corresponding to the starting compound and the reactant, characterized by continuously feeding the starting compound and the reactant into a reactor, discharging a water-containing low boiling point component from the reactor, and continuously withdrawing a reaction fluid containing an alkyltin alkoxide as the bottom from the reactor.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: June 2, 2009
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Nobuhisa Miyake, Kazuhiro Onishi, Budianto Bijanto
  • Publication number: 20080275262
    Abstract: A process for the production of alkyltin alkoxides which comprises subjecting at least one alkyltin compound selected from among organotin compounds having tin-oxygen-tin linkages as the starting compound and a hydroxyl compound as the reactant to dehydration to obtain an alkyltin alkoxide corresponding to the starting compound and the reactant, characterized by continuously feeding the starting compound and the reactant into a reactor, discharging a water-containing low boiling point component from the reactor, and continuously withdrawing a reaction fluid containing an alkyltin alkoxide as the bottom from the reactor.
    Type: Application
    Filed: May 18, 2005
    Publication date: November 6, 2008
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Nobuhisa Miyake, Kazuhiro Onishi, Budianto Bijanto
  • Patent number: 7446218
    Abstract: A method for producing a carbonic ester, comprising: (1) performing a reaction between an organometal compound mixture and carbon dioxide, the organometal compound mixture comprising a reactive organometal compound and an unregenerable unreactive compound derived from the reactive organometal compound, to thereby obtain a reaction mixture containing a carbonic ester, the unregenerable unreactive compound, and a regenerable metamorphic organometal compound derived from the reactive organometal compound, (2) separating the reaction mixture into a first portion containing the carbonic ester and the unregenerable unreactive compound, and a second portion containing the regenerable metamorphic organometal compound, and (3) reacting the second portion of the reaction mixture with an alcohol to form an organometal compound mixture and water and removing the water from the organometal compound mixture, the organometal compound mixture comprising a reactive organometal compound and an unregenerable unreactive compound
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: November 4, 2008
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Nobuhisa Miyake, Tomonari Watanabe
  • Patent number: 7435842
    Abstract: A method for producing a carbonic ester, comprising (1) performing a reaction between an organometal compound having a metal-oxygen-carbon linkage and carbon dioxide to obtain a reaction mixture containing a carbonic ester formed by the reaction, (2) separating the carbonic ester from the reaction mixture to obtain a residual liquid, and (3) reacting the residual liquid with an alcohol to form an organometal compound having a metal-oxygen-carbon linkage and form water and removing the water from the organometal compound, wherein the organometal compound obtained in step (3) is recovered for recycle thereof to step (1).
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: October 14, 2008
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Nobuhisa Miyake, Hajime Nagahara
  • Publication number: 20080177099
    Abstract: Production of an aromatic carbonic ester through an ester exchange reaction between a starting material and a reactant while distilling by-product alcohols and/or by-product dialkyl carbonates off the reaction system, wherein use is made of a specified catalyst.
    Type: Application
    Filed: December 16, 2005
    Publication date: July 24, 2008
    Inventor: Nobuhisa Miyake
  • Publication number: 20070055042
    Abstract: A method for producing an aromatic carbonate, comprising: (1) performing a reaction between an organometal compound and carbon dioxide to obtain a reaction mixture containing a dialkyl carbonate formed by the reaction, (2) separating the dialkyl carbonate from the reaction mixture to obtain a residual liquid, (3) reacting the residual liquid with an alcohol to form at least one organometal compound and form water and removing the water from the organometal compound, and (4) reacting the dialkyl carbonate separated in step (2) with an aromatic hydroxy compound to obtain an aromatic carbonate.
    Type: Application
    Filed: June 25, 2004
    Publication date: March 8, 2007
    Inventors: Nobuhisa Miyake, Tomoari Watanabe, Kazuhiro Onishi, Akihiro Sato
  • Publication number: 20050240045
    Abstract: A method for producing a carbonic ester, comprising: (1) performing a reaction between an organometal compound mixture and carbon dioxide, the organometal compound mixture comprising a reactive organometal compound and an unregenerable unreactive compound derived from the reactive organometal compound, to thereby obtain a reaction mixture containing a carbonic ester, the unregenerable unreactive compound, and a regenerable metamorphic organometal compound derived from the reactive organometal compound, (2) separating the reaction mixture into a first portion containing the carbonic ester and the unregenerable unreactive compound, and a second portion containing the regenerable metamorphic organometal compound, and (3) reacting the second portion of the reaction mixture with an alcohol to form an organometal compound mixture and water and removing the water from the organometal compound mixture, the organometal compound mixture comprising a reactive organometal compound and an unregenerable unreactive compound
    Type: Application
    Filed: August 6, 2003
    Publication date: October 27, 2005
    Inventors: Nobuhisa Miyake, Tomonari Watanabe
  • Publication number: 20050080274
    Abstract: A method for producing a carbonic ester, comprising (1) performing a reaction between an organometal compound having a metal-oxygen-carbon linkage and carbon dioxide to obtain a reaction mixture containing a carbonic ester formed by the reaction, (2) separating the carbonic ester from the reaction mixture to obtain a residual liquid, and (3) reacting the residual liquid with an alcohol to form an organometal compound having a metal-oxygen-carbon linkage and form water and removing the water from the organometal compound, wherein the organometal compound obtained in step (3) is recovered for recycle thereof to step (1).
    Type: Application
    Filed: December 27, 2002
    Publication date: April 14, 2005
    Inventors: Nobuhisa Miyake, Hajime Nagahara
  • Patent number: 6297373
    Abstract: A method for acylating a hexakis (arylmethyl) hexaazaisowurtzitane (WB6) by reductively removing the arylmethyl groups in the presence of an acylating agent, characterized by contacting a WB6 (a) with a heterogeneous system reduction catalyst (b) in the presence of an acylating agent (c) and a reducing agent (d) in a solvent (e) for the WB6 (a) to reductively remove the arylmethyl groups from the WB6 (a) and acylate the same, and by preventing the WB6 (a) and the catalyst (b) from being contacted with each other when at least either of the acylating agent (c) and the reducing agent (d) is not present. In this method, the decomposition of the WB6 skeleton, which readily occurs in the beginning of the acylation of the WB6 as a starting material, can be highly effectively inhibited. This method can hence stably produce a tetraacylhexaazaisowurtzitane derivative in a high yield and is industrially advantageous.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: October 2, 2001
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Tamotsu Kodama, Naoko Ishihara, Haruyuki Minoura, Nobuhisa Miyake, Setsuo Yamamatsu
  • Patent number: 6297372
    Abstract: A nitro group-containing hexaazaisowurtzitane derivative represented by the following general formula (I): W An N(6−n)  (I) wherein n is an integer of 4 or 5, A is an acyl group having 1-10 carbon atoms with each acyl group being the same as or different from one or more of the others, N is a nitro group and W is a hexavalent hexaazaisowurtzitane residue represented by the following formula (II): a nitroso group-containing hexaazaisowurtzitane derivative represented by the following general formula (III): W An NS(6−n)  (III) wherein n is an integer of 4 or 5, A is an acyl group having 1-10 carbon atoms with each acyl group being the same as or different from one or more of the others, NS is a nitroso group and W is a hexavalent hexaazaisowurtzitane residue of formula (II) above, and an acyl group-containing hexaazaisowurtzitane derivative represented by the following general formula (IV): W Am H(6−m)  (IV) wherein N is an integer of 4-6,
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: October 2, 2001
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Shuji Kawabe, Hiroshi Miya, Tamotsu Kodama, Nobuhisa Miyake
  • Patent number: 6153749
    Abstract: Disclosed is a method for producing an acyl group-containing hexaazaisowurtzitane derivative represented by the following formula (1),WA.sub.n H.sub.(6-n) (1)wherein n represents an integer of 4 or 6, each A independently represents an acyl group having 1 to 10 carbon atoms, H represents a hydrogen atom, and W represents a hexavalent hexaazaisowurtzitane residue represented by the following formula (2): ##STR1## which comprises: providing a composition system comprising a mixed solvent of a first solvent and a second solvent respectively having high and low dissolving abilities for the desired compound, wherein the mixed solvent has the desired compound dissolved therein; and removing the first solvent having a high dissolving ability from the composition system to thereby deposit crystals of the desired compound. The desired compound, which is useful as a precursor of high performance explosive additive, i.e.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: November 28, 2000
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tamotsu Kodama, Haruyuki Minoura, Nobuhisa Miyake, Setsuo Yamamatsu, Tsutomu Katsumata
  • Patent number: 5699512
    Abstract: A software analysis protection method capable of preventing an illegitimate use of a software reliably, by making a software analysis difficult without complicating or enciphering the software itself. Software parts dividing the software to be used at the user terminal are distributedly stored in the user terminal and the center, and the software parts stored in the center are transmitted to the user terminal and loaded into missing parts among the software parts stored in the user terminal on a memory so as to make the software operable at the user terminal. Then, the software as developed on the memory is operated at the user terminal. The software parts are down-loaded from the center to the user terminal such that an arranged pattern of the software as developed on the memory is changed at each time of a use of the software at the user terminal.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: December 16, 1997
    Assignee: Nippon Telegraph and Telephone Corp.
    Inventors: Kenji Moriyasu, Atsusi Kanai, Nobuhisa Miyake, Atsusi Terauchi, Hironobu Okuyama