Tayanagi
Junichi Tayanagi, Chiyoda-Ku JP
Patent application number | Description | Published |
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20100160598 | PROCESS FOR PRODUCING FLUOROPOLYMER PARTICLES - To provide a process for producing fluoropolymer particles, whereby formation of fine particles is suppressed. | 06-24-2010 |
20110027677 | FUEL CELL SYSTEM - To provide a fuel cell system provided with a polymer electrolyte fuel cell which is excellent in the power generation characteristics under high temperature and low or no humidity conditions. | 02-03-2011 |
20130052561 | POLYMER ELECTROLYTE MEMBRANE AND MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL - To provide a polymer electrolyte membrane and a membrane/electrode assembly for a polymer electrolyte fuel cell, excellent in the durability to hydrogen peroxide or peroxide radicals. | 02-28-2013 |
20130053459 | IONIC POLYMER AND PROCESS FOR ITS PRODUCTION - To obtain an ionic polymer having a high ion exchange capacity and a low moisture content, by simply converting a —SO | 02-28-2013 |
Jun-Ichi Tayanagi, Yokohama-Shi JP
Patent application number | Description | Published |
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20090215938 | PROCESS FOR PRODUCING ELECTROLYTE MATERIAL FOR POLYMER ELECTROLYTE FUEL CELLS, AND MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS - A membrane-electrode assembly for polymer electrolyte fuel cells which is excellent in water repellency and gas diffusivity and which exhibits a high output power density, can be obtained by using, as an electrolyte material for polymer electrolyte fuel cells, a fluoropolymer obtained by contacting a fluoropolymer which is excellent in gas diffusivity and which has alicyclic structures in its main chain and further has sulfonic acid groups, with fluorine gas for fluorination to increase water repellency and stabilize the molecule ends. The above fluoropolymer is preferably made of a copolymer comprising repeating units based on the following monomer A and repeating units based on the following monomer B (wherein Y is a fluorine atom or a trifluoromethyl group, m is an integer of from 0 to 3, p is 0 or 1, and n is an integer of from 1 to 12): | 08-27-2009 |
Jyunichi Tayanagi, Chiyoda-Ku JP
Patent application number | Description | Published |
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20090110967 | ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELL, PROCESS FOR ITS PRODUCTION, MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND METHOD OF OPERATING POLYMER ELECTROLYTE FUEL CELL - An electrolyte membrane for a polymer electrolyte fuel cell, which comprises an ion exchange membrane made of a fluoropolymer having a softening temperature of at least 90° C. and having acidic groups, and contains cerium atoms. | 04-30-2009 |
20090187044 | FLUOROSULFONYL GROUP-CONTAINING COMPOUND, METHOD FOR ITS PRODUCTION AND POLYMER THEREOF - A compound containing two fluorosulfonyl groups which are groups convertible to sulfonic acid groups, an intermediate therefor, and methods for their production with high productivity, are provided. Also provided are a fluorosulfonyl group-containing polymer obtained by polymerizing such a compound, and a sulfonic acid group-containing polymer obtained from such a polymer. | 07-23-2009 |
Jyunichi Tayanagi, Tokyo JP
Patent application number | Description | Published |
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20080275147 | ELECTROLYTE MATERIAL - To provide an electrolyte material having high electrical conductivity (ion exchange capacity) and a high softening temperature. | 11-06-2008 |