Patents by Inventor Keisuke Ohtsuka
Keisuke Ohtsuka 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: 20200392387Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. The motor rotation rate of a compressor (100) can be changed in accordance with an air conditioning load, and thus a high annual performance factor (APF) can be achieved. In addition, an electrolytic capacitor is not required on an output side of a rectifier circuit (21), and thus an increase in the size and cost of the circuit is suppressed.Type: ApplicationFiled: June 26, 2020Publication date: December 17, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Keisuke OHTSUKA, Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Yuzo KOMATSU, Shun OHKUBO, Tatsuya TAKAKUWA, Tetsushi TSUDA
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Publication number: 20200363369Abstract: Provided are a gas sensor element which is not prone to decreased precision of gas detection due to a decrease in temperature of a gas to be measured, and a gas sensor. An aspect of the present invention is a gas sensor element for detecting a specific gas included in a gas to be measured, the gas sensor element being provided with a solid electrolyte, a reference electrode, a measurement electrode, and a gas restricting layer. The thickness dimension WA of a portion of the gas restricting layer that is in contact with the measurement electrode, the thickness dimension WB of a portion of the gas restricting layer that is in contact with the solid electrolyte, and the thickness dimension WC of the measurement electrode satisfy the conditions WB>WA and WB?WA>WC. In a gas sensor element provided with such a gas restricting layer, the heat capacity of the gas restricting layer can be increased without hindering the gas to be measured from reaching the measurement electrode.Type: ApplicationFiled: September 12, 2018Publication date: November 19, 2020Inventors: Mika TANGE, Keisuke NAKAGAWA, Takashi NAKAO, Shigehiro OHTSUKA
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Publication number: 20200363112Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (1), a compressor (100, 200) can be driven without interposing a power conversion device between an AC power source (90, 190) and a motor (70, 170). Thus, it is possible to provide the air conditioner (1) that is environmentally friendly and has a relatively inexpensive configuration.Type: ApplicationFiled: June 26, 2020Publication date: November 19, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Keisuke Ohtsuka, Mitsushi Itano, Daisuke Karube, Yuuki Yotsumoto, Kazuhiro Takahashi, Yuzo Kamatsu, Shun Ohkubo, Tatsuya Takakuwa, Tetsushi Tsuda
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Publication number: 20200355136Abstract: A controller for an engine estimates a temperature of the exhaust gas and controls the engine according to the estimated exhaust temperature. The controller changes the air-fuel ratio to a stoichiometric air-fuel ratio or leaner. The controller calculates the progress of combustion on the basis of signals of sensors, and estimates an exhaust temperature. In the case where the air-fuel ratio is the stoichiometric air-fuel ratio, the controller estimates the exhaust temperature on the basis of the progress of the combustion, the engine temperature, and a first relationship that is at least defined between the progress of the combustion and the exhaust temperature, . In the case where the air-fuel ratio is lean, the controller estimates the exhaust temperature on the basis of the progress of the combustion, the engine temperature, and a second relationship that differs from the first relationship.Type: ApplicationFiled: March 6, 2020Publication date: November 12, 2020Inventors: Keisuke Ohtsuka, Kentaro Kimura, Takeatsu Ito, Tomokuni Kusunoki
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Publication number: 20200332166Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.Type: ApplicationFiled: December 18, 2018Publication date: October 22, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Eiji KUMAKURA, Takuro YAMADA, Atsushi YOSHIMI, Ikuhiro IWATA, Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Tatsuya TAKAKUWA, Yuzo KOMATSU, Shun OHKUBO, Keisuke OHTSUKA, Yoshinari ASANO, Keiji AOTA, Yuuichi YANAGI, Yoshikazu NAKAO, Takeo ABE, Yumi TODA, Tetsushi TSUDA
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Patent number: 10544713Abstract: A control device is configured, if, although the control device has caused a cam switching device to perform a first cam switching operation for switching the profiles of all the valve-driving cams of a plurality of cylinders from a first profile to a second profile, the profiles of all the valve-driving cams of the plurality of cylinders do not coincide with the second profile, to cause the cam switching device to perform a second cam switching operation for switching the profile of the valve-driving cam for at least one or more normal cylinders that are one or more cylinders at which the switching of profiles to the second profile has succeeded.Type: GrantFiled: March 26, 2018Date of Patent: January 28, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinji Sadakane, Hiroyuki Sugihara, Noriyasu Adachi, Keisuke Sasaki, Shigehiro Sugihira, Takayoshi Kawai, Kaoru Ohtsuka
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Patent number: 10513950Abstract: Provided is a control device for an internal combustion engine equipped with a cam switching device including a cam groove provided on the outer peripheral surface of a camshaft and an electromagnetic solenoid type actuator capable of protruding, toward the camshaft, an engagement pin that is engageable with the cam groove. The control device is configured, in causing the cam switching device to perform a cam switching operation, to perform energization of the actuator such that the engagement pin is seated on a forward outer peripheral surface, and to more lower, when an electric current (coil current) flowing through the actuator as a result of the energization is greater, an average electric voltage per unit time applied to the actuator in protruding the engagement pin toward the cam groove from the forward outer peripheral surface.Type: GrantFiled: March 7, 2018Date of Patent: December 24, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyasu Adachi, Keisuke Sasaki, Shigehiro Sugihira, Takayoshi Kawai, Shinji Sadakane, Hiroyuki Sugihara, Kaoru Ohtsuka
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Publication number: 20190236374Abstract: An information processing apparatus (10) includes a time and space information acquisition unit (110) that acquires high-risk time and space information indicating a spatial region with an increased possibility of an accident occurring or of a crime being committed and a corresponding time slot, a possible surveillance target acquisition unit (120) that identifies a video to be analyzed from among a plurality of videos generated by capturing an image of each of a plurality of places, on the basis of the high-risk time and space information, and analyzes the identified video to acquire information of a possible surveillance target, and a target time and space identification unit (130) that identifies at least one of a spatial region where surveillance is to be conducted which is at least a portion of the spatial region or a time slot when surveillance is to be conducted, from among the spatial region and the time slot indicated by the high-risk time and space information, on the basis of the information of theType: ApplicationFiled: April 3, 2019Publication date: August 1, 2019Applicant: NEC CORPORATIONInventors: Junko NAKAGAWA, Ryoma OAMI, Kenichiro IDA, Mika SAITO, Shohzoh NAGAHAMA, Akinari FURUKAWA, Yasumasa OHTSUKA, Junichi FUKUDA, Fumi IKEDA, Manabu MORIYAMA, Fumie EINAGA, Tatsunori YAMAGAMI, Keisuke HIRAYAMA, Yoshitsugu KUMANO, Hiroki ADACHI
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Patent number: 10358498Abstract: The present invention relates to novel antibodies against the FGF receptor 4 (FGFR4) and to the medical use thereof, in particular for the diagnosis prevention or treatment of diseases associated with FGFR expression, over expression or hyperactivity.Type: GrantFiled: August 11, 2015Date of Patent: July 23, 2019Assignees: Daiichi Sankyo Europe GmbH, Daiichi Sankyo Company, LimitedInventors: Reimar Abraham, Keisuke Fukuchi, Tanja Lange, Johannes Bange, Ichiro Watanabe, Shinko Hayashi, Toshiaki Ohtsuka
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Patent number: 10352893Abstract: A gas sensor control apparatus including a gas sensor element, a heater for heating the gas sensor element, and heater energization control means for feedback controlling the supply of electric current to the heater such that the internal resistance of the gas sensor element coincides with a target resistance. The gas sensor element has a solid electrolyte member and an electrode portion including an outside electrode and an inside electrode. At least a portion of the electrode portion is formed of an electrically conductive oxide whose main component is (i) a first perovskite phase which is represented by a composition formula of LaCo1?xNixO3±d (0.300?x?0.600, 0?d?0.4) and has a perovskite-type crystal structure, or (ii) a second perovskite phase which is represented by a composition formula of LaFe1?yNiyO3±d (0.450?y?0.700, 0?d?0.4) and has a perovskite-type crystal structure.Type: GrantFiled: August 29, 2016Date of Patent: July 16, 2019Assignee: NGK SPARK PLUG CO., LTD.Inventors: Keisuke Nakagawa, Shigehiro Ohtsuka, Hisashi Kozuka, Kazuma Ito, Ippei Kato
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Patent number: 10344638Abstract: An internal combustion engine system is provided with a cam switching device including a cam groove provided on the outer peripheral surface or a camshaft and an actuator capable of protruding, toward the camshaft, an engagement pin that is engageable with the cam groove. The internal combustion engine system is configured, in causing the cam switching device to perform a cam switching operation, to control the actuator such that the engagement pin is seated on a forward outer peripheral surface which is located more forward than an end of the cam groove on the forward side with respect to an insert section of the cam groove in the rotational direction of the camshaft.Type: GrantFiled: January 8, 2018Date of Patent: July 9, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke Sasaki, Noriyasu Adachi, Shigehiro Sugihira, Takayoshi Kawai, Shinji Sadakane, Hiroyuki Sugihara, Kaoru Ohtsuka
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Patent number: 10294835Abstract: When a stop request to the engine is issued, it is determined whether or not all of the drive cams are large cams. When it is determined that at least one of the small cams is included in the drive cams, the engine is continued to drive for a while and a switch control for switching the drive cams from the small cams to the large cams is executed within the duration. A self-holding type solenoid is used to switch between the small cams and the large cams. In the switch control, a permission to stop the engine is output at a timing when the “pin protrudable section” of the final cylinder #2 has elapsed.Type: GrantFiled: November 13, 2017Date of Patent: May 21, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kaoru Ohtsuka, Hiroyuki Sugihara, Shinji Sadakane, Noriyasu Adachi, Shigehiro Sugihara, Keisuke Sasaki, Takayoshi Kawai
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Patent number: 8455564Abstract: A dental composition of the present invention includes: a polymerizable monomer component (A); and an amorphous filler (B) having an average particle size of 1 to 20 ?m and including silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. The dental composition contains 20 to 500 parts by weight of the filler (B) per 100 parts by weight of the polymerizable monomer component (A). The dental composition has a viscosity of 10 to 800 Pa·s. It is preferable that the filler (B) contain spherical particles, and that the percentage of the spherical particles in the filler (B) be at least 60%.Type: GrantFiled: April 28, 2009Date of Patent: June 4, 2013Assignees: Kuraray Noritake Dental Inc., JGC Catalysts and Chemicals Ltd.Inventors: Yoshiko Kuboe, Masaki Okubayashi, Koichi Okada, Keisuke Ohtsuka
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Patent number: 8440739Abstract: A dental composition of the present invention includes: a polymerizable monomer (A); an amorphous filler (B) having an average particle size of 1 to 20 ?m and including silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles; and inorganic particles (C) having an average particle size of 0.1 to 1.0 ?m. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. It is preferable that the dental composition contain 50 to 400 parts by weight of the filler (B) and 100 to 400 parts by weight of the inorganic particles (C) per 100 parts by weight of the polymerizable monomer (A).Type: GrantFiled: April 28, 2009Date of Patent: May 14, 2013Assignees: Kuraray Noritake Dental Inc., JGC Catalysts and Chemicals Ltd.Inventors: Masaki Okubayashi, Koichi Okada, Yusuke Takahata, Keisuke Ohtsuka
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Patent number: 8436078Abstract: The present invention provides a dental composition exhibiting both an excellent light diffusion property and excellent transparency, and having high mechanical strength and surface smoothness and gloss after polishing as a cured product and good handling properties as a paste. The present invention is a dental composition including: a polymerizable monomer (A); and an amorphous powder (B). The amorphous powder (B) has an average particle size of 1 to 20 ?m, and includes silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. The difference in refractive index between the cured product of the polymerizable monomer (A) and the amorphous powder (B) is 0.005 to 0.03.Type: GrantFiled: April 28, 2009Date of Patent: May 7, 2013Assignees: Kuraray Noritake Dental Inc., JGC Catalysts and Chemicals Ltd.Inventors: Masaki Okubayashi, Koichi Okada, Yusuke Takahata, Keisuke Ohtsuka
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Patent number: 8247298Abstract: Disclosed is a method of manufacturing a semiconductor device comprising: forming a first layer on a sidewall of a trench formed on a main surface of a semiconductor substrate, filling up the trench with a protective film, etching back the protective film by a dry etching method so that a height of a surface of the protective film is lower than an opening of the trench and removing the first layer exposed by the etching-back.Type: GrantFiled: September 16, 2010Date of Patent: August 21, 2012Assignee: Elpida Memory, Inc.Inventor: Keisuke Ohtsuka
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Patent number: 8182860Abstract: The present invention provides dental fillers having the optical and/or mechanical characteristics required to dental materials, a method of producing the same, and a dental composite material prepared with use of the dental filler. More specifically, the present invention provides a dental filler containing a zirconium silicate compound, especially a zirconium trisilicate compound with a wadeite type crystalline structure and having an average particle diameter in the range from 2 to 50,000 nm, a method of producing the same, a dental composite material containing the dental filler and a hardenable resin selected from an acrylic resin, a methacrylic resin, an epoxy resin, a vinyl resin, a urethane resin and the like.Type: GrantFiled: March 23, 2007Date of Patent: May 22, 2012Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Keisuke Ohtsuka, Yoshifumi Miyano, Hirokazu Tanaka, Eiko Tanaka, legal representative
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Patent number: 8133779Abstract: A conductive film is formed to extend from a bottom and a sidewall of a recess formed in an interlayer insulating film onto a top surface of the interlayer insulating film. Dry etching of the conductive film is performed such that a portion of the conductive film remains on the bottom and sidewall of the recess. The dry etching is also performed such that a deposition film is formed on a top portion of the recess.Type: GrantFiled: October 12, 2009Date of Patent: March 13, 2012Assignee: Elpida Memory, Inc.Inventor: Keisuke Ohtsuka
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Publication number: 20110304950Abstract: An electric double layer capacitor includes a pair of collectors, a separator, a conductive coating film, a polarizable electrode, and an electrolyte solution. The separator is arranged between the collectors. The conductive coating film covers a surface of at least one of the collectors facing the separator. The polarizable electrode is formed as to be in contact with at least a surface of the conductive coating film facing the separator. Preferably, electrolyte solution has a fluorine-containing organic solvent, and is impregnated into the polarizable electrode. Preferably, the capacitor enables an operating voltage of 3.5 V or higher.Type: ApplicationFiled: February 25, 2010Publication date: December 15, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Keisuke Ohtsuka, Kenzou Takahashi, Mai Koyama
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Patent number: 7981513Abstract: A dental filler having the optical and/or mechanical properties satisfying the requirements to a dental material, a method for producing the dental filler, and a dental composite material containing the dental filler. The dental filler comprises microparticles of amorphous inorganic oxide constituted by at least silica-based fine particles covered with a composite oxide comprising zirconium, silicon and oxygen. The dental composite material contains the dental filler and a hardenable resin selected from an acrylic resin, a methacrylic resin, an epoxy resin, a vinyl resin and a urethane resin.Type: GrantFiled: September 13, 2007Date of Patent: July 19, 2011Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Keisuke Ohtsuka, Hirokazu Tanaka, Eiko Tanaka, legal representative