Patents by Inventor Yasuhiro Haba
Yasuhiro Haba 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: 8715878Abstract: The present invention provides a method for manufacturing an MEA with high production efficiency. It is a feature of the present invention that the method for manufacturing an MEA includes coating a first catalyst ink on a substrate to form a coated layer of the first catalyst ink, removing the solvent in the coated layer of the first catalyst ink to form a first electrode catalyst layer, coating an electrolyte ink on the first electrode catalyst layer to form a coated layer of the electrolyte ink, removing the solvent in the coated layer of the electrolyte ink to form a polymer electrolyte membrane, coating a second catalyst ink on the polymer electrolyte membrane to form a coated layer of the second catalyst ink, and removing the solvent in the coated layer of the second catalyst ink to form a second electrode catalyst layer.Type: GrantFiled: September 1, 2009Date of Patent: May 6, 2014Assignee: Toppan Printing Co., Ltd.Inventors: Masashi Oota, Yasuhiro Haba
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Patent number: 8614028Abstract: [Problem] To provide a membrane and electrode assembly comprising a catalyst layer that improves water holding properties and exhibits high power generation characteristics even in low humidified conditions without inhibiting removal of the water generated by the electrode reaction, etc. and its manufacturing method. [Solution] The membrane and electrode assembly produced by sandwiching a polymer electrolyte membrane between a pair of catalyst layers is provided, in which the catalyst layer comprises a polymer electrolyte and particles carrying a catalyst material, and in which the proportion of the polymer electrolyte expressed by {(mass of polymer electrolyte)/(mass of particles in particles carrying catalyst material)} in the catalyst layer is decreased toward the polymer electrolyte membrane (the inside) from the surface of the catalyst layer (the outside).Type: GrantFiled: June 25, 2008Date of Patent: December 24, 2013Assignee: Toppan Printing Co., Ltd.Inventors: Hiroyuki Morioka, Yasuhiro Haba, Saori Okada, Keiichi Iio
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Publication number: 20130057806Abstract: The liquid crystal display device includes a liquid crystal cell, a backlight device, a first light diffusing layer, a first polarizer, and a second light diffusing layer. The first light diffusing layer includes a light diffusing plate and a prism sheet, and has light distribution characteristics such that a luminance value in a direction of 70 degrees with respect to a normal of a light incidence plane of the liquid crystal cell is 20% or less with respect to a luminance value in a direction of the normal. The second light diffusing layer includes a second polarizer and a light diffusing membrane. The backlight device is divided into a plurality of regions and is capable of controlling luminance per region.Type: ApplicationFiled: August 31, 2012Publication date: March 7, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Akiyoshi Kanemitsu, Tomonori Miyamoto, Motohiro Yamahara, Yasuhiro Haba
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Publication number: 20130045438Abstract: The present invention provides a producing method of a fuel cell membrane electrode assembly and a producing apparatus of the same, without generating wrinkles on a solid polymer electrolyte membrane or misalignment of electrode catalyst layers opposite to each other.Type: ApplicationFiled: January 18, 2011Publication date: February 21, 2013Inventor: Yasuhiro Haba
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Publication number: 20130044278Abstract: In a liquid crystal display device, display with a wide viewing angle and high color reproducibility is achieved and superior contrast is obtained. In addition, a viewing angle is enlarged without using a retarder. The liquid crystal display device comprises a liquid crystal cell 1, a backlight device 2, a first light diffusing layer 3, a first polarizer 4, and a second light diffusing layer 5. The first light diffusing layer 3 comprises a light diffusing plate 31 and a prism sheet 32. The first light diffusing layer 3 has light distribution characteristics such that a luminance value in a direction of 70 degrees with respect to a normal of a light incidence plane of the liquid crystal cell is 20% or less with respect to a luminance value in a direction of the normal. The second light diffusing layer 5 comprises a second polarizer 51 and a light diffusing membrane 52. In addition, the backlight device 2 is divided into a plurality of regions and is capable of controlling luminance per region.Type: ApplicationFiled: February 23, 2011Publication date: February 21, 2013Inventors: Akiyoshi Kanemitsu, Tomonori Miyamoto, Motohiro Yamahara, Yasuhiro Haba
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Publication number: 20110279752Abstract: The present invention provides an optical film which is capable of impeding the occurrence of a failure of display quality at wide view angles, impeding the occurrence of the degradation of the front contrast, achieving a high transmission image definition, and impeding the occurrence of scintillation, and a liquid crystal display device comprising the same. On a substrate film 71, an anti-glare layer 72 in which translucent fine particles 722 are dispersed and mixed in a translucent resin 721 is laminated. The average particle size of the translucent fine particles 722 is set at 0.5 ?m or more and less than 5 ?m, and the content of the translucent fine particles 722 is set at 35 parts by weight or more and 60 parts by weight or less in relation to 100 parts by weight of the translucent resin. The layer thickness of the anti-glare layer 72 is set at one or more and three or less times the average particle size of the translucent fine particles 722.Type: ApplicationFiled: December 18, 2009Publication date: November 17, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Motohiro Yamahara, Yasuhiro Haba, Tomonori Miyamoto
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Publication number: 20110273644Abstract: The present invention provides a liquid crystal display device comprising an optical film capable of impeding the occurrence of a failure of display quality at wide view angles, enhancing the front contrast and the transmission image definition, and impeding the occurrence of scintillation. On a substrate film 71, an anti-glare layer 72 in which translucent fine particles 722 are dispersed and mixed in a translucent resin 721 is laminated. The average particle size of the translucent fine particles 722 is set at 5 ?m or more and less than 20 ?m, and the content of the translucent fine particles 722 is set at 25 parts by weight or more and 50 parts by weight or less in relation to 100 parts by weight of the translucent resin. The layer thickness of the anti-glare layer 72 is set at one or more and three or less times the average particle size of the translucent fine particles 722.Type: ApplicationFiled: December 18, 2009Publication date: November 10, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Motohiro Yamahara, Yasuhiro Haba, Tomonori Miyamoto
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Patent number: 7947411Abstract: To provide a membrane and electrode assembly comprising a catalyst layer that improves water holding properties and exhibits high power generation characteristics even in low humidified conditions without inhibiting the diffusibility of reaction gas, the removal of the water generated by the electrode reaction, and its manufacturing method. There is provided a membrane and electrode assembly produced by sandwiching a polymer electrolyte membrane between a pair of catalyst layers, in which the catalyst layer comprises a polymer electrolyte and particles carrying a catalyst material, and in which the volume of fine pores having a diameter of 1.0 ?m or smaller is increased toward the polymer electrolyte membrane from the surface of the catalyst layer.Type: GrantFiled: June 25, 2008Date of Patent: May 24, 2011Assignee: Toppan Printing Co., Ltd.Inventors: Hiroyuki Morioka, Yasuhiro Haba, Saori Okada, Keiichi Iio
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Publication number: 20100261089Abstract: [Problem] To provide a membrane and electrode assembly comprising a catalyst layer that improves water holding properties and exhibits high power generation characteristics even in low humidified conditions without inhibiting removal of the water generated by the electrode reaction, etc. and its manufacturing method. [Solution] The membrane and electrode assembly produced by sandwiching a polymer electrolyte membrane between a pair of catalyst layers is provided, in which the catalyst layer comprises a polymer electrolyte and particles carrying a catalyst material, and in which the proportion of the polymer electrolyte expressed by {(mass of polymer electrolyte)/(mass of particles in particles carrying catalyst material)} in the catalyst layer is decreased toward the polymer electrolyte membrane (the inside) from the surface of the catalyst layer (the outside).Type: ApplicationFiled: June 25, 2008Publication date: October 14, 2010Inventors: Hiroyuki Morioka, Yasuhiro Haba, Saori Okada, Keiichi Iio
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Publication number: 20100062306Abstract: The present invention provides a method for manufacturing an MEA with high production efficiency. It is a feature of the present invention that the method for manufacturing an MEA includes coating a first catalyst ink on a substrate to form a coated layer of the first catalyst ink, removing the solvent in the coated layer of the first catalyst ink to form a first electrode catalyst layer, coating an electrolyte ink on the first electrode catalyst layer to form a coated layer of the electrolyte ink, removing the solvent in the coated layer of the electrolyte ink to form a polymer electrolyte membrane, coating a second catalyst ink on the polymer electrolyte membrane to form a coated layer of the second catalyst ink, and removing the solvent in the coated layer of the second catalyst ink to form a second electrode catalyst layer.Type: ApplicationFiled: September 1, 2009Publication date: March 11, 2010Applicant: Toppan Printing Co., Ltd.Inventors: Masashi Oota, Yasuhiro Haba