Patents by Inventor Kazuya Yokota
Kazuya Yokota 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: 20240262376Abstract: A driver assistance system includes a calculation unit for calculating a cruising range as a distance at which an electric vehicle can travel with a current remaining charged amount of the electric vehicle, and an information presentation unit for displaying, on a display, a reachable range from a current position of the vehicle. The calculation unit calculates an open road cruising range in a case where an open road is used and/or an expressway cruising range in a case where an expressway is used. The information presentation unit displays an open road reach range and an expressway reach range such that an end point of the expressway reach range in a case where the expressway is used is located closer to the current position of the vehicle than an outer edge of the open road reach range in a case where the open road is used.Type: ApplicationFiled: December 28, 2023Publication date: August 8, 2024Inventors: Shinya Miwa, Minoru Suzuki, Kazuya Yokota, Hiromitsu Ishibashi
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Patent number: 11721479Abstract: A rare earth magnet including a magnetic phase having the composition represented by (Nd(1?x?y)LaxCey)2(Fe(1?z)Coz)14B. When the saturation magnetization at absolute zero and the Curie temperature calculated by Kuzmin's formula based on the measured values at finite temperature and the saturation magnetization at absolute zero and the Curie temperature calculated by first principles calculation are respectively subjected to data assimilation. The saturation magnetization M(x, y, z, T=0) at absolute zero and the Curie temperature obtained by machine learning using the assimilated data group are applied again to Kuzmin's formula and the saturation magnetization at finite temperature is represented by a function M(x, y, z, T), x, y, and z of the formula in an atomic ratio are in a range of satisfying M(x, y, z, T)>M(x, y, z=0, T) and 400?T?453.Type: GrantFiled: August 24, 2020Date of Patent: August 8, 2023Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYOInventors: Kazuya Yokota, Tetsuya Syoji, Noritsugu Sakuma, Takashi Miyake, Yosuke Harashima, Hisazumi Akai, Naoki Kawashima, Keiichi Tamai, Munehisa Matsumoto
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Patent number: 11656086Abstract: Vehicle speed data of a plurality of vehicles registered for each link of map information and respective average vehicle speeds calculated from the vehicle speed data are acquired, and the links are divided into vehicle speed groups according to the magnitude of the average vehicle speed. For each of the vehicle speed groups, the vehicle speed data of the plurality of vehicles is collectively subjected to frequency distribution analysis, and a predicted vehicle speed transition simulating a change in vehicle speed is calculated for each of the vehicle speed groups. An electricity consumption rate model of the vehicle is applied to the calculated predicted vehicle speed transition to predict an electricity consumption rate corresponding to the average vehicle speed for each of the vehicle speed groups.Type: GrantFiled: February 22, 2022Date of Patent: May 23, 2023Assignee: Honda Motor Co., Ltd.Inventors: Kazuya Yokota, Kosuke Higashitani
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Publication number: 20220291004Abstract: Vehicle speed data of a plurality of vehicles registered for each link of map information and respective average vehicle speeds calculated from the vehicle speed data are acquired, and the links are divided into vehicle speed groups according to the magnitude of the average vehicle speed. For each of the vehicle speed groups, the vehicle speed data of the plurality of vehicles is collectively subjected to frequency distribution analysis, and a predicted vehicle speed transition simulating a change in vehicle speed is calculated for each of the vehicle speed groups. An electricity consumption rate model of the vehicle is applied to the calculated predicted vehicle speed transition to predict an electricity consumption rate corresponding to the average vehicle speed for each of the vehicle speed groups.Type: ApplicationFiled: February 22, 2022Publication date: September 15, 2022Inventors: Kazuya YOKOTA, Kosuke HIGASHITANI
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Publication number: 20210107335Abstract: There is provided a passenger compartment structure that can save power while ensuring thermal comfort of an occupant. The passenger compartment structure allows control of thermal comfort of the occupant in a posture seated on a seat. The passenger compartment structure includes a layered structure constituting at least part of an interior member disposed at a position where the interior member is able to face a lower leg of the occupant. The layered structure disposed in each of a front middle portion, a front lower portion, a frontal lower portion, and a right surface front upper portion having a high geometric factor for the lower leg includes a surface layer, a structural parent layer, and a temperature control mechanism layer interposed between the surface layer and the structural parent layer.Type: ApplicationFiled: February 26, 2019Publication date: April 15, 2021Applicant: MAZDA MOTOR CORPORATIONInventors: Kazuya YOKOTA, Hiroya OCHIAI, Toshihiko OHSUMI, Junji KANEISHI, Tomohiro YOSHIZUE, Toshihiro KASHIMA
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Publication number: 20210065973Abstract: A rare earth magnet including a magnetic phase having the composition represented by (Nd(1?x?y)LaxCey)2(Fe(1?z)Coz)14B. When the saturation magnetization at absolute zero and the Curie temperature calculated by Kuzmin's formula based on the measured values at finite temperature and the saturation magnetization at absolute zero and the Curie temperature calculated by first principles calculation are respectively subjected to data assimilation. The saturation magnetization M(x, y, z, T=0) at absolute zero and the Curie temperature obtained by machine learning using the assimilated data group are applied again to Kuzmin's formula and the saturation magnetization at finite temperature is represented by a function M(x, y, z, T), x, y, and z of the formula in an atomic ratio are in a range of satisfying M(x, y, z, T)>M(x, y, z=0, T) and 400?T?453.Type: ApplicationFiled: August 24, 2020Publication date: March 4, 2021Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYOInventors: Kazuya YOKOTA, Tetsuya SYOJI, Noritsugu SAKUMA, Takashi MIYAKE, Yosuke HARASHIMA, Hisazumi AKAI, Naoki KAWASHIMA, Keiichi TAMAI, Munehisa MATSUMOTO
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Publication number: 20200406708Abstract: A vehicle compartment temperature control device includes: a first interior member including a temperature control mechanism layer that can adjust the temperature of a leg of the occupant in a first region, that is, a front portion and the like. The vehicle compartment temperature control device also includes a second interior member disposed above the first interior member and including a temperature control mechanism layer in a second region, that is, a steering and the like that can adjust the temperature of a part above the leg and is different from the temperature control mechanism layer in the first region. The vehicle compartment temperature control device also includes an ECU. The ECU performs control such that the temperature of the temperature control mechanism layer in the first region is higher than the temperature of the temperature control mechanism layer in the second region.Type: ApplicationFiled: February 26, 2019Publication date: December 31, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Kazuya YOKOTA, Hiroya OCHIAI, Toshihiko OHSUMI, Junji KANEISHI, Tomohiro YOSHIZUE, Toshihiro KASHIMA
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Patent number: 9732648Abstract: An exhaust gas purification catalytic device 1 contains Pt, Pd, and Rh as catalytic metals. The catalytic metal Pt is loaded on silica-alumina which serves as a support, and Pt-loaded silica-alumina obtained by loading the Pt on the silica-alumina is contained in a catalytic layer with which an exhaust gas contacts first.Type: GrantFiled: October 15, 2014Date of Patent: August 15, 2017Assignee: MAZDA MOTOR CORPORATIONInventors: Hiroshi Yamada, Masahiko Shigetsu, Hisaya Kawabata, Yasuhiro Matsumura, Kazuya Yokota, Toshihiko Ohsumi, Takeo Yamauchi, Yusuke Koike
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Hybrid vehicle and method for setting specifications of engine and motor/generator in hybrid vehicle
Patent number: 9446758Abstract: A hybrid vehicle (100) is a parallel hybrid vehicle including a motor/generator (5) arranged between an engine (1) and a transmission (62). The engine (1) is configured to perform lean operation in a low-load operating range. The hybrid vehicle is configured such that a rotation speed at a maximum point of power generation efficiency of the motor/generator (5) is within a rotation speed range (Xa) corresponding to a lower-speed part (a) of a 95% fuel-consumption efficiency operating range (A) of the engine (1).Type: GrantFiled: August 31, 2012Date of Patent: September 20, 2016Assignee: MAZDA MOTOR CORPORATIONInventors: Toshihiko Ohsumi, Junji Kaneishi, Yasuhiko Kato, Mitsugu Mera, Masahiko Fujimoto, Hitoshi Fukuba, Kazuya Yokota -
Publication number: 20160258330Abstract: An exhaust gas purification catalytic device 1 contains Pt, Pd, and Rh as catalytic metals. The catalytic metal Pt is loaded on silica-alumina which serves as a support, and Pt-loaded silica-alumina obtained by loading the Pt on the silica-alumina is contained in a catalytic layer with which an exhaust gas contacts first.Type: ApplicationFiled: October 15, 2014Publication date: September 8, 2016Applicant: MAZDA MOTOR CORPORATIONInventors: Hiroshi YAMADA, Masahiko SHIGETSU, Hisaya KAWABATA, Yasuhiro MATSUMURA, Kazuya YOKOTA, Toshihiko OHSUMI, Takeo YAMAUCHI, Yusuke KOIKE
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HYBRID VEHICLE AND METHOD FOR SETTING SPECIFICATIONS OF ENGINE AND MOTOR/GENERATOR IN HYBRID VEHICLE
Publication number: 20140222275Abstract: A hybrid vehicle (100) is a parallel hybrid vehicle including a motor/generator (5) arranged between an engine (1) and a transmission (62). The engine (1) is configured to perform lean operation in a low-load operating range. The hybrid vehicle is configured such that a rotation speed at a maximum point of power generation efficiency of the motor/generator (5) is within a rotation speed range (Xa) corresponding to a lower-speed part (a) of a 95% fuel-consumption efficiency operating range (A) of the engine (1).Type: ApplicationFiled: August 31, 2012Publication date: August 7, 2014Applicant: MAZDA MOTOR CORPORATIONInventors: Toshihiko Ohsumi, Junji Kaneish, Yasuhiko Kato, Mitsugu Mera, Masahiko Fujimoto, Hitoshi Fukuba, Kazuya Yokota -
Patent number: 8311724Abstract: A valve overlap period is increased as a desired torque of an engine increases by advancing an opening timing of an intake valve at a rate greater than that of retarding a closing timing of an exhaust valve in a low engine-torque area in which the desired torque of the internal combustion engine is relatively low (step S16). The valve overlap period is increased as the desired torque of the engine increases by retarding the closing timing of the exhaust valve at a rate greater than that of advancing the opening timing of the intake valve in a high engine-torque area in which the desired torque of the internal combustion engine is relatively high (step S17). Accordingly, the drivability can be improved by obtaining the proper torque and the smooth torque curve in the wide driving area.Type: GrantFiled: February 11, 2010Date of Patent: November 13, 2012Assignee: Mazda Motor CorporationInventors: Mikihito Fujii, Kazuya Yokota, Naoyuki Yamagata, Kazuaki Narahara
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Patent number: 8053465Abstract: Summary Novel bicycloester derivatives and pharmaceutically acceptable salts thereof have high DPP-IV inhibitory activity. Solving Means The novel bicycloester derivatives are represented by the general formula (1): Pharmaceutically acceptable salts thereof are also included (Example: (2S,4S)-1-[[(N-(4-ethoxycarbonylbicyclo[2.2.2]oct-1-yl)amino]acetyl]-4-fluoropyrrolidine-2-carbonitrile)).Type: GrantFiled: December 8, 2009Date of Patent: November 8, 2011Assignee: Kyorin Pharmaceutical Co., Ltd.Inventors: Yasumichi Fukuda, Yoshikazu Asahina, Kohei Ohata, Kazuya Yokota, Koji Murakami, Toshiyuki Matsui
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Patent number: 8036817Abstract: There is provided a method for starting a spark ignition engine having multiple cylinders. The method may comprise supplying air and fuel for restart into a first cylinder before said engine completely stops, and igniting the mixture of said air and said fuel in said first cylinder in response to an engine restart request, wherein said first cylinder is on an expansion stroke when said engine stops. The method may also include, after said piston in said first cylinder starts moving, injecting fuel into a second cylinder that is on a compression stroke when said engine stops, on a compression stroke where a piston of said second cylinder is moving in a direction opposite to an operative direction of said piston in said first cylinder.Type: GrantFiled: November 25, 2008Date of Patent: October 11, 2011Assignee: Mazda Motor CorporationInventors: Noriyuki Ota, Masahiko Fujimoto, Yasushi Murakami, Keiji Araki, Kazuya Yokota
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Publication number: 20100217504Abstract: A valve overlap period is increased as a desired torque of an engine increases by advancing an opening timing of an intake valve at a rate greater than that of retarding a closing timing of an exhaust valve in a low engine-torque area in which the desired torque of the internal combustion engine is relatively low (step S16). The valve overlap period is increased as the desired torque of the engine increases by retarding the closing timing of the exhaust valve at a rate greater than that of advancing the opening timing of the intake valve in a high engine-torque area in which the desired torque of the internal combustion engine is relatively high (step S17). Accordingly, the drivability can be improved by obtaining the proper torque and the smooth torque curve in the wide driving area.Type: ApplicationFiled: February 11, 2010Publication date: August 26, 2010Applicant: MAZDA MOTOR CORPORATIONInventors: Mikihito FUJII, Kazuya YOKOTA, Naoyuki YAMAGATA, Kazuaki NARAHARA
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Patent number: 7754757Abstract: Novel bicycloester derivatives and pharmaceutically acceptable salts thereof have high DPP-IV inhibitory activity. The novel bicycloester derivatives are represented by the general formula (1): Pharmaceutically acceptable salts thereof are also included (Example: (2S,4S)-1-[[N-(4-ethoxycarbonylbicyclo[2.2.2]oct-1-yl)amino]acetyl]-4-fluoropyrrolidine-2-carbonitrile)).Type: GrantFiled: February 1, 2005Date of Patent: July 13, 2010Assignee: Kyorin Pharmaceutical Co., Ltd.Inventors: Yasumichi Fukuda, Yoshikazu Asahina, Kohei Ohata, Kazuya Yokota, Koji Murakami, Toshiyuki Matsui
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Publication number: 20100093825Abstract: Summary Novel bicycloester derivatives and pharmaceutically acceptable salts thereof have high DPP-IV inhibitory activity. Solving Means The novel bicycloester derivatives are represented by the general formula (1): Pharmaceutically acceptable salts thereof are also included (Example: (2S,4S)-1-[[(N-(4-ethoxycarbonylbicyclo[2.2.2]oct-1-yl)amino]acetyl]-4-fluoropyrrolidine-2-carbonitrile)).Type: ApplicationFiled: December 8, 2009Publication date: April 15, 2010Inventors: Yasumichi Fukuda, Yoshikazu Asahina, Kohei Ohata, Kazuya Yokota, Koji Murakami, Toshiyuki Matsui
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Patent number: 7514571Abstract: A novel bicyclo derivative represented by the following general formula (1), or a pharmaceutically acceptable salt thereof, acts as an effective DPP-IV inhibitor: One example is (2S,4S)-1-[[N-(4-methylbicyclo[2,2,2]oct-1-yl)amino]acetyl]-4-fluoropyrrolidine-2-carbonitrile).Type: GrantFiled: February 22, 2005Date of Patent: April 7, 2009Assignee: Kyorin Pharmaceutical Co., Ltd.Inventors: Yasumichi Fukuda, Yoshikazu Asahina, Kazuya Yokota, Koji Murakami, Tomohiro Ide
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Publication number: 20090088958Abstract: There is provided a method for starting a spark ignition engine having multiple cylinders. The method may comprise supplying air and fuel for restart into a first cylinder before said engine completely stops, and igniting the mixture of said air and said fuel in said first cylinder in response to an engine restart request, wherein said first cylinder is on an expansion stroke when said engine stops. The method may also include, after said piston in said first cylinder starts moving, injecting fuel into a second cylinder that is on a compression stroke when said engine stops, on a compression stroke where a piston of said second cylinder is moving in a direction opposite to an operative direction of said piston in said first cylinder.Type: ApplicationFiled: November 25, 2008Publication date: April 2, 2009Applicant: Mazda Motor CorporationInventors: Noriyuki Ota, Masahiko Fujimoto, Yasushi Murakami, Keiji Araki, Kazuya Yokota
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Patent number: 7461621Abstract: There is provided a method of starting a spark ignition engine having multiple cylinders. The method comprises supplying air and fuel for restart into a first cylinder before the engine completely stops, and igniting the mixture of the air and the fuel in the first cylinder in response to an engine start request. In accordance with the method, by supplying air and fuel into the first cylinder before the engine completely stops, the mixture of air and fuel in the first cylinder may be homogeneous at the time of the engine start request. Also, there may be less mixture turbulence and combustion may propagate better within the cylinder. These conditions may reduce the rate of combustion in the first cylinder after a start request is initiated. The slower combustion rate may decrease temperature of the combusted gas while the cylinder wall temperature is relatively low because the engine has stopped.Type: GrantFiled: September 19, 2006Date of Patent: December 9, 2008Assignee: Mazda Motor CorporationInventors: Noriyuki Ota, Masahiko Fujimoto, Yasushi Murakami, Keiji Araki, Kazuya Yokota