Patents by Inventor Hiroo Muramoto

Hiroo Muramoto 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: 7678860
    Abstract: The present invention provides a polymer solid electrolyte excellent in thermal properties, physical properties and ion conductivity and being close to practical level; especially, a totally solid electrolyte and a composition for producing the same.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: March 16, 2010
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hiroo Muramoto, Takeshi Niitani, Koichiro Aoyagi
  • Patent number: 7579401
    Abstract: An object of the present invention is to provide a practical solid polymer electrolyte that exhibits excellent thermal characteristics, physical characteristics, and ionic conductivity, and in particular, to provide a completely solid electrolyte and a copolymer composition that functions as the substrate for producing such an electrolyte. A solid polymer electrolyte comprising an electrolyte salt, and a copolymer in which a block chain A containing a repeating unit represented by a formula (I) shown below, a block chain B containing a repeating unit represented by a formula (II) shown below: (wherein, R9 represents an aryl group), and a block chain C containing a repeating unit represented by a formula (III) shown below: (wherein, R13 represents an aryl group or a heteroaryl group) are arranged in the sequence B, A, C.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: August 25, 2009
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hiroo Muramoto, Takeshi Niitani
  • Publication number: 20070040145
    Abstract: The present invention provides a polymer solid electrolyte excellent in thermal properties, physical properties and ion conductivity and being close to practical level; especially, a totally solid electrolyte and a composition for producing the same.
    Type: Application
    Filed: January 23, 2004
    Publication date: February 22, 2007
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Hiroo Muramoto, Takeshi Nitani, Koichiro Aoyagi
  • Publication number: 20050256256
    Abstract: An object of the present invention is to provide a practical solid polymer electrolyte that exhibits excellent thermal characteristics, physical characteristics, and ionic conductivity, and in particular, to provide a completely solid electrolyte and a copolymer composition that functions as the substrate for producing such an electrolyte. A solid polymer electrolyte comprising an electrolyte salt, and a copolymer in which a block chain A containing a repeating unit represented by a formula (I) shown below, a block chain B containing a repeating unit represented by a formula (II) shown below: (wherein, R9 represents an aryl group), and a block chain C containing a repeating unit represented by a formula (III) shown below: (wherein, R13 represents an aryl group or a heteroaryl group) are arranged in the sequence B, A, C.
    Type: Application
    Filed: July 23, 2003
    Publication date: November 17, 2005
    Applicant: NIPPON SODA CO., LTD
    Inventors: Hiroo Muramoto, Takeshi Niitani
  • Patent number: 6875821
    Abstract: A process for making poly(hydroxystyrene)s whose phenolic hydroxyl groups are partially protected by acid-decomposable or -eliminable groups, by which the degree of deblocking of the phenolic hydroxyl groups is controlled. Namely, the production of a polymer containing, in the molecule, repeating units of the general formula (IA) and those of the general formula (IB), comprising adding an acid to polymer (B) containing in the molecule repeating units of general formula (II) in an organic solvent with the molar ratio of the acid to the OR3 group being 0.0001 equivalent or above but below 0.05 equivalent, and reacting the polymer with the acid. In the general formulae, R1 is hydrogen or methyl; R2 is C1-6 alkyl; R3 is an acid-decomposable or -eliminable group; R4 is hydrogen or a group derived from R3 by decomposition with acid; and p is 0, 1, or 2, with the proviso that the IB/IA molar ratio ranges 98/2 to 30/70.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: April 5, 2005
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hiroo Muramoto, Shinichi Kimizuka
  • Publication number: 20040063863
    Abstract: A process for making poly(hydroxystyrene)s whose phenolic hydroxyl groups are partially protected by acid-decomposable or -eliminable groups, by which the degree of deblocking of the phenolic hydroxyl groups is controlled. Namely, the production of a polymer containing, in the molecule, repeating units of the general formula (IA) and those of the general formula (IB), comprising adding an acid to polymer (B) containing in the molecule repeating units of general formula (II) in an organic solvent with the molar ratio of the acid to the OR3 group being 0.0001 equivalent or above but below 0.05 equivalent, and reacting the polymer with the acid. In the general formulae, R1 is hydrogen or methyl; R2 is C1-6 alkyl; R3 is an acid-decomposable or -eliminable group; R4 is hydrogen or a group derived from R3 by decomposition with acid; and p is 0, 1, or 2, with the proviso that the IB/IA molar ratio ranges 98/2 to 30/70.
    Type: Application
    Filed: July 16, 2003
    Publication date: April 1, 2004
    Inventors: Hiroo Muramoto, Shinichi Kimizuka
  • Patent number: 6218485
    Abstract: A process for producing a monodisperse polymer which has a number-average molecular weight from 1,000 to 100,000 and a molecular weight distribution Mw (weight-average molecular weight)/Mn (number-average molecular weight)=1.00 through 1.50 is disclosed. This process comprises: homopolymerizing or random copolymerizing an anionic polymerizable compound by living anionic polymerization using an organic alkali metal and/or an alkali metal as a polymerization initiator, wherein a target molecular weight is obtained by adding the compound divided into multiple steps.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: April 17, 2001
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hiroo Muramoto, Yukikazu Nobuhara, Eiichiro Kobayashi
  • Patent number: 5798396
    Abstract: The present invention is directed to sulfonium salt-containing compounds represented by a following general formula; ##STR1## wherein R.sub.1 is alkyl containing from 1 to 18 carbon atoms, hydroxy, alkoxy containing from 1 to 18 carbon atoms, alkylcarbonyloxy containing from 1 to 18 carbon atoms or halogen, n is any of 0, 1, 2 or 3, however, each of R.sub.1 may be different from the others when n is 2 or more, R.sub.2 is alkyl containing from 1 to 6 carbon atoms, R.sub.3 and R.sub.4 are each independently hydrogen or alkyl containing from 1 to 6 carbon atoms, R.sub.5 and R.sub.6 are each independently hydrogen, alkyl containing from 1 to 6 carbon atoms, hydroxy, alkoxy containing from 1 to 6 carbon atoms, alkylcarbonyloxy containing from 1 to 18 carbon atoms or aromatic carbonyloxy, and R.sub.7 is alkyl containing from 4 to 20 carbon atoms or a group represented by a following formula; ##STR2## wherein R.sub.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: August 25, 1998
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Eiji Takahashi, Hiroo Muramoto
  • Patent number: 5639903
    Abstract: The present invention is related to sulfonium salt compounds useful as an initiator of cationic polymerization and represented by a following general formula (I): ##STR1## wherein R.sub.1 is benzyl, phenyl, etc., R.sub.2, R.sub.3 and R.sub.4 are each independently hydrogen, alkyl, etc., R.sub.5 is hydrogen, alkyl, phenyl, etc., R.sub.6 is a group represented by a formula, --(CH.sub.2).sub.m --R.sub.11 wherein R.sub.11 is COR.sub.12, COOR.sub.13, OR,.sub.14, nitrile, OCOR.sub.15 or SOR.sub.16, wherein R.sub.12, R.sub.13, R.sub.14, R.sub.15 and R.sub.16 are each independently hydrogen, alkyl or phenyl, m is 0 or 1, and X represents SbF.sub.6, AsF.sub.6, PF.sub.6 or BF.sub.4.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: June 17, 1997
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Eiji Takahashi, Hiroo Muramoto
  • Patent number: 4780507
    Abstract: There is disclosed a thermosetting resin composition comprising a thermosetting cyanate ester resin composition (A) and a butadiene based copolymer (B)(i) or an epoxy resin-modified butadiene based copolymer (B)(ii), in which said component (B)(i) or (B)(ii) are used for modifying said component (A), component (A) and (B) being as follows;(A) a cyanate ester thermosetting resin composition comprising a cyanate ester compound selected from the group consisting of,(i) a polyfunctional cyanate ester having at least two cyanate group in its molecule,(ii) prepolymer of the cyanate ester of (i),(iii) coprepolymer of the cyanate ester of (i) and an amine, and(iv) mixtures thereof, and optionally adding another thermosetting resin,(B)(i) a butadiene based copolymer comprising a butadienaromatic vinytl monomer copolymer having 0.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: October 25, 1988
    Assignees: Mitsubishi Gas Chemical Co. Inc., Nippon Soda Co. Ltd
    Inventors: Morio Gaku, Hidenori Kimbara, Hiroo Muramoto, Shiro Higashida, Fumio Sato
  • Patent number: 4031066
    Abstract: A flexible polybutadiene resin composition having 100 parts of (a), 5 to 120 parts of (b), and 50 to 500 parts of (c), whereA. is a thermosetting resin having a molecular weight of 500 to 100,000 and having the formula:YCH=CX--An.sub.1 --Jn.sub.2 --Gn.sub.3 --D--E--(PBd)--E--D--Gn.sub.3 ].sub.m Jn.sub.2 --An.sub.
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: June 21, 1977
    Assignee: Nippon Soda Company Limited
    Inventors: Atsushi Mori, Hiroo Muramoto