Patents by Inventor Takayoshi Nakamura
Takayoshi Nakamura 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: 11945513Abstract: A vehicle body structure provided on a vehicle includes a floor pan and a bracket. On an upper surface of the floor pan, a cushion of a seat on which an occupant of the vehicle is to be seated is to be disposed. A bracket is disposed on an outer end side of a seating position for the occupant in a vehicle width direction of the vehicle on the upper surface of the floor pan, and includes at least one protruding portion protruding upward and extending in a front-rear direction.Type: GrantFiled: March 24, 2022Date of Patent: April 2, 2024Assignee: SUBARU CORPORATIONInventors: Yasuaki Okesaku, Masato Nakamura, Takayoshi Inoue, Koichi Mashiko
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Patent number: 11949288Abstract: An object of the present invention is to provide a wheel drive device capable of suppressing a temperature increase in an electric motor and a power conversion device and suppressing occurrence of a failure of an electric component. Provided are: an electric motor having a stator 60 and a rotor 40; a stator holder 80 that holds the stator 60; a power conversion device 100 that converts power supplied to the electric motor; and a wheel which accommodates the electric motor, the stator holder 80, and the power conversion device 100 on the inner peripheral side. The stator holder 80 includes a flow path 90 through which a cooling medium flows. The flow path 90 is arranged between the stator 60 and the power conversion device 100.Type: GrantFiled: January 8, 2020Date of Patent: April 2, 2024Assignee: Hitachi Astemo, Ltd.Inventors: Takahiro Araki, Kinya Nakatsu, Takayoshi Nakamura, Akihiro Namba, Hiroyuki Ooiwa, Hideki Miyazaki
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Publication number: 20240072266Abstract: Disclosed is a component for solid oxide fuel cells that is excellent in both electrical conductivity and chromium poisoning resistance. As a substrate, a ferritic stainless steel having a chemical composition containing, in mass %, Cr: 14.0% to 32.0% and Al: 2.50% to 7.00% is used. Precious metal particles are coated on a surface of the substrate. The precious metal particles have: an average particle size of 1 ?m or more and 10 ?m or less; a coating thickness of 0.5 ?m or more and 10 ?m or less; and a surface coverage of 1.0% or more.Type: ApplicationFiled: August 31, 2022Publication date: February 29, 2024Applicants: JFE STEEL CORPORATION, TreadStone Technologies, Inc.Inventors: Muhammad FEBRY, Takayoshi YANO, Tetsuyuki NAKAMURA, Akito MIZUTANI, Masataka YOSHINO, Reiko SUGIHARA, Conghua WANG
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Publication number: 20220077731Abstract: An object of the present invention is to provide a wheel drive device capable of suppressing a temperature increase in an electric motor and a power conversion device and suppressing occurrence of a failure of an electric component. Provided are: an electric motor having a stator 60 and a rotor 40; a stator holder 80 that holds the stator 60; a power conversion device 100 that converts power supplied to the electric motor; and a wheel which accommodates the electric motor, the stator holder 80, and the power conversion device 100 on the inner peripheral side. The stator holder 80 includes a flow path 90 through which a cooling medium flows. The flow path 90 is arranged between the stator 60 and the power conversion device 100.Type: ApplicationFiled: January 8, 2020Publication date: March 10, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Takahiro ARAKI, Kinya NAKATSU, Takayoshi NAKAMURA, Akihiro NAMBA, Hiroyuki OOIWA, Hideki MIYAZAKI
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Patent number: 11124075Abstract: A dump truck 100 including: an engine 1; a generator 10 driven by the engine 1; and a pair of driving wheels 3L and 3R arranged to the left and right of a vehicle body frame 7 includes: a traveling electric motor 12L including a plurality of electric motors 12La, 12Lb, and 12Lc that are coupled to the driving wheel 3L and simultaneously drive the driving wheel 3L; and a traveling electric motor 12R including a plurality of electric motors 12Ra, 12Rb, and 12Rc that are coupled to the driving wheel 3R and simultaneously drive the driving wheel 3R. Thereby, drive systems corresponding to loads of dump trucks or the like can be configured using identical components.Type: GrantFiled: June 19, 2018Date of Patent: September 21, 2021Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Satoru Kaneko, Shinji Sugimoto, Takayoshi Nakamura, Tadashi Osaka, Masatsugu Arai, Naoki Fukuda
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Patent number: 10804765Abstract: A highly reliable electromechanical integral motor is provided. In the electromechanical integral motor including an axial gap type motor and a power conversion control device, the power conversion control device is mounted on an end bracket portion of the motor. Additionally, a space is provided between the end bracket portion of the motor and the power conversion control device. Further, the end bracket portion of the motor and the power conversion control device are fixed by a plurality of fixing members, and at least one set of the plurality of fixing members is disposed to be spaced apart from each other.Type: GrantFiled: November 4, 2016Date of Patent: October 13, 2020Assignee: HITACHI, LTD.Inventors: Hisashi Tanie, Yoshitaka Iwaji, Yuji Enomoto, Hirooki Tokoi, Takayoshi Nakamura, Naoki Sakurai, Fusao Houjyou, Kohei Matsushita
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Publication number: 20200156483Abstract: A dump truck 100 including: an engine 1; a generator 10 driven by the engine 1; and a pair of driving wheels 3L and 3R arranged to the left and right of a vehicle body frame 7 includes: a traveling electric motor 12L including a plurality of electric motors 12La, 12Lb, and 12Lc that are coupled to the driving wheel 3L and simultaneously drive the driving wheel 3L; and a traveling electric motor 12R including a plurality of electric motors 12Ra, 12Rb, and 12Rc that are coupled to the driving wheel 3R and simultaneously drive the driving wheel 3R. Thereby, drive systems corresponding to loads of dump trucks or the like can be configured using identical components.Type: ApplicationFiled: June 19, 2018Publication date: May 21, 2020Inventors: Satoru KANEKO, Shinji SUGIMOTO, Takayoshi NAKAMURA, Tadashi OSAKA, Masatsugu ARAI, Naoki FUKUDA
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Patent number: 10428726Abstract: A control apparatus 1 for the engine includes an ECU. When the operating region of the engine is in the EGR execution region B, the ECU performs the EGR control (step 2), and performs first coolant temperature control for controlling an IC coolant temperature TWic such that the temperature of intake air passing through an intercooler exceeds a dew-point temperature (step 14). Further, in a case where the operating region of the engine is in the EGR stop region C, the ECU performs second coolant temperature control for controlling the IC coolant temperature TWic such that the temperature of intake air having passed through the intercooler exceeds the dew-point temperature, assuming that the operating region of the engine has shifted to the EGR execution region B (step 17).Type: GrantFiled: January 8, 2016Date of Patent: October 1, 2019Assignee: HONDA MOTOR CO., LTD.Inventors: Hajime Uto, Yosuke Yamada, Noritaka Kimura, Takayoshi Nakamura, Kosuke Ihara, Yoshinori Matsuo
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Publication number: 20180358863Abstract: An object of the present invention is to provide a highly reliable electromechanical integral motor. In an electromechanical integral motor including an axial gap type motor and a power conversion control device, the power conversion control device is mounted on an end bracket portion of the motor, a space is installed between the end bracket portion of the motor and the power conversion control device, the end bracket portion of the motor and the power conversion control device are fixed by a plurality of fixing members, and at least one set of the plurality of fixing members is disposed to be spaced apart from each other.Type: ApplicationFiled: November 4, 2016Publication date: December 13, 2018Applicant: Hitachi, Ltd.Inventors: Hisashi TANIE, Yoshitaka IWAJI, Yuji ENOMOTO, Hirooki TOKOI, Takayoshi NAKAMURA, Naoki SAKURAI, Fusao HOUJYOU, Kohei MATSUSHITA
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Publication number: 20180334951Abstract: A control apparatus 1 for the engine includes an ECU. When the operating region of the engine is in the EGR execution region B, the ECU performs the EGR control (step 2), and performs first coolant temperature control for controlling an IC coolant temperature TWic such that the temperature of intake air passing through an intercooler exceeds a dew-point temperature (step 14). Further, in a case where the operating region of the engine is in the EGR stop region C, the ECU performs second coolant temperature control for controlling the IC coolant temperature TWic such that the temperature of intake air having passed through the intercooler exceeds the dew-point temperature, assuming that the operating region of the engine has shifted to the EGR execution region B (step 17).Type: ApplicationFiled: January 8, 2016Publication date: November 22, 2018Applicant: HONDA MOTOR CO., LTD.Inventors: Hajime Uto, Yosuke Yamada, Noritaka Kimura, Takayoshi Nakamura, Kosuke Ihara, Yoshinori Matsuo
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Patent number: 9488112Abstract: A variable valve timing control apparatus includes an abnormality determining portion and a valve controller. The abnormality determining portion determines whether there is an abnormality in a system of a VCT phase control in which an oil pressure control valve is controlled in a manner that an actual VCT phase coincides with a target phase. The valve controller controls the oil pressure control valve to drive a lock pin in a locking direction so as to lock the VCT phase when the abnormality determining portion determines that there is an abnormality in the system of the VCT phase control.Type: GrantFiled: August 12, 2011Date of Patent: November 8, 2016Assignee: DENSO CORPORATIONInventors: Takayoshi Nakamura, Haruyuki Urushihata
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Patent number: 9210834Abstract: The object is to provide a power converter which is capable of minimizing an extent to which the power converter components other than the semiconductor module are thermally affected by the heat originating from the semiconductor module. The semiconductor modules constituting a main circuit for power conversion; a capacitor electrically connected to the main circuit; drive circuits that provide the main circuit with a drive signal used in power conversion operation; a control circuit that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal. Within a casing, a cooling chamber including a coolant passage is formed, and a chamber wall of the cooling chamber is formed with a thermally conductive material. At least the semiconductor modules are housed inside the cooling chamber, and at least the capacitor and the control circuit are disposed outside the cooling chamber.Type: GrantFiled: March 15, 2013Date of Patent: December 8, 2015Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Takayoshi Nakamura, Ryuichi Saito, Takashi Suga, Hiroki Funato
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Publication number: 20150313040Abstract: The object is to provide a power converter which is capable of minimizing an extent to which the power converter components other than the semiconductor module are thermally affected by the heat originating from the semiconductor module. A casing houses: semiconductor modules constituting a main circuit for power conversion; a capacitor electrically connected to the main circuit; drive circuits that provide the main circuit with a drive signal used in power conversion operation; a control circuit that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal. Within the casing, a cooling chamber including a coolant passage is formed, and a chamber wall of the cooling chamber is formed with a thermally conductive material. At least the semiconductor modules are housed inside the cooling chamber, and at least the capacitor and the control circuit are disposed outside the cooling chamber.Type: ApplicationFiled: July 6, 2015Publication date: October 29, 2015Inventors: Kinya NAKATSU, Takayoshi NAKAMURA, Ryuichi SAITO, Takashi SUGA, Hiroki FUNATO
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Patent number: 8742786Abstract: A semiconductor device includes a monitor including a first element coupled between a first power supply line and a second power supply line, and a load for increasing a load value between the first element and the first power supply line or the second power supply line, and a determination unit which determines an operating state of the first element based on an output of the monitor.Type: GrantFiled: March 24, 2009Date of Patent: June 3, 2014Assignee: Fujitsu Semiconductor LimitedInventors: Kazufumi Komura, Katsumi Furukawa, Keiichi Fujimura, Takayoshi Nakamura, Tohru Yasuda, Hirohisa Nishiyama, Nobuyoshi Nakaya, Kanta Yamamoto, Shigetaka Asano
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Patent number: 8411441Abstract: A casing houses: semiconductor modules constituting a main circuit for power conversion; a capacitor electrically connected to the main circuit; drive circuits that provide the main circuit with a drive signal used in power conversion operation; a control circuit that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal. Within the casing, a cooling chamber including a coolant passage is formed, and a chamber wall of the cooling chamber is formed with a thermally conductive material. At least the semiconductor modules are housed inside the cooling chamber, and at least the capacitor and the control circuit are disposed outside the cooling chamber.Type: GrantFiled: May 20, 2011Date of Patent: April 2, 2013Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Takayoshi Nakamura, Ryuichi Saito, Takashi Suga, Hiroki Funato
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Patent number: 8264243Abstract: A capacitance sensing section senses a capacitance between first and second electrodes. A temperature sensing section senses fuel temperature. A microcomputer functions as a concentration sensing section and senses a concentration of ethanol contained in fuel based on the capacitance sensed by the capacitance sensing section and the temperature sensed by the temperature sensing section. The microcomputer functions as an abnormality detecting section and performs abnormality determination to determine that an abnormality has occurred in the capacitance sensing section when the capacitance sensed by the capacitance sensing section does not change and the temperature sensed by the temperature sensing section changes. Since a dielectric constant has such a temperature characteristic that the dielectric constant changes with the temperature, the abnormality detecting section can detect occurrence of the abnormality in the capacitance sensing section.Type: GrantFiled: April 16, 2010Date of Patent: September 11, 2012Assignee: Denso CorporationInventors: Jun Tarui, Akikazu Uchida, Toshiki Annoura, Hiroshi Katsurahara, Takayoshi Nakamura
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Publication number: 20120055429Abstract: A variable valve timing control apparatus includes an abnormality determining portion and a valve controller. The abnormality determining portion determines whether there is an abnormality in a system of a VCT phase control in which an oil pressure control valve is controlled in a manner that an actual VCT phase coincides with a target phase. The valve controller controls the oil pressure control valve to drive a lock pin in a locking direction so as to lock the VCT phase when the abnormality determining portion determines that there is an abnormality in the system of the VCT phase control.Type: ApplicationFiled: August 12, 2011Publication date: March 8, 2012Applicant: DENSO CORPORATIONInventors: Takayoshi Nakamura, Haruyuki Urushihata
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Publication number: 20110235270Abstract: The object is to provide a power converter which is capable of minimizing an extent to which the power converter components other than the semiconductor module are thermally affected by the heat originating from the semiconductor module. A casing houses: semiconductor modules constituting a main circuit for power conversion; a capacitor electrically connected to the main circuit; drive circuits that provide the main circuit with a drive signal used in power conversion operation; a control circuit that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal. Within the casing, a cooling chamber including a coolant passage is formed, and a chamber wall of the cooling chamber is formed with a thermally conductive material. At least the semiconductor modules are housed inside the cooling chamber, and at least the capacitor and the control circuit are disposed outside the cooling chamber.Type: ApplicationFiled: May 20, 2011Publication date: September 29, 2011Applicant: Hitachi, Ltd.Inventors: Kinya NAKATSU, Takayoshi Nakamura, Ryuichi Saito, Takashi Suga, Hiroki Funato
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Patent number: 7983044Abstract: An inverter apparatus includes a liquid path in which cooling water flows, and in which the cooling water performs cooling at a cooling part located directly underneath the power circuit part of the inverter apparatus. The liquid path includes a first partial structure part formed between a feed pipe and the cooling part, and having a liquid path cross-sectional profile that is gradually reduced in the short-side direction of the cooling part and that is gradually enlarged in the long-side direction thereof; and a second partial structure part formed between the cooling part and a drain pipe, and having a liquid path cross-sectional profile that is gradually enlarged from the short-side of the cooling part and that is gradually reduced from the long-side thereof.Type: GrantFiled: January 8, 2010Date of Patent: July 19, 2011Assignee: Hitachi, Ltd.Inventors: Takayoshi Nakamura, Akihiro Tamba, Ryuichi Saito, Atsuo Nishihara
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Patent number: 7978468Abstract: The object is to provide a power converter which is capable of minimizing an extent to which the power converter components other than the semiconductor module are thermally affected by the heat originating from the semiconductor module. A casing houses: semiconductor modules 20, 30 constituting a main circuit for power conversion; a capacitor 50 electrically connected to the main circuit; drive circuits 70, 71 that provide main circuit with a drive signal used in power conversion operation; a control circuit 74 that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal. Within the casing, a cooling chamber including a coolant passage 28 is formed, and a chamber wall of the cooling chamber is formed with a thermally conductive material.Type: GrantFiled: March 2, 2010Date of Patent: July 12, 2011Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Takayoshi Nakamura, Ryuichi Saito, Takashi Suga, Hiroki Funato