Patents by Inventor Tomoyuki Koike

Tomoyuki Koike 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).

  • Publication number: 20180290557
    Abstract: A vehicle power supply control device includes a main battery connected to a power supply circuit, a sub-battery having an internal resistance lower than an internal resistance of the main battery, an electric generator which is connected to the power supply circuit and has a controllable power generation voltage, and a connection controller configured to connect the sub-battery to the power supply circuit after adjusting a voltage on a side of the power supply circuit close to a voltage of the sub-battery by controlling the power generation voltage of the electric generator. The main battery is configured to be disconnectable from the power supply circuit. The connection controller is configured to disconnect the main battery from the power supply circuit first, then control the power generation voltage of the electric generator to adjust the power generation voltage close to the voltage of the sub-battery.
    Type: Application
    Filed: October 2, 2015
    Publication date: October 11, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Akifumi Koishi, Masahiko Tahara, Atsushi Tezuka, Tomoyuki Koike, Munemitsu Watanabe, Terumasa Tsuchiya
  • Patent number: 10091703
    Abstract: A relay apparatus connected to communication lines to perform data relay between the communication lines is provided. The relay apparatus includes a receiver unit that receives rewrite information, which includes information for changing setting of the relay apparatus, from a source apparatus via any of the communication lines, a setting changer unit that changes the setting of the relay apparatus in accordance with the rewrite information, and a change information sending unit that sends the rewrite information to another relay apparatus existing in a local network.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 2, 2018
    Assignee: DENSO CORPORATION
    Inventor: Tomoyuki Koike
  • Publication number: 20180265021
    Abstract: A vehicle power supply control method includes switching, when a constant voltage is required of a power supply circuit in generating electric power by a power generator, the power supply circuit being connected to a primary storage battery and configured to be connected to a secondary storage battery that has a lower internal resistance than that of the primary storage battery, between connection of the secondary storage battery to the power supply circuit and disconnection of the secondary storage battery from the power supply circuit depending on the required constant voltage, current output to the power supply circuit by the power generator, and a state of charge of the secondary storage battery.
    Type: Application
    Filed: September 25, 2015
    Publication date: September 20, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Akifumi Koishi, Masahiko Tahara, Atsushi Tezuka, Tomoyuki Koike, Munemitsu Watanabe, Terumasa Tsuchiya
  • Patent number: 10070389
    Abstract: A relay apparatus for data relay between multiple communication lines includes a sleep relay unit, a start-up determination unit and a communication block unit. The sleep relay unit relays a sleep instruction that instructs a designated apparatus to transition to a sleep mode. The start-up determination unit determines whether or not a start-up apparatus, which is an apparatus other than the designated apparatus and is in a normal mode, exists in a designated communication line, which is a communication line connected to the designated apparatus. Communication that uses the designated communication line is blocked by the communication block unit when it is determined that the start-up apparatus does not exist in the designated communication line.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: September 4, 2018
    Assignee: DENSO CORPORATION
    Inventor: Tomoyuki Koike
  • Publication number: 20180245525
    Abstract: A vehicle traveling control method includes detecting a remaining fuel amount in a fuel tank including a fuel chamber in which a suction port of a fuel pump is disposed for sucking fuel to be supplied to an engine, the fuel tank being configured to generate negative pressure for sucking fuel to the fuel chamber by ejecting a part of fuel sucked by the fuel pump into the fuel chamber via a fuel line, permitting, when a predetermined condition is satisfied, inertial traveling during which a vehicle travels, with the engine kept stopped, operating, when the detected remaining fuel amount is less than a first threshold, the fuel pump despite the engine stopped owing to the inertial traveling, and prohibiting stop of the engine when the detected remaining fuel amount is less than a second threshold smaller than the first threshold.
    Type: Application
    Filed: August 20, 2015
    Publication date: August 30, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tomoyuki Koike, Munemitsu Watanabe, Akifumi Koishi, Terumasa Tsuchiya, Masahiko Tahara, Atsushi Tezuka
  • Publication number: 20180147915
    Abstract: A vehicle air-conditioning system that performs air heating by utilizing heat of a coolant that cools an engine includes a circulation flow passage connecting a coolant inflow portion and a coolant discharge portion of the engine, a heating heater core disposed in the circulation flow passage, a radiator disposed in the circulation flow passage, a radiator fan configured to supply an air to the radiator, and a controller configured to control the radiator fan. When a water pump configured to pressure-feed the coolant is stopped during automatic stop of the engine, the controller drives to rotate the radiator fan during automatic stop of the engine so as to let convection take place in the coolant in the radiator and supply the coolant to the heating heater core.
    Type: Application
    Filed: May 28, 2015
    Publication date: May 31, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Atsushi Tezuka, Masahiko Tahara, Tomoyuki Koike, Munemitsu Watanabe, Terumasa Tsuchiya, Akifumi Koishi
  • Publication number: 20180134240
    Abstract: A power supply system control device for controlling a power supply system including an electric generator, a first electricity storage configured to be charged with and to discharge electric power generated by the electric generator, a second electricity storage configured to be charged with and to discharge the generated electric power, two paths connecting between the first electricity storage and the second electricity storage, a switching unit including a first switch configured to switch between a conductive state and a non-conductive state of one of the paths, and a second switch configured to switch between a conductive state and a non-conductive state of the other of the paths, and an electric load of a vehicle that is connected to the first electricity storage side of the switching unit.
    Type: Application
    Filed: May 22, 2015
    Publication date: May 17, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masahiko Tahara, Terumasa Tsuchiya, Atsushi Tezuka, Tomoyuki Koike, Munemitsu Watanabe, Akifumi Koishi
  • Publication number: 20180126856
    Abstract: A power supply system in a vehicle having an idling stop function for executing an automatic stop and an automatic restart on an engine has a power generator, a first storage unit that can be charged with and can discharge generated power generated by the power generator, a second storage unit that can be charged with and can discharge the generated power, two paths connecting the first storage unit and the second storage unit, a switching unit including a first switch for switching one path of the two paths between a conductive condition and a non-conductive condition, and a second switch for switching another path of the two paths between a conductive condition and a non-conductive condition, and an engine restarter connected to either the first storage unit side or the second storage unit side of the switching unit in order to start the engine during the automatic restart.
    Type: Application
    Filed: May 12, 2015
    Publication date: May 10, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masahiko Tahara, Atsushi Tezuka, Tomoyuki Koike, Munemitsu Watanabe, Akifumi Koishi, Terumasa Tsuchiya
  • Publication number: 20180119800
    Abstract: An oil pressure control device has a mechanical oil pump (O/P) driven by a motor/generator (MG), an electric oil pump (M/O/P) driven by a sub motor (S/M) and a line pressure regulating valve (104). In a case where a state is changed from a state in which the motor/generator (MG) is stopped and the electric oil pump (M/O/P) is driven to a state in which the motor/generator (MG) is started and the electric oil pump (M/O/P) is stopped, when a total flow amount of a working fluid discharge flow amount of the mechanical oil pump (O/P) and a working fluid discharge flow amount of the electric oil pump (M/O/P) is equal to or greater than a pressure regulation limit flow amount of the pressure regulating valve (104), the working fluid discharge flow amount of the electric oil pump (M/O/P) is decreased.
    Type: Application
    Filed: March 9, 2016
    Publication date: May 3, 2018
    Applicant: JATCO Ltd
    Inventors: Yutaka SHIMIZU, Shusaku KATAKURA, Yusuke OTA, Tomoyuki KOIKE, Yukiyoshi INUTA, Youko YOSHIOKA
  • Publication number: 20180106363
    Abstract: A hydraulic control device includes: a mechanical oil pump (O/P) that is driven by a motor/generator (M/G) and that generates a first hydraulic pressure (P1); an electric oil pump (M/O/P) that is driven by a sub-motor (S/M) and that generates a second hydraulic pressure (P2); and a controller (10). When a demanded drive force from a driver is generated while in a low-vehicle-speed region which is lower than a first vehicle speed (V1) at which the output of the mechanical oil pump (O/P) becomes unstable, the controller (10) controls the electric oil pump (M/O/P) such that the second hydraulic pressure (P2) becomes larger than a compensative hydraulic pressure (P?) found by subtracting the first hydraulic pressure (P1) from a necessary hydraulic pressure (Pne) determined in accordance with the demanded drive force.
    Type: Application
    Filed: March 9, 2016
    Publication date: April 19, 2018
    Applicant: JATCO Ltd
    Inventors: Shusaku KATAKURA, Yutaka SHIMIZU, Youko YOSHIOKA, Yukiyoshi INUTA, Tomoyuki KOIKE
  • Publication number: 20180105162
    Abstract: A vehicle is provided with a mechanical oil pump (O/P) that is driven by a motor/generator (MG), an electric oil pump (M/O/P) that is driven by a sub-motor (S/M) and a second clutch (CL2) that transmits the drive force of the motor/generator (MG) to left and right drive wheels (LT, RT). When an accelerator pedal is depressed while a brake pedal is still depressed, an integrated controller (10) drives the electric oil pump (M/O/P) before the brake pedal is released, and oil pressure supplied to the second clutch (CL2) is increased.
    Type: Application
    Filed: March 9, 2016
    Publication date: April 19, 2018
    Applicant: JATCO Ltd
    Inventors: Shusaku KATAKURA, Yutaka SHIMIZU, Tomoyuki KOIKE, Yukiyoshi INUTA, Youko YOSHIOKA
  • Publication number: 20180100578
    Abstract: An oil pressure control device for a vehicle is configured such that, when switching from an oil pressure supply by means of a mechanical oil pump driven by a motor/generator to an oil pressure supply by means of an electric oil pump driven by a sub-motor, a supply ratio of oil supplied from the mechanical oil pump and a supply ratio of oil supplied from the electric oil pump, are adjusted based on an oil pressure difference between a first oil pressure and a second oil pressure, via first and second flapper valves. When the first oil pressure becomes less than or equal to a pump drive threshold, an increase in the second oil pressure is initiated, and the first oil pressure and the second oil pressure are made to match at a predetermined equilibrium oil pressure higher than a required line pressure.
    Type: Application
    Filed: March 9, 2016
    Publication date: April 12, 2018
    Applicant: JATCO Ltd
    Inventors: Yutaka SHIMIZU, Shusaku KATAKURA, Yusuke OTA, Youko YOSHIOKA, Yukiyoshi INUTA, Tomoyuki KOIKE
  • Patent number: 9838335
    Abstract: Switching hubs includes switches in a hierarchy type communication network used in a vehicle, the switches respectively include a first section storing a received Identification (ID) number received by one port in a memory as an identifier of the respective switches, and a second section sending a port-specific identifier from each of the other ports in the respective switches by generating the port-specific identifier as a combination of a port number and the received ID number according to a preset rule, thereby enabling a dynamic assignment of an identifier to each of the switches in the communication network.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: December 5, 2017
    Assignee: DENSO CORPORATION
    Inventor: Tomoyuki Koike
  • Publication number: 20170307118
    Abstract: A structure of a resin-made pipe joint includes a sleeve which is press-insertable from one axial side into one longitudinal end portion of a flexible tube to flare the one longitudinal end portion to hold the flared state, a joint body which is couplable to the sleeve, and a union nut which is fastenable to the joint body to hold a state where the sleeve press-inserted into the one longitudinal end portion is coupled to the joint body. The sleeve has a taper-like first outer circumferential surface, a second outer circumferential surface having an outer diameter that is smaller than a maximum outer diameter of the first outer circumferential surface, and an annular step portion which is an annular step portion that is disposed between the first outer circumferential surface and the second outer circumferential surface and comprises an edge portion on a side of the first outer circumferential surface.
    Type: Application
    Filed: January 20, 2016
    Publication date: October 26, 2017
    Applicant: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto FUJII, Kazukiyo TESHIMA, Tatsuya FUJII, Toshihide IIDA, Tomoyuki KOIKE, Shintaro MAKIHATA
  • Publication number: 20170299097
    Abstract: A structure of a resin-made pipe joint includes a joint body having a cylindrical shape, a sleeve having a cylindrical press-inserting portion which is press-insertable into the joint body and a cylindrical coupling portion which is press-insertable into a tube, and a fastening member for fixing the tube which is in a state where the coupling portion is press-inserted, to the joint body through the sleeve. The sleeve contains a sealing surface in an outer circumferential surface of the press-inserting portion, the sealing surface being closely contactable with an inner circumferential surface of the joint body, and comprises a non-contacting surface between the press-inserting portion and the coupling portion, the non-contacting surface forming a space with respect to the inner circumferential surface of the joint body, when the sealing surface is closely contacted with the inner circumferential surface of the joint body.
    Type: Application
    Filed: January 20, 2016
    Publication date: October 19, 2017
    Applicant: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto FUJII, Masaki MIYAMOTO, Tatsuya FUJII, Toshihide IIDA, Tomoyuki KOIKE, Shintaro MAKIHATA
  • Publication number: 20170159854
    Abstract: A resin-made pipe joint enhancing sealing property between a joint body and a sleeve. The joint body and the sleeve are produced by using a fluorine resin. A sealing portion which seals between the inner circumferential surface of an inserting portion of the sleeve and the outer circumferential surface of the inner cylinder portion is formed by press-inserting the inserting portion into a groove portion of the joint body. When, with respect to the inserting and groove portions, an insertion rate of the inserting portion to the groove portion is indicated by X, and a multiplying factor of the radial width of the inserting portion to the radial width of the groove portion is indicated by Y, the resin-made pipe joint has the insertion rate and multiplying factor which are within a range defined by following Expressions (1) and (2): Y=?0.218X+1.218??(1) and Y=?0.67X+1.67.
    Type: Application
    Filed: September 17, 2015
    Publication date: June 8, 2017
    Applicant: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto FUJII, Masaki MIYAMOTO, Toshihide IIDA, Tomoyuki KOIKE, Atsushi NAKANO, Daisuke URATA
  • Publication number: 20170146161
    Abstract: A resin-made pipe joint with enhanced sealing property between a joint body and sleeve. A sealing portion which seals between an inner circumferential surface of an inserting portion of a sleeve and an outer circumferential surface of an inner cylinder portion is formed by press-inserting an inserting portion into a groove portion of the joint body. When the inserting portion is press-inserted into the groove portion, a space is formed between a body cylinder portion located opposite to an opening portion of the groove portion in the axial direction, and the projection end of the inserting portion. After completing press insertion of the inserting portion into the groove portion, in a section including axis of the inner cylinder portion, a region in the outer circumferential surface of the inner cylinder portion facing the space forms an angle of 5° to 15° to the axis of the inner cylinder portion.
    Type: Application
    Filed: September 17, 2015
    Publication date: May 25, 2017
    Applicant: Nippon Pillar Packing Co., Ltd.
    Inventors: Makoto FUJII, Masaki MIYAMOTO, Toshihide IIDA, Tomoyuki KOIKE, Atsushi NAKANO, Daisuke URATA
  • Publication number: 20160301545
    Abstract: Switching hubs includes switches in a hierarchy type communication network used in a vehicle, the switches respectively include a first section storing a received Identification (ID) number received by one port in a memory as an identifier of the respective switches, and a second section sending a port-specific identifier from each of the other ports in the respective switches by generating the port-specific identifier as a combination of a port number and the received ID number according to a preset rule, thereby enabling a dynamic assignment of an identifier to each of the switches in the communication network.
    Type: Application
    Filed: March 21, 2016
    Publication date: October 13, 2016
    Inventor: Tomoyuki KOIKE
  • Publication number: 20160277998
    Abstract: A relay apparatus connected to communication lines to perform data relay between the communication lines is provided. The relay apparatus includes a receiver unit that receives rewrite information, which includes information for changing setting of the relay apparatus, from a source apparatus via any of the communication lines, a setting changer unit that changes the setting of the relay apparatus in accordance with the rewrite information, and a change information sending unit that sends the rewrite information to another relay apparatus existing in a local network.
    Type: Application
    Filed: March 16, 2016
    Publication date: September 22, 2016
    Inventor: Tomoyuki KOIKE
  • Publication number: 20160278017
    Abstract: A relay apparatus for data relay between multiple communication lines includes a sleep relay unit, a start-up determination unit and a communication block unit. The sleep relay unit relays a sleep instruction that instructs a designated apparatus to transition to a sleep mode. The start-up determination unit determines whether or not a start-up apparatus, which is an apparatus other than the designated apparatus and is in a normal mode, exists in a designated communication line, which is a communication line connected to the designated apparatus. Communication that uses the designated communication line is blocked by the communication block unit when it is determined that the start-up apparatus does not exist in the designated communication line.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 22, 2016
    Inventor: Tomoyuki KOIKE