Patents by Inventor Koji Nakano
Koji Nakano 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: 20170187317Abstract: An electric compressor comprises: a boost converter configured to boost a voltage output from a direct current power supply; an inverter configured to convert the power boosted by the boost converter to an alternating current power; and a motor configured to rotate the electric compressor using the AC power output from the inverter. In the electric compressor, the boost converter and the inverter are provided on the same circuit board, housed in the same inverter case, and cooled by a coolant flowing into the electric compressor. The electric compressor is thereby obtained in which the device size can be prevented from increasing even when the boost converter configured to boost a low voltage from the DC power supply is installed.Type: ApplicationFiled: February 26, 2015Publication date: June 29, 2017Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Koji NAKANO, Hideo NAKAMURA, Hiroyuki KAMITANI
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Publication number: 20160244680Abstract: The invention relates to a method for optimizing layered catalytic processes. This is accomplished by testing various catalysts with a compound found in a feedstock to be tested, to determine the facility of the catalyst in hydrogenating, hydrosulfurizing, or hydrodenitrogenating the molecule, and hence the feedstock. in a preferred embodiment, the Double Bond Equivalence of the feedstock and molecule are determined, and catalysts are pre-selected based upon their known ability to work with materials of this DBE value.Type: ApplicationFiled: May 3, 2016Publication date: August 25, 2016Inventors: Omer Refa KOSEOGLU, Adnan AL-HAJJI, Hendrik MULLER, Masaru USHIO, Koji NAKANO
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Patent number: 9421847Abstract: A fault in a fan motor is detected on the vehicle side with simple wiring. Provided is a vehicle-cooling-fan control system including a fan control unit having a motor control unit that controls a three-phase motor for driving a cooling fan, a vehicle-side ECU that is provided superordinate to the fan control unit and that controls a vehicle, and an air-conditioning-system ECU that controls an air-conditioning apparatus of the vehicle, wherein the fan control unit, the vehicle-side ECU, and the air-conditioning-system ECU are connected so that information can be transferred therebetween via a vehicle network CAN, the fan control unit outputs fault information via a CAN driver in the case where a fault has been detected at a switching device, and the vehicle-side ECU exercises control via the vehicle network CAN to protect the fan control unit and the air-conditioning-system ECU in the case where the importance of the fault information is high.Type: GrantFiled: October 29, 2013Date of Patent: August 23, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Koji Nakano, Hiroyuki Kamitani, Atsushi Suzuki
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Publication number: 20160200171Abstract: The purpose of the present invention is to ensure a heat source, while suppressing a weight increase and a cost increase. A drive apparatus (85) drives a switching element constituted by a transistor that includes a high-heat resistant semiconductor including silicon carbide. The drive apparatus (85) is provided with a voltage adjusting unit (93) that varies a drive voltage to be applied to a conduction control terminal of the switching element in order to put the switching element in an on state, and the voltage adjusting unit (93) applies, as the drive voltage, a voltage in an active region of the transistor to the conduction control terminal.Type: ApplicationFiled: September 3, 2014Publication date: July 14, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Keiji NAGASAKA, Hideo NAKAMURA, Koji NAKANO, Masatoshi MORISHITA, Shunsuke YAKUSHIJI
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Publication number: 20160185184Abstract: A refrigerant heating performance is increased while suppressing an increase in weight or cost. A vehicle air-conditioning device (10) is provided with a heat pump cycle (16) for heating operation in which an electric compressor (50) for compressing refrigerant, a vehicle-cabin-interior condenser (26), a throttle (52), and a vehicle-cabin-exterior heat exchanger (54) are connected in that order via refrigerant piping. An inverter for the electric compressor (50) in which a power element comprising a highly heat-resistant semiconductor device is used is disposed on the electric compressor (50) so that the refrigerant compressed by the electric compressor (50) can be heated by the power element. During heating operation of the heat pump cycle (16), the refrigerant is heated by the power element.Type: ApplicationFiled: September 24, 2014Publication date: June 30, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Masatoshi Morishita, Koji Nakano, Hideo Nakamura, Keiji Nagasaka, Shunsuke Yakushiji
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Patent number: 9351343Abstract: A heater control device includes a current calculating unit (20) which calculates a third value of current based on a first value of current flowing through a first PTC element of a first PTC heater which is in an energized state and a second value of current estimated to flow through a second PTC element of a second PTC heater which is to be newly put into an energized state next, and a switching control unit (21) which maintains a non-energized state of the second PTC element of the second PTC heater until it is determined that the third value of current calculated by the current calculating unit (20) is less than a predetermined maximum allowable value of current and puts the second PTC element of the second PTC heater into an energized state when the third value of current is less than the predetermined maximum allowable value of current.Type: GrantFiled: August 6, 2012Date of Patent: May 24, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Keiji Nagasaka, Hidetaka Sato, Koji Nakano, Shiro Matsubara, Satoshi Kominami
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Patent number: 9347006Abstract: The invention relates to a method for optimizing layered catalytic processes. This is accomplished by testing various catalysts with a compound found in a feedstock to be tested, to determine the facility of the catalyst in hydrogenating, hydrosulfurizing, or hydrodenitrogenating the molecule, and hence the feedstock. In a preferred embodiment, the Double Bond Equivalence of the feedstock and molecule are determined, and catalysts are pre-selected based upon their known ability to work with materials of this DBE value.Type: GrantFiled: January 7, 2014Date of Patent: May 24, 2016Assignees: Saudi Arabian Oil Company, JGC Catalysts and Chemicals Ltd., Japan Cooperation Center, PetroleumInventors: Omer Refa Koseoglu, Adnan Al-Hajji, Hendrik Muller, Masaru Ushio, Koji Nakano
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Publication number: 20160137021Abstract: The purpose of the present invention is to integrate a heating air-conditioning configuration and a cooling system of a vehicle, to enable more efficient heating air conditioning. A vehicle air-conditioning device is provided with: a radiator used for cooling a vehicle-side heat-generating apparatus; a heater core that exchanges heat between a coolant and air to be blown into a vehicle cabin; and coolant passages through which the coolant flows so as to be circulated between the heater core and the radiator. Furthermore, the vehicle air-conditioning device is provided with a water heater which is integrated with a power element for air conditioning formed of a semiconductor element with high heat resistance and which causes the power element and a heat-generating body to heat the coolant flowing to the heater core.Type: ApplicationFiled: August 11, 2014Publication date: May 19, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Masatosi MORISITA, Koji NAKANO, Hideo NAKAMURA, Keiji NAGASAKA, Shunsuke YAKUSHIJI
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Patent number: 9318935Abstract: A control circuit board (25) configuring an inverter (21) serves as a thermally-conductive substrate. One surface of the control circuit board (25) is installed in a heat transferable manner on a heat-dissipating planar part (31) disposed on a housing (2), while heat-producing electrical components (39) are disposed in a heat transferable manner on the other surface of the control circuit board (25). The control circuit board (25) includes a substrate body (41) constituted of an insulator, and heat-conducting through members (42) constituted of a good thermal conductor filled through in a thickness direction of the substrate body (41). One end of each of the heat-conducting through members (42) is disposed in a heat transferable manner on the heat-dissipating planar part (31), and the electrical component (39) is disposed in a heat transferable manner on the other end.Type: GrantFiled: October 20, 2011Date of Patent: April 19, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takashi Nakagami, Koji Nakano, Hiroyuki Kamitani, Takayuki Takashige
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Patent number: 9315828Abstract: An object of the present invention is to provide a carrier composition for nucleic acid delivery, which can efficiently deliver a nucleic acid into cells when a nucleic acid such as siRNA is administered to animal-derived cells or animals, and also has low toxicity and high safety, and a composition for nucleic acid delivery containing the carrier composition and nucleic acid. A carrier for nucleic acid delivery is prepared by using (A) a diacylphosphatidylcholine, (B) at least one member selected from the group consisting of cholesterol and derivatives thereof, and (C) an aliphatic primary amine. Also, a composition for nucleic acid delivery is prepared by mixing the carrier for nucleic acid delivery with a nucleic acid.Type: GrantFiled: March 26, 2008Date of Patent: April 19, 2016Assignees: OTSUKA PHARMACEUTICAL CO., LTD.Inventors: Hirofumi Takeuchi, Yasuyuki Hira, Koji Nakano, Hidekazu Toyobuku
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Patent number: 9302304Abstract: An extrusion press includes a means which can prevent phenomena in which a billet is blown out during an extrusion process as well as prevent billet blowout with a simple and inexpensive constitution. The extrusion press drives a main cylinder device to extrude, by a stem , a billet filled into a container from a die and form a product. A gap measurement means that measures a gap arising at the container seal surface formed by pressing the die side end surface of the container against the container side end surface of the die is provided on an end platen on the outer edge part of the container side end surface of the die. When the gap arising during the extrusion process is measured and the measured value is within a predetermined range of allowable values, a set value for the extrusion rate is lowered and a warning is issued. When the measured value exceeds the predetermined allowable values, the extrusion process is stopped.Type: GrantFiled: August 1, 2012Date of Patent: April 5, 2016Assignee: Ube Machinery Corporation, Ltd.Inventors: Takeharu Yamamoto, Atsushi Yakushigawa, Koji Nakano
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Publication number: 20160020664Abstract: An inverter-integrated electric compressor for which an inverter device is integrally incorporated, with a main circuit board being housed while the four corners thereof are supported by boss parts at locations above high-voltage electrical components and semiconductor switching elements. The multiple high-voltage electrical components are arranged in parallel along one side of the main circuit board at one side of an inverter housing part, with one side of the main circuit board being supported from below by the upper surface of these components. The multiple semiconductor switching elements are arranged in parallel along the other side opposing the one side of the main circuit board, at the other side of the inverter housing part, with the other side of the main circuit board being supported from below by multiple lead terminals extending upwards.Type: ApplicationFiled: February 18, 2014Publication date: January 21, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYS TEMS CO., LTD.Inventors: Makoto HATTORI, Masahiko ASAI, Hiroyuki KAMITANI, Koji NAKANO
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Patent number: 9221036Abstract: The present invention relates to a hydrocracking catalyst for hydrocarbon oil comprising a support containing a framework-substituted zeolite-1 in which zirconium atoms and/or hafnium atoms form a part of a framework of an ultrastable y-type zeolite and a hydrogenative metal component carried thereon and a method for producing the same. The hydrocracking catalyst of the present invention makes it easy to diffuse heavy hydrocarbon oils such as VGO, DAO and the like into mesopores, is improved in a cracking activity and makes it possible to obtain a middle distillate at a high yield as compared with catalysts prepared by using zeolite comprising titanium and/or zirconium carried thereon.Type: GrantFiled: August 2, 2011Date of Patent: December 29, 2015Assignees: Saudi Arabian Oil Company, Japan Cooperation Center, Petroleum, JGC Catalysts and Chemicals Ltd.Inventors: Omer Refa Koseoglu, Adnan Al-Hajji, Ali Mahmood Al-Somali, Ali H. Al-Abdul'Al, Mishaal Al-Thukair, Masaru Ushio, Ryuzo Kuroda, Takashi Kameoka, Koji Nakano, Yuichi Takamori
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Publication number: 20150360540Abstract: A fault in a fan motor is detected on the vehicle side with simple wiring. Provided is a vehicle-cooling-fan control system including a fan control unit having a motor control unit that controls a three-phase motor for driving a cooling fan, a vehicle-side ECU that is provided superordinate to the fan control unit and that controls a vehicle, and an air-conditioning-system ECU that controls an air-conditioning apparatus of the vehicle, wherein the fan control unit, the vehicle-side ECU, and the air-conditioning-system ECU are connected so that information can be transferred therebetween via a vehicle network CAN, the fan control unit outputs fault information via a CAN driver in the case where a fault has been detected at a switching device, and the vehicle-side ECU exercises control via the vehicle network CAN to protect the fan control unit and the air-conditioning-system ECU in the case where the importance of the fault information is high.Type: ApplicationFiled: October 29, 2013Publication date: December 17, 2015Applicant: Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd.Inventors: Koji NAKANO, Hiroyuki KAMITANI, Atsushi SUZUKI
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Publication number: 20150365039Abstract: Included are: a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power, and that supplies the three-phase AC power to a three-phase motor; a first control portion that controls the motor control device; an isolated-type CAN driver that is activated by using power supplied from a low-voltage power supply and that exchanges information with a vehicle ECU that is mounted in the vehicle and that is superordinate to a vehicle cooling-fan motor/inverter system; and an isolation portion that electrically isolates a low-voltage system to which power is supplied from the low-voltage power supply from a high-voltage system to which power is supplied from the high-voltage power supply. If a fault in the switching element is detected, the first control portion outputs fault information notifying that there is a fault in control of the three-phase motor to the vehicle ECU via the isolated-type CAN driver.Type: ApplicationFiled: August 29, 2013Publication date: December 17, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Koji NAKANO, Atsushi SUZUKI, Hiroyuki KAMITANI
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Patent number: 9198231Abstract: A heater control device having at least two PTC heaters having PTC elements includes switching units which are provided so as to correspond to the PTC heaters and which switch an energized state and a non-energized state of the PTC elements by being turned ON and OFF, pattern information which defines state combination patterns of the energized state and the non-energized state of the PTC elements with respect to a required power value for the heater unit, and a ratio controlling unit which when the required power for the heater unit is at an intermediate value of the required power values defined in the pattern information, controls a ratio of the energized state to the non-energized state of the PTC elements based on a ratio of ON time to OFF time for which an average power within a certain period matches the required power.Type: GrantFiled: August 6, 2012Date of Patent: November 24, 2015Assignee: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Keiji Nagasaka, Hidetaka Sato, Koji Nakano, Shiro Matsubara, Satoshi Kominami, Kiyotaka Sumito, Kenji Shimizu
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Publication number: 20150319839Abstract: An electric compressor includes a motor, a scroll compression mechanism, a housing, a circuit unit, a circuit housing housing the circuit unit and integrated with the housing. The electric compressor includes a heat sink provided on a circuit unit side of a partition wall so as to project to be brought into contact with a semiconductor element of a power substrate, facing the partition wall that erects along a vertical direction to separate the inside of the housing from the circuit housing. The heat sink has a lower surface and an upper surface formed into a cylindrical shape so that width of an upper end portion and a lower end portion of the heat sink gradually decreases to reach a tip portion.Type: ApplicationFiled: October 25, 2013Publication date: November 5, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS CO., LTD.Inventors: Gento ICHIKAWA, Takayuki HAGITA, Akinori YOSHIOKA, Hiroyuki KAMITANI, Koji NAKANO, Masayuki ISHIKAWA, Masanori TAKAHASHI, Kenji AOYAGI, Masato ITO
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Publication number: 20150285256Abstract: Provided is an inverter-integrated electrical compressor in which an inverter device has fewer components and a simpler configuration, is more compact, and is lower in cost, and the electrical compressor is made smaller, more lightweight, and lower in cost, with only one substrate being used and the need being eliminated for a large installation surface having a raised partitioning wall on which a semiconductor switching element is installed.Type: ApplicationFiled: October 18, 2013Publication date: October 8, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Takashi Nakagami, Koji Nakano, Keiji Nagasaka, Hiroyuki Kamitani, Makoto Hattori
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Patent number: 9059620Abstract: In an inverter in which noise reducing coils and a smoothing capacitor are provided on a power line to an inverter module to achieve a no-busbar configuration, simplification of the manufacturing process, reduction of the influence on the size of the inverter, enhanced noise reducing function, reduction in cost and so on, the smoothing capacitor is electrically connected, on the inverter module, to the power line in parallel with a power system board, and the noise reducing coils are connected to the power line by directly connecting output lead wires thereof to P-N terminals of the inverter module.Type: GrantFiled: February 4, 2010Date of Patent: June 16, 2015Assignee: MITSUBISHI INDUSTRIES LTD.Inventors: Hidetaka Sato, Koji Nakano, Kazunori Teshima, Takashi Nakagami, Koji Toyama, Takeshi Hirano, Takayuki Watanabe, Naoto Kunieda
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Patent number: 8882479Abstract: A common mode coil can be installed without having to increase the planar area for an inverter accommodating section so that high performance and size reduction and compactness of an inverter device can be achieved.Type: GrantFiled: November 13, 2008Date of Patent: November 11, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Masahiko Asai, Makoto Hattori, Hiroyuki Kamitani, Koji Nakano, Koji Toyama