Patents by Inventor Yoshiharu Hirose
Yoshiharu Hirose 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: 7658538Abstract: A method for evaluating a solder joint portion by means of which a part and a substrate are joined to each other includes a preparation process for preparing the substrate including the solder joint portion, a thermal shock process for applying thermal shock to the solder joint portion multiple times, and an evaluation process for obtaining a change of a crystal grain size in the solder joint portion caused by the application of the thermal shock so as to evaluate a lifespan of the solder joint portion based on the change of the crystal grain size obtained.Type: GrantFiled: March 27, 2008Date of Patent: February 9, 2010Assignee: Aisin Seiki Kabushiki KaishaInventors: Hirofumi Koike, Akikazu Matsumoto, Wataru Yagi, Takefumi Isogai, Yoshiharu Hirose, Hiroaki Kadoura, Juntaro Seki, Hisaaki Takao
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Publication number: 20080240201Abstract: A method for evaluating a solder joint portion by means of which a part and a substrate are joined to each other includes a preparation process for preparing the substrate including the solder joint portion, a thermal shock process for applying thermal shock to the solder joint portion multiple times, and an evaluation process for obtaining a change of a crystal grain size in the solder joint portion caused by the application of the thermal shock so as to evaluate a lifespan of the solder joint portion based on the change of the crystal grain size obtained.Type: ApplicationFiled: March 27, 2008Publication date: October 2, 2008Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hirofumi KOIKE, Akikazu MATSUMOTO, Wataru YAGI, Takefumi ISOGAI, Yoshiharu HIROSE, Hiroaki KADOURA, Juntaro SEKI, Hisaaki TAKAO
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Patent number: 6875815Abstract: Disclosed is a thermosetting powder coating composition comprising (A) a glycidyl group-containing acrylic resin obtained by (co)polymerizing monomers containing an ethylenically unsaturated monomer having a glycidyl group and/or a ?-methylglycidyl group, (B) a polycarboxyl curative, and (C) an alcohol adduct of a styrene/maleic anhydride copolymer. Also disclosed are a cross-linked cured film of the composition and a process for preparing the composition. According to the invention, blending efficiency and dispersibility of the components of a powder coating, particularly those between the resin component and the curative component, are improved without changing a conventional production process of a powder coating, i.e., a process consisting of melt blending, cooling solidification, pulverization and sieving, and thereby a thermosetting powder coating composition, which is capable of forming a cross-linked cured film improved in appearance properties (high gloss, etc.Type: GrantFiled: May 28, 2003Date of Patent: April 5, 2005Assignee: Mitsui Chemicals, Inc.Inventors: Mitsuyuki Mizoguchi, Yoshiharu Hirose
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Patent number: 6762259Abstract: The purpose of the present invention is to provide polymerization catalyst which can produce quite efficiently (co)polymer having number average molecular weight and number of molecules which are accurately controlled in producing method of (co)polymer by the polymerization of polar unsaturated compound, and provide living polymerized (co)polymer obtained according to the producing method. For the purpose, polymerization catalyst composition which comprises the composition comprising organic oxysalt compound and hydroxycarbonyl compound having at least both an alcoholic hydroxyl group and a carbonyl group in the same molecule is provided and the polar unsaturated compound is polymerized by using the polymerization catalyst composition. The composition containing the obtained (co)polymer were able to provide thermosetting powder coating composition having particularly excellent characteristics.Type: GrantFiled: June 12, 2002Date of Patent: July 13, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Tadahito Nobori, Katsuhiko Funaki, Atsushi Shibahara, Makoto Suzuki, Kazumi Mizutani, Hiromi Jouyama, Isao Hara, Takaomi Hayashi, Shinji Kiyono, Setsuko Fujiyoshi, Hiroyuki Sakayama, Mitsuyuki Mizoguchi, Tsuyoshi Matsumoto, Yoshiharu Hirose
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Publication number: 20030225217Abstract: Disclosed is a thermosetting powder coating composition comprising (A) a glycidyl group-containing acrylic resin obtained by (co)polymerizing monomers containing an ethylenically unsaturated monomer having a glycidyl group and/or a &bgr;-methylglycidyl group, (B) a polycarboxyl curative, and (C) an alcohol adduct of a styrene/maleic anhydride copolymer. Also disclosed are a cross-linked cured film of the composition and a process for preparing the composition. According to the invention, blending efficiency and dispersibility of the components of a powder coating, particularly those between the resin component and the curative component, are improved without changing a conventional production process of a powder coating, i.e., a process consisting of melt blending, cooling solidification, pulverization and sieving, and thereby a thermosetting powder coating composition, which is capable of forming a cross-linked cured film improved in appearance properties (high gloss, etc.Type: ApplicationFiled: May 28, 2003Publication date: December 4, 2003Applicant: Mitsui Chemical, Inc.Inventors: Mitsuyuki Mizoguchi, Yoshiharu Hirose
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Publication number: 20030212216Abstract: Disclosed is a thermosetting powder coating composition comprising a glydicyl group-containing acylic copolymer component (A) and a curative component (B) composed of dodecanedioic acid linear polyacid anhydride or tetradecanedioic acid linear polyacid anhydride, wherein the time &Dgr;T required for decrease of the absolute value of a complex elastic modulus (&eegr;*) of said composition from 100000 Pa·s to 5 Pa·s is not more than 200 seconds, said absolute value of a complex elastic modulus being measured by a dynamic viscoelasticity measuring device under the specific conditions. The thermosetting powder coating composition is favorable for clear coating of automotive parts and automotive top clear coating, and exhibits, particularly in coating of a thin-film of 35 to 50 &mgr;m, excellent appearance (smoothness, gloss, transparency, etc.), physical properties of practical level (hardness, scratch/mar resistance, etc.) and chemical properties (acid resistance, solvent resistance, etc.).Type: ApplicationFiled: May 7, 2003Publication date: November 13, 2003Applicant: Mitsui Chemicals, Inc.Inventors: Mitsuyuki Mizoguchi, Keiichi Asami, Yoshiharu Hirose
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Patent number: 5486560Abstract: A variable-modulus material is composed of a polymer whose constituent unit is a thiophene or pyrrole molecule having from one to three C.sub.4-12 alkyl side chains, or a copolymer whose constituent unit is the thiophene or pyrrole molecule and which includes in a main chain thereof a conjugated compound with a K-electron bond directly bonded to the above molecule, and at least one additive (in an amount of 0.5-20 wt % of said polymer) selected from halogens, protonic acids, and transition metal halides. It greatly decreases in modulus upon application of an electric field as low as 5-150 V/mm and restores its original modulus upon removal of the electric field. It is suitable for use as vibration dampers and shock absorbers.Type: GrantFiled: October 11, 1994Date of Patent: January 23, 1996Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Tohru Shiga, Yoshiharu Hirose, Akane Okada, Toshio Kurauchi
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Patent number: 5475043Abstract: A material with variable viscoelasticity is composed of an electrically insulating polymeric material, and fine particles dispersed therein and capable of electric polarization under an applied electric field. The particles may, for example, be of a conjugated and unsaturated organic compound, a polyelectrolyte, or an organometallic complex salt. The material is capable of a reversible change of viscoelasticity depending on the intensity of the applied electric field.Type: GrantFiled: August 4, 1994Date of Patent: December 12, 1995Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Tohru Shiga, Norio Sato, Yoshiharu Hirose, Akane Okada, Takashi Ohta, Toshio Kurauchi
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Patent number: 4931968Abstract: A data correction circuit having arithmetic units installed in a data bus for the purpose of carrying out corrections such as dead-time correction and decay correction. The data correction circuit also includes an address modification storage installed in an address bus for the purpose of changing raw data into a sinogram. As the size of memory matrices for positron ECT grows larger in recent years, software dependent on a CPU is apt to require more time for data processing and prevent image formation from taking place in real-time. The aim of the present invention is to allow data reduction and correction to be carried out in real-time.Type: GrantFiled: May 27, 1988Date of Patent: June 5, 1990Assignee: Shimadzu CorporationInventor: Yoshiharu Hirose
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Patent number: 4435512Abstract: A process for producing a cordierite ceramic product comprises blending a starting cordierite composition which comprises:(a) a clay formulation having a cordierite composition comprising kaolin, talc and aluminium oxide and/or an aluminium compound which is convertible into aluminium oxide;(b) a glass having a cordierite composition;(c) an organic binder; and,(d) water.Type: GrantFiled: November 24, 1981Date of Patent: March 6, 1984Assignees: Nippondenso Co., Ltd., Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kazuyuki Ito, Masami Ouki, Naoto Miwa, Osami Kamigaito, Haruo Doi, Yoshiharu Hirose
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Patent number: 4384989Abstract: Semiconductive barium titanate having a positive temperature coefficient of resistance comprises a barium titanate semiconductor including barium titanate and a small quantity of a doping element, and at least one additive selected from among silicon nitride, titanium nitride, zirconium nitride and silicon carbide. The semiconductive barium titanate of this invention has a sharp rise in the variation of specific resistivity with temperature change and a large specific resistivity ratio in the PTC temperature region, and can be produced with high reproducibility, since a widely differing quantity of the doping element can be effectively added to barium titanate.Type: GrantFiled: April 30, 1982Date of Patent: May 24, 1983Assignee: Kabushiki Kaisha Toyota Chuo KenyushoInventors: Osami Kamigaito, Tatsumi Hioki, Nobuyuki Yamamoto, Yoshiharu Hirose, Haruo Doi
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Patent number: 4295047Abstract: Emission computed tomograph wherein a pluralty of detectors surround an object to be examined so as to detect X- or gamma radiation emitted by said object. In front of each of said detectors there is provided a collimator which comprises a pair of main plates and a subsidiary plate interposed therebetween. The plates are made of a material capable of blocking penetration of the radiation therethrough and so supported as to be swingable over an angle sufficient to cover the whole of said object. The plates of all the collimators are simultaneously swung to the same side and at the same angular speed thereby to change the direction of incidence of said radiation on each of said detectors.Type: GrantFiled: January 16, 1980Date of Patent: October 13, 1981Assignee: Shimadzu CorporationInventors: Kenichiro Koga, Yoshiharu Hirose, Iwao Kanno, Kazuo Uemura, Shuichi Miura
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Patent number: 4289965Abstract: An emission computed tomograph provided with different types of collimators for selective use with different kinds of radionuclides. The different collimators are alternatively brought into operative position in front of the radiation detector in accordance with the kind of radionuclide being used.Type: GrantFiled: January 16, 1980Date of Patent: September 15, 1981Assignee: Shimadzu CorporationInventors: Kenichiro Koga, Yoshiharu Hirose, Iwao Kanno, Kazuo Uemura, Shuichi Miura