Patents by Inventor Masami Nagano
Masami Nagano 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: 11778697Abstract: A window glass apparatus includes a heater for heating a part of a windshield which is a particular part of a window glass of a host vehicle, and a control ECU configured to control an amount of the electric power supplied to the heater. The control ECU detects a preceding vehicle and controls the amount of the electric power supplied to the heater in such a manner that the amount of the electric power supplied to the heater is reduced as compared with a case where the preceding vehicle is not detected, using information on the detected preceding vehicle.Type: GrantFiled: September 24, 2020Date of Patent: October 3, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideyuki Murasato, Takahiro Adachi, Toshifumi Kawasaki, Masami Nagano
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Publication number: 20210105870Abstract: A window glass apparatus includes a heater for heating a part of a windshield which is a particular part of a window glass of a host vehicle, and a control ECU configured to control an amount of the electric power supplied to the heater. The control ECU detects a preceding vehicle and controls the amount of the electric power supplied to the heater in such a manner that the amount of the electric power supplied to the heater is reduced as compared with a case where the preceding vehicle is not detected, using information on the detected preceding vehicle.Type: ApplicationFiled: September 24, 2020Publication date: April 8, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideyuki MURASATO, Takahiro ADACHI, Toshifumi KAWASAKI, Masami NAGANO
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Publication number: 20200331471Abstract: A driving assistance apparatus of a vehicle includes a first sensor, a second sensor and a control unit. The first sensor obtains a position of an object with respect to the first sensor. The second sensor obtains a position of an object with respect to the vehicle. The control unit assists driving of the vehicle utilizing first vehicle relative position for an object detected by the first sensor which indicates a position of that object with respect to the vehicle. The control unit obtains the first vehicle relative position based on a correction angle formed between a reference axis of the vehicle and a reference axis of the first sensor. The correction angle is obtained based on a position of a target with respect to the first sensor obtained by the first sensor, and a position of the target with respect to the vehicle obtained by the second sensor.Type: ApplicationFiled: April 14, 2020Publication date: October 22, 2020Inventors: Takenoshin Takahashi, Masami Nagano
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Publication number: 20100244754Abstract: A sensorless-brushless motor control device comprises an inverter, an inverter drive circuit that drives the inverter and a current control part that controls the inverter drive circuit according to a current command from a superior control part and includes a first order lag compensating part. The device is characterized by further comprising a control mode changeover judging part that judges changeover of a control gain of the current control part after startup of the sensorless-brushless motor in response to a motor revolution sensing signal from the inverter drive circuit and a control mode changeover part that changes over the control gain of the current control part in response to an output of the control mode changeover judging part.Type: ApplicationFiled: March 1, 2010Publication date: September 30, 2010Applicant: Hitachi Car Engineering Co., Ltd.Inventors: Katsuji Marumoto, Kiyoshi Yoshida, Heikichi Tanno, Junichi Noda, Masami Nagano
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Patent number: 7509799Abstract: To provide an engine exhaust gas treatment system that can efficiently reduce and remove NOx using easy-to-handle urea as the reducing agent, regardless of the engine operating conditions. An exhaust gas denitration system in which an exhaust gas is introduced into the denitration catalyst reactor 5 provided in the exhaust gas flue 3, where NOx is reduced and removed in the presence of the denitrati on catalyst, wherein a diversion means provided in the exhaust gas flue 3 introduces part or all of the exhaust gas into a urea solution injection evaporator having a heating means by the heater 30, and the heat from the exhaust gas and the heat from the heater serve to generate ammonia that is then circled and mixed with the exhaust gas and introduced into the denitration catalyst reactor 4.Type: GrantFiled: May 27, 2004Date of Patent: March 31, 2009Assignees: Hitachi High-Technologies Corporation, Babcock-Hitachi K.K.Inventors: Kiyoshi Amou, Makoto Yamakado, Hiroshi Kusumoto, Masami Nagano, Ikuhisa Hamada, Toshifumi Mukai, Hiroshi Yokota
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Publication number: 20090082942Abstract: A first fuel injection valve is arranged in an intake port of an internal combustion engine and also a second fuel injection valve capable of exhibiting a spray property having a vaporization characteristic higher than that of the first fuel injection valve is arranged on the intake air flow downstream side of the first fuel injection valve, the fuel injection is performed by the second fuel injection valve at a cranking time, and after a predetermined time has elapsed from completion of the cranking, the share for the first fuel injection is gradually increased to thereby change-over the fuel injection to that by the first fuel injection valve. Further, at a time of the engine acceleration, a main fuel injection amount is injected by the first fuel injection valve and a fuel injection amount equivalent to an increasing amount for acceleration is injected by the second fuel injection, thereby eventually improving the fuel consumption as well as the exhausting performance.Type: ApplicationFiled: September 15, 2008Publication date: March 26, 2009Inventors: Masanobu Ohsaki, Masami Nagano
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Patent number: 7369925Abstract: In order to estimate failure times of vehicles, the invention provides a vehicle failure diagnosis apparatus which receives records of learned values actually used in the past in vehicle control systems of vehicles as diagnosis targets from in-vehicle terminals via a communication part, estimates failure time of the vehicle control systems by comparing the received records of the learned values and the failure patterns readout from a failure pattern DB, and outputs the estimated failure time to the in-vehicle terminals.Type: GrantFiled: July 20, 2005Date of Patent: May 6, 2008Assignee: Hitachi, Ltd.Inventors: Michio Morioka, Masami Nagano, Toshimichi Minowa
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Patent number: 7267100Abstract: An internal combustion engine controller, is used with a fuel-based torque-on-demand control type, multi-cylinder, direct-injection internal combustion engine, to provide an air flow rate control that excels in response and convergence. The internal combustion engine controller includes a section for computing a target throttle opening from operating conditions, which in turn includes a first computing section for determining a target throttle opening by feedback control in accordance with operating conditions including an intake air flow rate; a second computing section for determining a target throttle opening by feed-forward control in accordance with operating conditions; and a third computing means for determining a target throttle opening based on the target throttle opening value determined by the first computing means and the second computing means.Type: GrantFiled: April 3, 2001Date of Patent: September 11, 2007Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Shinji Nakagawa, Minoru Oosuga, Masami Nagano, Mamoru Nemoto, Toshio Hori
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Patent number: 7246486Abstract: An internal combustion engine control device for, in a lean-burn internal combustion engine provided with a three-way catalyst and a lean NOx catalyst in an exhaust system, optimizing an air/fuel ratio in a rich mode from the viewpoints of both better fuel economy and exhaust emission control when NOx having been stored in a lean NOx catalyst during a lean operation is desorbed and cleaned by switching to a rich operation. An internal combustion engine control device for controlling an air/fuel ratio during the rich operation to be changed between a period of desorbing O2 stored in the three-way catalyst and a period of desorbing and cleaning NOx stored in the lean NOx catalyst.Type: GrantFiled: April 30, 2003Date of Patent: July 24, 2007Assignee: Hitachi, Ltd.Inventors: Shinji Nakagawa, Toshio Hori, Mamoru Nemoto, Masami Nagano
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Patent number: 7240661Abstract: The present invention provides a fuel injection device comprising an intake pipe having interior wall surfaces for providing air from an upstream side to a downstream side and a fuel injection port disposed in the intake pipe between the surfaces for providing fuel into the intake pipe and an air guide member disposed in the intake pipe in a plane substantially parallel to the surfaces for guiding air separately towards an air flow layer passage and a main air passage wherein the air guided towards the air flow layer passage has a speed at least greater than the air guided towards the main air passage.Type: GrantFiled: August 1, 2005Date of Patent: July 10, 2007Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Masami Nagano, Tadashi Someno, Masahiro Toyohara
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Patent number: 7219650Abstract: The invention improves a combustion at a starting time by refining a fuel at a time of starting the engine so as to minimize an amount of the fuel attached to a wall surface and appropriately form an air-fuel mixture. When the engine starts, a control apparatus executes a control of increasing a fuel pressure supplied to a fuel injector in comparison with a normal operating time just after the engine start, and a divisional injection control of divisionally injecting the fuel injection for one cycle of the engine by the fuel injector at a plurality of times.Type: GrantFiled: May 30, 2006Date of Patent: May 22, 2007Assignee: Hitachi, Ltd.Inventors: Masami Nagano, Junichi Noda
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Patent number: 7150144Abstract: A control apparatus is capable of separately detecting an unexpected fluctuation in the amount of NOx discharged from an engine (combustion chamber), separately from deterioration of lean NOx catalyst performance, thereby avoiding incorrect diagnosis of deterioration of the lean NOx catalyst, and ensuring the optimum control of the catalyst.Type: GrantFiled: August 10, 2004Date of Patent: December 19, 2006Assignee: Hitachi, Ltd.Inventors: Shinji Nakagawa, Toshio Hori, Masami Nagano
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Publication number: 20060266331Abstract: The invention improves a combustion at a starting time by refining a fuel at a time of starting the engine so as to minimize an amount of the fuel attached to a wall surface and appropriately form an air-fuel mixture. When the engine starts, a control apparatus executes a control of increasing a fuel pressure supplied to a fuel injector in comparison with a normal operating time just after the engine start, and a divisional injection control of divisionally injecting the fuel injection for one cycle of the engine by the fuel injector at a plurality of times.Type: ApplicationFiled: May 30, 2006Publication date: November 30, 2006Applicant: HITACHI, LTD.Inventors: Masami Nagano, Junichi Noda
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Patent number: 7093426Abstract: To improve startability and reduce the amount of HC emission at start-up with the aid of a construction where vaporized fuel is supplied to the bypass passage that bypasses the main passage. The main air control valve 16 is installed near the intake port 10 of the main air passage 3, and the main air control valve is closed or throttled at the time of start-up or additional injection from the port injection valve 5 is given in the beginning of start-up cranking. With a apparatus equipped with the main air control valve, vaporization of the fuel injected from the auxiliary injection valve 6 is facilitated in the beginning of cranking and also intake delay of the vaporized fuel is reduced, and hence startability can improve and the amount of HC emission at the time of start-up can decrease.Type: GrantFiled: July 18, 2003Date of Patent: August 22, 2006Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Takanobu Ichihara, Masami Nagano, Kozo Katogi, Hiroaki Saeki
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Publication number: 20060168942Abstract: An internal combustion engine control device for, in a lean-burn internal combustion engine provided with a three-way catalyst and a lean NOx catalyst in an exhaust system, optimizing an air/fuel ratio in a rich mode from the viewpoints of both better fuel economy and exhaust emission control when NOx having been stored in a lean NOx catalyst during a lean operation is desorbed and cleaned by switching to a rich operation. An internal combustion engine control device for controlling an air/fuel ratio during the rich operation to be changed between a period of desorbing O2 stored in the three-way catalyst and a period of desorbing and cleaning NOx stored in the lean NOx catalyst.Type: ApplicationFiled: April 30, 2003Publication date: August 3, 2006Inventors: Shinji Nakagawa, Toshio Hori, Mamoru Nemoto, Masami Nagano
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Patent number: 7080507Abstract: In order to improve the decrease of the catalytic action and the deterioration of the exhaust purification performance, a catalyst installed in the exhaust pipe of an engine and a secondary air pump for supplying secondary air into the exhaust pipe are provided, and the secondary air pump is operated even after the engine has stopped.Type: GrantFiled: January 16, 2004Date of Patent: July 25, 2006Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Kozo Katogi, Masami Nagano, Hiroshi Sekine, Hiroyuki Takamura, Shinji Nakagawa
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Patent number: 7013869Abstract: The present invention provides an electronically-controlled fuel injector, for an internal combustion engine, comprising a downstream fuel injection valve located near an air intake port of each cylinder or inside a cylinder, an air intake passage which bypasses the throttle valve located upstream of a downstream fuel injection valve, and a fuel vaporizing section including an upstream fuel injection valve, and a heater which vaporizes fuel injected from the upstream fuel injection valve; and further having an air intake port located upstream of the throttle valve, air flow control section for controlling an amount of air, said fuel vaporizing section, vaporized-fuel branch section for supplying vaporized fuel to each cylinder, and a vaporized-fuel distribution passage which extends from the vaporized-fuel branch section to an opening located in each air intake pipe located downstream of the throttle valve.Type: GrantFiled: October 9, 2003Date of Patent: March 21, 2006Assignee: Hitachi, Ltd.Inventors: Masami Nagano, Takanobu Ichihara, Hiroaki Saeki
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Publication number: 20060047382Abstract: In order to estimate failure times of vehicles, the invention provides a vehicle failure diagnosis apparatus which receives records of learned values actually used in the past in vehicle control systems of vehicles as diagnosis targets from in-vehicle terminals via a communication part, estimates failure time of the vehicle control systems by comparing the received records of the learned values and the failure patterns readout from a failure pattern DB, and outputs the estimated failure time to the in-vehicle terminals.Type: ApplicationFiled: July 20, 2005Publication date: March 2, 2006Applicant: Hitachi, Ltd.Inventors: Michio Morioka, Masami Nagano, Toshimichi Minowa
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Publication number: 20050268891Abstract: A fuel supply system for use in an internal combustion engine, comprising: an intake passage; a downstream fuel injection valve near the port of each cylinder of the engine and downstream of the intake passage; and a controller, wherein the intake passage includes a fuel injection/evaporation device which has an upstream fuel injection valve; a heater for evaporating injected fuel; and an air passage for supplying the injected fuel with air. The controller is adapted to control the amount of fuel injected from the downstream fuel injection valve and the upstream fuel injection valve, thereby controlling the fuel-air ratio of the injected fuel.Type: ApplicationFiled: August 8, 2005Publication date: December 8, 2005Applicant: Hitachi, Ltd.Inventors: Masami Nagano, Takanobu Ichihara
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Publication number: 20050263137Abstract: The present invention provides a fuel injection device comprising an intake pipe having interior wall surfaces for providing air from an upstream side to a downstream side and a fuel injection port disposed in the intake pipe between the surfaces for providing fuel into the intake pipe and an air guide member disposed in the intake pipe in a plane substantially parallel to the surfaces for guiding air separately towards an air flow layer passage and a main air passage wherein the air guided towards the air flow layer passage has a speed at least greater than the air guided towards the main air passage.Type: ApplicationFiled: August 1, 2005Publication date: December 1, 2005Inventors: Masami Nagano, Tadashi Someno, Masahiro Toyohara