Patents by Inventor Yoshitaka Doi
Yoshitaka Doi 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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Publication number: 20250038440Abstract: To provide an electrical connector for circuit boards capable of implementing a good impedance match while permitting relative movement of the movable housing with respect to the stationary housing. The intermediate portions 15 of the terminals 10 are, at least in part, located in the interior space 25 of the electrical connector for circuit boards 1, the electrical connector for circuit boards 1 has contoured portions 23 made of dielectric material which, relative to the intermediate portions 15, are positioned on the side opposite the interior space 25 and extend along the intermediate portions 15 while being spaced by a clearance from the intermediate portions 15, and the contoured portions 23 are capable of following the intermediate portions 15 when the intermediate portions 15 are resiliently deformed in the connector width direction perpendicular to the terminal array direction.Type: ApplicationFiled: July 26, 2024Publication date: January 30, 2025Inventors: Yoshitaka HAYAKAWA, Kentaro DOI
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Patent number: 9711817Abstract: A polymer electrolyte membrane which comprises a polymer electrolyte having sulfonic acid groups, and contains any one of the following (a) to (c): (a) cerium ions and an organic compound (X) capable of forming an inclusion compound with cerium ions; (b) an inclusion compound (Y) comprising the organic compound (X) including cerium ions; and (c) at least one of cerium ions and the organic compound (X), and the inclusion compound (Y).Type: GrantFiled: September 13, 2007Date of Patent: July 18, 2017Assignee: Asahi Glass Company, LimitedInventors: Eiji Endoh, Yoshitaka Doi
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Patent number: 7828892Abstract: The object of the present invention is to provide an inorganic board whose dimensional stability, anti-freezing and fusing properties, and the like are much improved. To attain this object, an inorganic board is manufactured using a method comprising: preparing a raw material slurry by the dispersing of a cementitious material, silica-containing material, woody reinforcement, and mica in water, forming a papered mat by sheet forming the raw material slurry, pressing the papered mat, and curing the pressed papered mat in an autoclave at a temperature higher than 150° C., wherein the mass ratio of the cementitious inorganic material and silica-containing material is set to be in the range of between 35:65 and 45:55, to promote the curing reaction of the inorganic board and improve its dimensional stability and anti-freezing and fusing properties.Type: GrantFiled: August 29, 2005Date of Patent: November 9, 2010Assignee: Nichiha CorporationInventors: Kazuo Utagaki, Tatsuya Tsugawa, Yoshitaka Doi
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Publication number: 20080118806Abstract: A polymer electrolyte membrane which comprises a polymer electrolyte having sulfonic acid groups, and contains any one of the following (a) to (c): (a) cerium ions and an organic compound (X) capable of forming an inclusion compound with cerium ions; (b) an inclusion compound (Y) comprising the organic compound (X) including cerium ions; and (c) at least one of cerium ions and the organic compound (X), and the inclusion compound (Y).Type: ApplicationFiled: September 13, 2007Publication date: May 22, 2008Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Eiji Endoh, Yoshitaka Doi
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Publication number: 20070245930Abstract: The object of the present invention is to provide an inorganic board whose dimensional stability, anti-freezing and fusing properties, and the like are much improved. To attain this object, an inorganic board is manufactured using a method comprising: preparing a raw material slurry by the dispersing of a cementitious material, silica-containing material, woody reinforcement, and mica in water, forming a papered mat by sheet forming the raw material slurry, pressing the papered mat, and curing the pressed papered mat in an autoclave at a temperature higher than 150° C., wherein the mass ratio of the cementitious inorganic material and silica-containing material is set to be in the range of between 35:65 and 45:55, to promote the curing reaction of the inorganic board and improve its dimensional stability and anti-freezing and fusing properties.Type: ApplicationFiled: August 29, 2005Publication date: October 25, 2007Applicant: NICHIHA CORPORATIONInventors: Kazuo Utagaki, Tatsuya Tsugawa, Yoshitaka Doi
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Publication number: 20070087261Abstract: A membrane-electrode assembly for a polymer electrolyte fuel cell, which comprises an anode and a cathode each having a catalyst layer containing a catalyst powder and an ion exchange resin, and an electrolyte membrane made of an ion exchange membrane disposed between the anode and the cathode, characterized in that the catalyst layer of the anode contains a catalyst powder having a platinum-cobalt alloy supported on a carbon carrier.Type: ApplicationFiled: October 3, 2006Publication date: April 19, 2007Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Eiji Endoh, Yoshitaka Doi, Shinji Terazono
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Patent number: 6724003Abstract: The present invention relates to an electron beam-irradiating reaction apparatus for irradiating a desired object to be treated, such as an exhaust gas, with an electron beam. Conventionally, a scanning tube of an electron beam irradiation device and a reaction device-for receiving the electron beam are rigidly connected. Therefore, excessive stress is applied to a connecting portion between the scanning tube and the reaction device and not only leakage of gas from the connecting portion, but also breakage of a metal window foil provided at an end portion of the scanning tube are likely to occur. In the present invention, to solve such problems, a flexible hermetic sealing member 23 is provided between a portion around the end portion of the scanning tube 12 and a peripheral edge 18a of an electron beam receiving window in a side wall of an electron beam reaction device 18.Type: GrantFiled: July 10, 2001Date of Patent: April 20, 2004Assignee: Ebara CorporationInventors: Yoshitaka Doi, Masao Nomoto, Kazuaki Hayashi, Masahiro Izutsu, Yoshiharu Kageyama, Kyoichi Okamoto
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Patent number: 5985061Abstract: An inorganic board consisting of an inorganic base layer formed by a paper making method and an inorganic surface layer formed by the dry method on said inorganic base layer is provided in the present invention. A synthetic resin emulsion and/or a rubber latex is coated on and permeates said inorganic base layer so as to supply the water to said inorganic surface layer and improve the delamination strength between said inorganic base layer and said inorganic surface layer.Type: GrantFiled: January 20, 1995Date of Patent: November 16, 1999Assignee: Nichiha CorporationInventors: Yoshitaka Doi, Masaki Kanai
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Patent number: 5834722Abstract: The improved method for treating waste gases by exposure to electron beams which comprises adding ammonia to a waste gas containing sulfur oxide (SO.sub.x) and/or nitrogen oxides (NO.sub.x) and thereafter exposing the gas to an electron beam so as to remove the sulfur oxides and/or nitrogen oxides therefrom is characterized by first mixing ammonia gas uniformly with air, then forming a homogeneous gas-liquid mixture from said gaseous mixture and water, and spraying said homogeneous mixture into a reactor. Efficient desulfurization can be realized even if the temperature of the waste gas being treated is fairly high at the exit of the reactor and the concentration of ammonium sulfamate in the by-product ammonium sulfate can be reduced.Type: GrantFiled: November 30, 1995Date of Patent: November 10, 1998Assignees: Ebara Corporation, Japan Atomic Energy Research InstituteInventors: Okihiro Tokunaga, Hideki Namba, Tadashi Tanaka, Yoshimi Ogura, Yoshitaka Doi, Masahiro Izutsu, Shinji Aoki
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Patent number: 5584240Abstract: An embossing apparatus for inorganic board and the method of embossing thereby are provided in the present invention. In the present invention, an uncured mat of inorganic board set on a lower fixed plate is embossed by a flexible mold plate of a upper movable plate wherein the surface of said flexible mold plate divided into a plural number of square patterns enclosed by ridges and said flexible mold plate is bent downward and convexly such that the ridge lines of said ridges on both sides of the lowest part of said flexible mold plate are respectively situated at the same level as the lowest part or higher than the lowest part.Type: GrantFiled: July 25, 1995Date of Patent: December 17, 1996Assignee: Nichiha CorporationInventors: Yoshitaka Doi, Masaki Kanai