Patents by Inventor Takashi Sagawa
Takashi Sagawa 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: 11964620Abstract: A vehicular power supply device to be equipped in a vehicle includes an electric storage unit group, an inverter, a driving motor, a converter, an electric device group, a first switch, and a second switch. The electric storage unit group includes first and second electric storage units. The driving motor is to be coupled to the electric storage unit group via the inverter. The electric device group is to be coupled to the electric storage unit group via the converter. The first switch is to be controlled between a state where the first electric storage unit is coupled to the inverter and a state where the first electric storage unit is coupled to the converter. The second switch is to be controlled between a state where the second electric storage unit is coupled to the inverter and a state where the second electric storage unit is coupled to the converter.Type: GrantFiled: July 8, 2021Date of Patent: April 23, 2024Assignee: SUBARU CORPORATIONInventors: Itaru Seta, Hiroyuki Suzuki, Yosuke Ohtomo, Masaki Komuro, Takashi Kono, Shinya Sagawa, Kazuki Makino
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Patent number: 10336913Abstract: The present invention relates to a curable silicone composition comprising: (A) a diorganopolysiloxane having at least two alkenyl groups in a molecule, (B) at least two types of resinous organopolysiloxanes having different mass average molecular weights, (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, and (D) a hydrosilylation reaction catalyst. The curable silicone composition enables the production of an optical semiconductor device in which the marked viscosity elevation of the resulting composition can be inhibited, in which the fluidity and packing properties are outstanding and that has outstanding gas barrier properties when used as a sealant, and in which the device has outstanding initial optical output efficiency even when organopolysiloxane resin is blended in order to form cured product with moderate hardness and strength.Type: GrantFiled: August 27, 2014Date of Patent: July 2, 2019Assignee: DOW CORNING TORAY CO., LTD.Inventors: Kazuhiro Nishijima, Tomohiro Iimura, Michitaka Suto, Takashi Sagawa, Haruhiko Furukawa
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Patent number: 10035247Abstract: A retrieval apparatus for retrieving a bolt includes a guide including an opening that passes through the guide vertically, a first plate that includes a first end, a second plate that includes a second end, the first end and the second end being arranged facing each other so as to define an adjacent region, on an upper side of the opening. When the bolt is inserted from inside the opening toward the adjacent region, the first plate and the second plate abut against the bolt and pivot upwards, and the first end and the second end abut against a side surface of the bolt and grip the bolt.Type: GrantFiled: April 27, 2016Date of Patent: July 31, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHIInventors: Kazuya Miura, Takashi Sagawa
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Patent number: 9944759Abstract: A curable silicone composition comprising: (A) an organopolysiloxane represented by the average unit formula: (R13SiO1/2)x(R22SiO2/2)y(R3SiO3/2)z (R1 are alkyl groups, alkenyl groups, aryl groups, or aralkyl groups; R2 are alkyl groups or alkenyl groups; R3 is an alkyl group, aryl group, or an aralkyl group, provided that, in a molecule, at least 0.5 mol % of R1 to R3 are the alkenyl groups, at least one of R3 is the aryl group or the aralkyl group; and x, y and z are numbers satisfying: 0.01?x?0.5, 0.01?y?0.4, 0.1?z?0.9, and x+y+z=1); (B) a straight-chain organopolysiloxane having at least two alkenyl groups in a molecule; (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; and (D) a hydrosilylation reaction catalyst. A cured product exhibiting excellent dispersibility of phosphor and having crack resistance is formed.Type: GrantFiled: January 30, 2015Date of Patent: April 17, 2018Assignee: DOW CORNING TORAY CO., LTD.Inventors: Akito Hayashi, Kazuhiro Nishijima, Tomohiro Iimura, Michitaka Suto, Takashi Sagawa, Akihiko Kobayashi
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Patent number: 9752032Abstract: The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane resin having at least two alkenyl groups in a molecule; (B) an organopolysiloxane represented by a general formula; (C) an organosiloxane (C1) having silicon-bonded hydrogen atoms at both molecular terminals, an organopolysiloxane (C2) having at least two silicon-bonded hydrogen atoms in a molecule, or a mixture of components (C1) and (C2); and (D) a hydrosilylation reaction catalyst. The curable silicone composition has excellent handleability and can form a cured product with a high refractive index and low gas permeability when cured.Type: GrantFiled: December 24, 2013Date of Patent: September 5, 2017Assignee: DOW CORNING TORAY CO., LTD.Inventors: Kazuhiro Nishijima, Takashi Sagawa, Tomohiro Iimura, Michitaka Suto, Kasumi Takeuchi, Haruhiko Furukawa, Yoshitsugu Morita
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Patent number: 9688822Abstract: The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane represented by a specific average unit formula, (B) an optional straight-chain organopolysiloxane having at least two alkenyl groups and not having any silicon-bonded hydrogen atoms in a molecule, (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, and (D) a hydrosilylation reaction catalyst. The curable silicone composition has high reactivity and forms a cured product with low gas permeability.Type: GrantFiled: October 23, 2013Date of Patent: June 27, 2017Assignee: DOW CORNING TORAY CO., LTD.Inventors: Michitaka Suto, Takashi Sagawa, Kasumi Takeuchi, Tomohiro Iimura, Kazuhiro Nishijima, Yoshitsugu Morita
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Patent number: 9593277Abstract: A curable silicone composition comprising: (A) an organopolysiloxane represented by the average unit formula: (R13SiO1/2)a(R22SiO2/2)b(R3SiO3/2)c (R1 are alkyl groups, alkenyl groups, aryl groups, or aralkyl groups; R2 are alkyl groups or alkenyl groups; R3 is an alkyl group, aryl group, or an aralkyl group, provided that, in a molecule, at least 0.5 mol % of R1 to R3 are the alkenyl groups, at least one of R3 is the aryl group or the aralkyl group; and a, b, and c are numbers satisfying: 0.01?a?0.5, 0.4?b?0.8, 0.01?c?0.5, and a+b+c=1); (B) an organopolysiloxane that is different from component (A); (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; and (D) a hydrosilylation reaction catalyst. A cured product exhibiting excellent dispersibility of phosphor and having high strength and gas barrier properties is formed.Type: GrantFiled: January 30, 2015Date of Patent: March 14, 2017Assignee: DOW CORNING TORAY CO., LTD.Inventors: Akito Hayashi, Kazuhiro Nishijima, Tomohiro Iimura, Michitaka Suto, Takashi Sagawa, Akihiko Kobayashi
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Publication number: 20160347911Abstract: A curable silicone composition comprising: (A) an organopolysiloxane represented by the average unit formula: (R13SiO1/2)x(R22SiO2/2)y(R3SiO3/2)z (R1 are alkyl groups, alkenyl groups, aryl groups, or aralkyl groups; R2 are alkyl groups or alkenyl groups; R3 is an alkyl group, aryl group, or an aralkyl group, provided that, in a molecule, at least 0.5 mol % of R1 to R3 are the alkenyl groups, at least one of R3 is the aryl group or the aralkyl group; and x, y and z are numbers satisfying: 0.01?x?0.5, 0.01?y?0.4, 0.1?z?0.9, and x+y+z=1); (B) a straight-chain organopolysiloxane having at least two alkenyl groups in a molecule; (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; and (D) a hydrosilylation reaction catalyst. A cured product exhibiting excellent dispersibility of phosphor and having crack resistance is formed.Type: ApplicationFiled: January 30, 2015Publication date: December 1, 2016Inventors: Akito HAYASHI, Kazuhiro NISHIJIMA, Tomohiro IIMURA, Michitaka SUTO, Takashi SAGAWA, Akihiko KOBAYASHI
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Publication number: 20160340580Abstract: A curable silicone composition comprising: (A) an organopolysiloxane represented by the average unit formula: (R13SiO1/2)a(R22SiO2/2)b(R3SiO3/2)c (R1 are alkyl groups, alkenyl groups, aryl groups, or aralkyl groups; R2 are alkyl groups or alkenyl groups; R3 is an alkyl group, aryl group, or an aralkyl group, provided that, in a molecule, at least 0.5 mol % of R1 to R3 are the alkenyl groups, at least one of R3 is the aryl group or the aralkyl group; and a, b, and c are numbers satisfying: 0.01?a?0.5, 0.4?b?0.8, 0.01?c?0.5, and a+b+c=1); (B) an organopolysiloxane that is different from component (A); (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; and (D) a hydrosilylation reaction catalyst. A cured product exhibiting excellent dispersibility of phosphor and having high strength and gas barrier properties is formed.Type: ApplicationFiled: January 30, 2015Publication date: November 24, 2016Inventors: Akito HAYASHI, Kazuhiro NISHIJIMA, Tomohiro IIMURA, Michitaka SUTO, Takashi SAGAWA, Akihiko KOBAYASHI
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Publication number: 20160311118Abstract: A retrieval apparatus for retrieving a bolt includes a guide including an opening that passes through the guide vertically, a first plate that includes a first end, the first end including a first notch that includes a V-shape when the first plate is viewed from above, a second plate that includes a second end, the first end and the second end facing each other so as to define an adjacent region, on an upper side of the opening of the guide. When the bolt is inserted from inside the opening toward the adjacent region, the first plate and the second plate abut against the bolt and pivot upwards, and the first notch and the second end abut against a side surface of the bolt and grip the bolt.Type: ApplicationFiled: April 26, 2016Publication date: October 27, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuya MIURA, Masahiro TASAKA, Takashi SAGAWA
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Publication number: 20160311119Abstract: A retrieval apparatus for retrieving a bolt includes a guide including an opening that passes through the guide vertically, a first plate that includes a first end, a second plate that includes a second end, the first end and the second end being arranged facing each other so as to define an adjacent region, on an upper side of the opening. When the bolt is inserted from inside the opening toward the adjacent region, the first plate and the second plate abut against the bolt and pivot upwards, and the first end and the second end abut against a side surface of the bolt and grip the bolt.Type: ApplicationFiled: April 27, 2016Publication date: October 27, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuya MIURA, Takashi SAGAWA
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Patent number: 9453158Abstract: The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups in a molecule; (B) an organopolysiloxane represented by a general formula; (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; (D) a phosphor; and (E) a hydrosilylation reaction catalyst, to a cured product obtained by curing said composition, and to an optical semiconductor device in which a light emitting element is sealed or coated with a cured product of the aforementioned composition. The curable silicone composition has excellent fluidity and cures to form a cured product in which phosphors are homogeneously dispersed and which has a high refractive index.Type: GrantFiled: February 13, 2014Date of Patent: September 27, 2016Assignee: DOW CORNING TORAY CO. LTD.Inventors: Takashi Sagawa, Masaaki Amako, Maki Itoh, Michitaka Suto, Tomohiro Iimura
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Publication number: 20160208138Abstract: The present invention relates to a curable silicone composition comprising: (A) a diorganopolysiloxane having at least two alkenyl groups in a molecule, (B) at least two types of resinous organopolysiloxanes having different mass average molecular weights, (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, and (D) a hydrosilylation reaction catalyst. The curable silicone composition enables the production of an optical semiconductor device in which the marked viscosity elevation of the resulting composition can be inhibited, in which the fluidity and packing properties are outstanding and that has outstanding gas barrier properties when used as a sealant, and in which the device has outstanding initial optical output efficiency even when organopolysiloxane resin is blended in order to form cured product with moderate hardness and strength.Type: ApplicationFiled: August 27, 2014Publication date: July 21, 2016Inventors: Kazuhiro Nishijima, Tomohiro Iimura, Michitaka Suto, Takashi Sagawa, Haruhiko Furukawa
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Patent number: 9287506Abstract: The present invention provides a fullerene derivative having an electron donating group adjacent to the fullerene nucleus, represented by formula (I) which exhibits a high LUMO energy and a high open circuit voltage based thereon and which is highly compatible with polymers and excellent in charge mobility and charge separation ability: wherein the encircled FL represents fullerene C60 or C70, Donor-Sub represents a substituent having at least one electron donating substituent atom located at a position apart from the fullerene nucleus by two bonds, R is hydrogen, Donor-Sub, an alkyl, cycloalkyl, alkoxy, alkoxy-substituted alkyl, alkoxy-substituted alkoxy, alkylthio-substituted alkoxy, alkylthio, alkylthio-substituted alkylthio, or alkoxy-substituted alkylthio group, having a total carbon atoms of 1 or more and 20 or fewer, or a benzyl or phenyl group, and n is an integer of 1 to 10.Type: GrantFiled: January 17, 2012Date of Patent: March 15, 2016Assignees: JX Nippon Oil & Energy Corporation, Osaka Municipal Technical Research Institute, Kyoto UniversityInventors: Toshinobu Ohno, Yuko Takao, Kazuyuki Moriwaki, Fukashi Matsumoto, Takatoshi Ito, Toshiyuki Iwai, Susumu Yoshikawa, Takashi Sagawa, Soichi Uchida, Satoru Ikeda
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Publication number: 20150368554Abstract: The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups in a molecule; (B) an organopolysiloxane represented by a general formula; (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; (D) a phosphor; and (E) a hydrosilylation reaction catalyst, to a cured product obtained by curing said composition, and to an optical semiconductor device in which a light emitting element is sealed or coated with a cured product of the aforementioned composition. The curable silicone composition has excellent fluidity and cures to form a cured product in which phosphors are homogeneously dispersed and which has a high refractive index.Type: ApplicationFiled: February 13, 2014Publication date: December 24, 2015Inventors: Takashi Sagawa, Masaaki Amako, Maki Itoh, Michitaka Suto, Tomohiro Iimura
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Publication number: 20150344692Abstract: The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane resin having at least two alkenyl groups in a molecule; (B) an organopolysiloxane represented by a general formula; (C) an organosiloxane (C1) having silicon-bonded hydrogen atoms at both molecular terminals, an organopolysiloxane (C2) having at least two silicon-bonded hydrogen atoms in a molecule, or a mixture of components (C1) and (C2); and (D) a hydrosilylation reaction catalyst. The curable silicone composition has excellent handleability and can form a cured product with a high refractive index and low gas permeability when cured.Type: ApplicationFiled: December 24, 2013Publication date: December 3, 2015Inventors: Kazuhiro Nishijima, Takashi Sagawa, Tomohiro Iimura, Michitaka Suto, Kasumi Takeuchi, Haruhiko Furukawa, Yoshitsugu Morita
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Publication number: 20150329681Abstract: The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane represented by a specific average unit formula, (B) an optional straight-chain organopolysiloxane having at least two alkenyl groups and not having any silicon-bonded hydrogen atoms in a molecule, (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, and (D) a hydrosilylation reaction catalyst. The curable silicone composition has high reactivity and forms a cured product with low gas permeability.Type: ApplicationFiled: October 23, 2013Publication date: November 19, 2015Inventors: Michitaka Suto, Takashi Sagawa, Kasumi Takeuchi, Tomohiro Iimura, Kazuhiro Nishijima, Yoshitsugu Morita
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Patent number: 8946353Abstract: A hydrosilylation reaction-curable organopolysiloxane composition comprising (A) a methylpheny-lalkenylpolysiloxane that has at least two alkenyl groups wherein diphenylsiloxane units are no more than 5 mole % and at least 20 mole % is comprised of phenyl groups, (B) a methylphenylhydrogenpolysiloxane that has at least two Si-bonded hydrogen atoms wherein diphenylsiloxane units are no more than 5 mole % and at least 20 mole % is comprised of phenyl groups, and (C) a hydrosilylation reaction catalyst. An optical semiconductor element sealant comprising this composition. An optical semiconductor device sealed with this optical semiconductor element sealant.Type: GrantFiled: October 30, 2009Date of Patent: February 3, 2015Assignee: Dow Corning Toray Co. Ltd.Inventors: Makoto Yoshitake, Takashi Sagawa, Masayoshi Terada
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Patent number: 8846828Abstract: A curable organopolysiloxane composition comprising: (A) a branched-chain organopolysiloxane that contains in one molecule at least three alkenyl groups and at least 30 mole % of all silicon-bonded organic groups in the form of aryl groups; (B) a linear-chain organopolysiloxane that contains aryl groups and has both molecular terminals capped with diorganohydrogensiloxy groups; (C) a branched-chain organopolysiloxane that contains in one molecule at least three diorganohydrogensiloxy groups and at least 15 mole % of all silicon-bonded organic groups in the form of aryl groups; and (D) a hydrosilylation catalyst. The composition is capable of forming a cured body that has a high index of refraction and strong adhesion to substrates.Type: GrantFiled: June 11, 2009Date of Patent: September 30, 2014Assignee: Dow Corning Toray Co. Ltd.Inventors: Takashi Sagawa, Makoto Yoshitake
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Publication number: 20140014882Abstract: The present invention provides a fullerene derivative having an electron donating group adjacent to the fullerene nucleus, represented by formula (I) which exhibits a high LUMO energy and a high open circuit voltage based thereon and which is highly compatible with polymers and excellent in charge mobility and charge separation ability: wherein the encircled FL represents fullerene C60 or C70, Donor-Sub represents a substituent having at least one electron donating substituent atom located at a position apart from the fullerene nucleus by two bonds, R is hydrogen, Donor-Sub, an alkyl, cycloalkyl, alkoxy, alkoxy-substituted alkyl, alkoxy-substituted alkoxy, alkylthio-substituted alkoxy, alkylthio, alkylthio-substituted alkylthio, or alkoxy-substituted alkylthio group, having a total carbon atoms of 1 or more and 20 or fewer, or a benzyl or phenyl group, and n is an integer of 1 to 10.Type: ApplicationFiled: January 17, 2012Publication date: January 16, 2014Applicants: JX NIPPON OIL & ENERGY CORPORATION, KYOTO UNIVERSITY, OSAKA MUNICIPAL TECHNICAL RESEARCH INSTITUTEInventors: Toshinobu Ohno, Yuko Takao, Kazuyuki Moriwaki, Fukashi Matsumoto, Takatoshi Ito, Toshiyuki Iwai, Susumu Yoshikawa, Takashi Sagawa, Soichi Uchida, Satoru Ikeda