Patents by Inventor Tetsuji Hirano
Tetsuji Hirano 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).
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Patent number: 9418772Abstract: The present invention relates to a binder resin composition for an electrode, including a polyamic acid and a solvent, wherein the polyamic acid is (i) a polyamic acid which includes a tetracarboxylic acid component including 10 to 100 mol % of 4,4?-oxydiphthalic acid and 90 to 0 mol % of 3,3?,4,4?-biphenyltetracarboxylic acid and/or pyromellitic acid and a diamine component including an aromatic diamine having 1 to 4 aromatic rings, (ii) a polyamic acid which includes a tetracarboxylic acid component including 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and a diamine component including 10 to 90 mol % of p-phenylene diamine and 90 to 10 mol % of 4,4?-diaminodiphenyl ether, or (iii) a polyamic acid which includes a tetracarboxylic acid component including 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and a diamine component including 40 mol % or more of a bis[4-(4-aminophenoxy)phenyl] compound.Type: GrantFiled: September 22, 2010Date of Patent: August 16, 2016Assignee: UBE INDUSTRIES, LTD.Inventors: Takeshige Nakayama, Tomonori Nakayama, Seiichirou Takabayashi, Tetsuji Hirano
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Patent number: 9334368Abstract: A first polyimide precursor solution composition contains: (A) a polyamic acid; (B) a carboxylic acid compound having at least three pairs of carboxyl groups within its molecule or an esterified product thereof; and (D) a solvent. A second polyimide precursor solution composition contains the components (A), (B), and (D) of the first polyimide precursor solution composition and additionally containing (C) a carboxylic acid compound having two pairs of carboxyl groups within its molecule or an esterified product thereof. A third polyimide precursor solution composition contains the components of the second polyimide precursor solution composition, wherein the polyamic acid (A) is a polyamic acid having a specific structure.Type: GrantFiled: October 28, 2009Date of Patent: May 10, 2016Assignee: UBE INDUSTRIES, LTD.Inventors: Tetsuji Hirano, Toru Kidosaki
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Patent number: 9005843Abstract: A polymer electrolyte composition of a sulfonated block copolymer (A) having a hydrophilic segment with a sulfonic acid group and a hydrophobic segment with no sulfonic acid group, each segment having an aromatic ring is its main chain, and an aromatic polymer (B) having no sulfonic acid group with a structural unit that is identical to the structural unit contained in the hydrophobic segment of the sulfonated block copolymer is provided. The ion-exchange capacity of the composition can be in a range of 0.5 mmol/g to 2.9 mmol/g. Electrolyte membranes, membrane/electrolyte assemblies, and electrolyte fuel cells utilizing the polymer electrolyte composition are also provide.Type: GrantFiled: March 2, 2012Date of Patent: April 14, 2015Assignee: Ube Industries, Ltd.Inventors: Tetsuji Hirano, Nobuharu Hisano, Tatsuya Arai, Masayuki Kinouchi
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Patent number: 8895185Abstract: A binder resin precursor solution composition for electrode containing at least (A) a polyamic acid having repeating units represented by chemical formulae (1) and (2) in a (1) to (2) molar ratio of 2:8 to 8.5:1.5 and having a tetracarboxylic acid component to diamine component molar ratio of 0.94 to 0.99, (B) a carboxylic acid compound having two pairs of carboxyl groups in the molecule thereof or an ester thereof, and (C) a solvent.Type: GrantFiled: March 31, 2010Date of Patent: November 25, 2014Assignee: Ube Industries, Ltd.Inventors: Tetsuji Hirano, Toru Kidosaki
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Patent number: 8710176Abstract: A method of producing a sulfonated polyarylether block copolymer is provided. The method includes producing a sulfonated polyarylether block copolymer containing a hydrophobic segment having a structural unit represented by formula (5) and a hydrophilic segment having a structural unit having a sulfonic acid groups or derivative thereof incorporated into a structure represented by formula (6). A hydrophilic segment prepolymer having a sulfonic acid group in a potassium salt form and a hydrophobic segment prepolymer are block copolymerized. A proton conductor that includes the sulfonated polyarylether block copolymer is also provided.Type: GrantFiled: March 2, 2012Date of Patent: April 29, 2014Assignee: Ube Industries, Ltd.Inventors: Tetsuji Hirano, Nobuharu Hisano, Tatsuya Arai, Masayuki Kinouchi
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Patent number: 8308970Abstract: An acid-base mixture composed of a base component and an acid component wherein at least either the base component or the acid component is composed of at least two different compounds is characterized in that at least one base in the base component is represented by the formula (1) below. An ion conductor is characterized by being composed of an acid-base mixture which is composed of a base component composed of a base represented by the formula (2) below and an acid component. (In the formula (1), R1, R2 and R3 represent a hydrocarbon group having 1-20 carbon atoms or a hydrogen atom, and at least one of them is a hydrocarbon group.) (In the formula (2), R1, R2 and R3 represent a hydrocarbon group having 1-20 carbon atoms or a hydrogen atom, and R1 and R3 are not the same.Type: GrantFiled: November 12, 2009Date of Patent: November 13, 2012Assignee: UBE Industries, Ltd.Inventors: Tetsuji Hirano, Nobuharu Hisano, Masayuki Kinouchi
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Publication number: 20120264835Abstract: A method of producing a sulfonated polyarylether block copolymer is provided. The method includes producing a sulfonated polyarylether block copolymer containing a hydrophobic segment having a structural unit represented by formula (5) and a hydrophilic segment having a structural unit having a sulfonic acid groups or derivative thereof incorporated into a structure represented by formula (6). A hydrophilic segment prepolymer having a sulfonic acid group in a potassium salt form and a hydrophobic segment prepolymer are block copolymerized. A proton conductor that includes the sulfonated polyarylether block copolymer is also provided.Type: ApplicationFiled: March 2, 2012Publication date: October 18, 2012Applicant: UBE INDUESTIRES, LTD.Inventors: Tetsuji HIRANO, Nobuharu HISANO, Tatsuya ARAI, Masayuki KINOUCHI
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Publication number: 20120168688Abstract: The present invention relates to a binder resin composition for an electrode, including a polyamic acid and a solvent, wherein the polyamic acid is (i) a polyamic acid which includes a tetracarboxylic acid component including 10 to 100 mol % of 4,4?-oxydiphthalic acid and 90 to 0 mol % of 3,3?,4,4?-biphenyltetracarboxylic acid and/or pyromellitic acid and a diamine component including an aromatic diamine having 1 to 4 aromatic rings, (ii) a polyamic acid which includes a tetracarboxylic acid component including 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and a diamine component including 10 to 90 mol % of p-phenylene diamine and 90 to 10 mol % of 4,4?-diaminodiphenyl ether, or (iii) a polyamic acid which includes a tetracarboxylic acid component including 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and a diamine component including 40 mol % or more of a bis[4-(4-aminophenoxy)phenyl] compound.Type: ApplicationFiled: September 22, 2010Publication date: July 5, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Takeshige Nakayama, Tomonori Nakayama, Seiichirou Takabayashi, Tetsuji Hirano
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Publication number: 20120171598Abstract: A polymer electrolyte composition of a sulfonated block copolymer (A) having a hydrophilic segment with a sulfonic acid group and a hydrophobic segment with no sulfonic acid group, each segment having an aromatic ring is its main chain, and an aromatic polymer (B) having no sulfonic acid group with a structural unit that is identical to the structural unit contained in the hydrophobic segment of the sulfonated block copolymer is provided. The ion-exchange capacity of the composition can be in a range of 0.5 mmol/g to 2.9 mmol/g. Electrolyte membranes, membrane/electrolyte assemblies, and electrolyte fuel cells utilizing the polymer electrolyte composition are also provide.Type: ApplicationFiled: March 2, 2012Publication date: July 5, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Tetsuji HIRANO, Nobuharu HISANO, Tatsuya ARAI, Masayuki KINOUCHI
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Publication number: 20120164557Abstract: A method for producing a polymer electrolyte membrane having a strong acid group or a superstrong acid group is provided. The method includes casting on a support a polymer electrolyte solution containing from 0.0005 to 2 parts by weight of a phosphate ester represented by formula (11) and/or a salt between an amine represented by formula (12) and a phosphate ester represented by formula (11), with respect to 100 parts by weight of a polymer electrolyte; heating the solution until a solvent of the solution is evaporated to form a self-supporting membrane; and removing the self-supporting membrane from the support.Type: ApplicationFiled: March 2, 2012Publication date: June 28, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Tetsuji HIRANO, Nobuharu HISANO, Tatsuya ARAI, Masayuki KINOUCHI
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Patent number: 8188209Abstract: A curable polyimide resin composition containing a polyimide resin obtainable from by a reaction of a reaction mixture containing a diisocyanate compound, a carbonate group-containing diol compound and an imide compound having two terminal hydroxyhydrocarbyl groups gives a cured insulation film having improved characteristics.Type: GrantFiled: March 28, 2006Date of Patent: May 29, 2012Assignee: Ube Industries, Ltd.Inventors: Masahiro Naiki, Ryoichi Takasawa, Shuichi Maeda, Tetsuji Hirano, Masayuki Kinouchi
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Patent number: 8137852Abstract: A liquid electrolyte composed of a base A and phosphoric acid B in a molar ratio A:B in a range of 1:3 to 1:50 having a solidification temperature of lower than ?30° C.; and a composite electrolyte membrane comprising a porous body impregnated with such a liquid electrolyte.Type: GrantFiled: November 8, 2005Date of Patent: March 20, 2012Assignee: Ube Industries, Ltd.Inventors: Tetsuji Hirano, Nobuharu Hisano, Masayuki Kinouchi
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Publication number: 20110305951Abstract: A binder resin precursor solution composition for electrode containing at least (A) a polyamic acid having repeating units represented by chemical formulae (1) and (2) in a (1) to (2) molar ratio of 2:8 to 8.5:1.5 and having a tetracarboxylic acid component to diamine component molar ratio of 0.94 to 0.99, (B) a carboxylic acid compound having two pairs of carboxyl groups in the molecule thereof or an ester thereof, and (C) a solvent.Type: ApplicationFiled: March 31, 2010Publication date: December 15, 2011Applicant: UBE INDUSTRIES, LTD.Inventors: Tetsuji Hirano, Toru Kidosaki
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Publication number: 20110193016Abstract: A first polyimide precursor solution composition contains: (A) a polyamic acid; (B) a carboxylic acid compound having at least three pairs of carboxyl groups within its molecule or an esterified product thereof; and (D) a solvent. A second polyimide precursor solution composition contains the components (A), (B), and (D) of the first polyimide precursor solution composition and additionally containing (C) a carboxylic acid compound having two pairs of carboxyl groups within its molecule or an esterified product thereof. A third polyimide precursor solution composition contains the components of the second polyimide precursor solution composition, wherein the polyamic acid (A) is a polyamic acid having a specific structure.Type: ApplicationFiled: October 28, 2009Publication date: August 11, 2011Applicant: UBE INDUSTRIES, LTD.Inventors: Tetsuji Hirano, Toru Kidosaki
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Patent number: 7923492Abstract: An inexpensive and durable polymer electrolyte composition exhibiting high ionic conductivity even in the absence of water or a solvent, characterized by comprising a molten salt and an aromatic polymer having a carbonyl bond and/or a sulfonyl bond in the main chain thereof and containing a cation exchange group. The aromatic polymer is preferably an aromatic polyether sulfone having a specific structural unit and containing a cation exchange group, an aromatic polyether ketone having a specific structural unit and containing a cation exchange group, or an aromatic polyether sulfone block copolymer and/or an aromatic polyether ketone block copolymer, the block copolymers comprising a hydrophilic segment containing a cation exchange group and a cation exchange group-free hydrophobic segment. The polymer electrolyte composition containing the block copolymer as an aromatic polymer exhibits high structural retention even in high temperatures.Type: GrantFiled: April 23, 2009Date of Patent: April 12, 2011Assignee: UBE Industries, Ltd.Inventors: Masayuki Kinouchi, Tetsuji Hirano, Nobuharu Hisano
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Publication number: 20100113689Abstract: A curable polyimide resin composition containing a polyimide resin obtainable from by a reaction of a reaction mixture containing a diisocyanate compound, a carbonate group-containing diol compound and an imide compound having two terminal hydroxyhydrocarbyl groups gives a cured insulation film having improved characteristics.Type: ApplicationFiled: March 28, 2006Publication date: May 6, 2010Inventors: Masahiro Naiki, Ryoichi Takasawa, Shuichi Maeda, Tetsuji Hirano, Masayuki Kinouchi
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Publication number: 20100112415Abstract: An acid-base mixture composed of a base component and an acid component wherein at least either the base component or the acid component is composed of at least two different compounds is characterized in that at least one base in the base component is represented by the formula (1) below. An ion conductor is characterized by being composed of an acid-base mixture which is composed of a base component composed of a base represented by the formula (2) below and an acid component. (In the formula (1), R1, R2 and R3 represent a hydrocarbon group having 1-20 carbon atoms or a hydrogen atom, and at least one of them is a hydrocarbon group.) (In the formula (2), R1, R2 and R3 represent a hydrocarbon group having 1-20 carbon atoms or a hydrogen atom, and R1 and R3 are not the same.Type: ApplicationFiled: November 12, 2009Publication date: May 6, 2010Applicant: UBE INDUSTRIES, LTD.Inventors: Tetsuji HIRANO, Nobuharu HISANO, Masayuki KINOUCHI
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Patent number: 7687113Abstract: A modified polyimide resin favorably employable for manufacturing an insulation film of an electric-electronic device is composed of recurring units (I) derived from a biphenyltetracarboxylic acid compound, a diamine compound, and a monoamine compound having at least one hydroxyl group and recurring units (II) derived from diisocyanate and polybutadiene having hydroxyl group at each terminal, which optionally contains further recurring units (III) derived from diisocyanate and a compound having hydroxyl group at each terminal and further having a reactive substituent.Type: GrantFiled: September 9, 2005Date of Patent: March 30, 2010Assignee: Ube Industries, Inc.Inventors: Masahiro Naiki, Ryoichi Takasawa, Shuichi Maeda, Tetsuji Hirano, Masayuki Kinouchi
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Publication number: 20090212253Abstract: An inexpensive and durable polymer electrolyte composition exhibiting high ionic conductivity even in the absence of water or a solvent, characterized by comprising a molten salt and an aromatic polymer having a carbonyl bond and/or a sulfonyl bond in the main chain thereof and containing a cation exchange group. The aromatic polymer is preferably an aromatic polyether sulfone having a specific structural unit and containing a cation exchange group, an aromatic polyether ketone having a specific structural unit and containing a cation exchange group, or an aromatic polyether sulfone block copolymer and/or an aromatic polyether ketone block copolymer, the block copolymers comprising a hydrophilic segment containing a cation exchange group and a cation exchange group-free hydrophobic segment. The polymer electrolyte composition containing the block copolymer as an aromatic polymer exhibits high structural retention even in high temperatures.Type: ApplicationFiled: April 23, 2009Publication date: August 27, 2009Applicant: UBE INDUSTRIES, LTD.Inventors: Masayuki Kinouchi, Tetsuji Hirano, Nobuharu Hisano
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Patent number: 7563850Abstract: An inexpensive and durable polyelectrolyte composition includes both an aromatic polymer containing carbonyl linkages and/or sulfonyl linkages in the backbone chain and bearing cation-exchange groups and a fused salt exhibits a high ionic conductivity even in the absence of water or a solvent. The aromatic polymer is preferably an aromatic polyether sulfone comprising specific structural units and bearing cation-exchange groups, an aromatic polyether ketone comprising specific structural units and bearing cation-exchange groups, an aromatic polyether sulfone block copolymer consisting of at least one hydrophilic segment bearing cation-exchange groups and at least one hydrophobic segment free from cation-exchange groups, and/or an aromatic polyether ketone block copolymer consisting of at least one hydrophilic segment bearing cation-exchange groups and at least one hydrophobic segment free from cation-exchange groups.Type: GrantFiled: November 29, 2002Date of Patent: July 21, 2009Assignee: Ube Industries, Ltd.Inventors: Masayuki Kinouchi, Tetsuji Hirano, Nobuharu Hisano