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).

  • Patent number: 11778697
    Abstract: 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: Grant
    Filed: September 24, 2020
    Date of Patent: October 3, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyuki Murasato, Takahiro Adachi, Toshifumi Kawasaki, Masami Nagano
  • Publication number: 20210105870
    Abstract: 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: Application
    Filed: September 24, 2020
    Publication date: April 8, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyuki MURASATO, Takahiro ADACHI, Toshifumi KAWASAKI, Masami NAGANO
  • Publication number: 20200331471
    Abstract: 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: Application
    Filed: April 14, 2020
    Publication date: October 22, 2020
    Inventors: Takenoshin Takahashi, Masami Nagano
  • Publication number: 20100244754
    Abstract: 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: Application
    Filed: March 1, 2010
    Publication date: September 30, 2010
    Applicant: Hitachi Car Engineering Co., Ltd.
    Inventors: Katsuji Marumoto, Kiyoshi Yoshida, Heikichi Tanno, Junichi Noda, Masami Nagano
  • Patent number: 7509799
    Abstract: 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: Grant
    Filed: May 27, 2004
    Date of Patent: March 31, 2009
    Assignees: Hitachi High-Technologies Corporation, Babcock-Hitachi K.K.
    Inventors: Kiyoshi Amou, Makoto Yamakado, Hiroshi Kusumoto, Masami Nagano, Ikuhisa Hamada, Toshifumi Mukai, Hiroshi Yokota
  • Publication number: 20090082942
    Abstract: 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: Application
    Filed: September 15, 2008
    Publication date: March 26, 2009
    Inventors: Masanobu Ohsaki, Masami Nagano
  • Patent number: 7369925
    Abstract: 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: Grant
    Filed: July 20, 2005
    Date of Patent: May 6, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Michio Morioka, Masami Nagano, Toshimichi Minowa
  • Patent number: 7267100
    Abstract: 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: Grant
    Filed: April 3, 2001
    Date of Patent: September 11, 2007
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Shinji Nakagawa, Minoru Oosuga, Masami Nagano, Mamoru Nemoto, Toshio Hori
  • Patent number: 7246486
    Abstract: 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: Grant
    Filed: April 30, 2003
    Date of Patent: July 24, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Shinji Nakagawa, Toshio Hori, Mamoru Nemoto, Masami Nagano
  • Patent number: 7240661
    Abstract: 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: Grant
    Filed: August 1, 2005
    Date of Patent: July 10, 2007
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Masami Nagano, Tadashi Someno, Masahiro Toyohara
  • Patent number: 7219650
    Abstract: 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: Grant
    Filed: May 30, 2006
    Date of Patent: May 22, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Masami Nagano, Junichi Noda
  • Patent number: 7150144
    Abstract: 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: Grant
    Filed: August 10, 2004
    Date of Patent: December 19, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Shinji Nakagawa, Toshio Hori, Masami Nagano
  • Publication number: 20060266331
    Abstract: 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: Application
    Filed: May 30, 2006
    Publication date: November 30, 2006
    Applicant: HITACHI, LTD.
    Inventors: Masami Nagano, Junichi Noda
  • Patent number: 7093426
    Abstract: 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: Grant
    Filed: July 18, 2003
    Date of Patent: August 22, 2006
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Takanobu Ichihara, Masami Nagano, Kozo Katogi, Hiroaki Saeki
  • Publication number: 20060168942
    Abstract: 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: Application
    Filed: April 30, 2003
    Publication date: August 3, 2006
    Inventors: Shinji Nakagawa, Toshio Hori, Mamoru Nemoto, Masami Nagano
  • Patent number: 7080507
    Abstract: 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: Grant
    Filed: January 16, 2004
    Date of Patent: July 25, 2006
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Kozo Katogi, Masami Nagano, Hiroshi Sekine, Hiroyuki Takamura, Shinji Nakagawa
  • Patent number: 7013869
    Abstract: 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: Grant
    Filed: October 9, 2003
    Date of Patent: March 21, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masami Nagano, Takanobu Ichihara, Hiroaki Saeki
  • Publication number: 20060047382
    Abstract: 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: Application
    Filed: July 20, 2005
    Publication date: March 2, 2006
    Applicant: Hitachi, Ltd.
    Inventors: Michio Morioka, Masami Nagano, Toshimichi Minowa
  • Publication number: 20050268891
    Abstract: 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: Application
    Filed: August 8, 2005
    Publication date: December 8, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Masami Nagano, Takanobu Ichihara
  • Publication number: 20050263137
    Abstract: 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: Application
    Filed: August 1, 2005
    Publication date: December 1, 2005
    Inventors: Masami Nagano, Tadashi Someno, Masahiro Toyohara