Patents by Inventor Toru Hamada

Toru Hamada 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: 11929612
    Abstract: A first switching unit switches a first power grid from an isolated operation to a grid-connected operation. In switching the first power grid from the isolated operation to the grid-connected operation, the first switching unit determines a master and a slave among a plurality of power adjustment resources and allows the first power grid to be connected to the second power grid after master-slave control by means of the master and the slave such that electric power of the first power grid is in synchronization with electric power of the second power grid. The first switching unit preferentially selects as the master, a power adjustment resource close to a point of connection between the first power grid and the second power grid from among the plurality of power adjustment resources.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: March 12, 2024
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shigetaka Hamada, Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano
  • Patent number: 11912154
    Abstract: A power management system includes a plurality of power adjustment resources electrically connected to a microgrid. The plurality of power adjustment resources include a plurality of EVSEs, each of EVSEs including a parking space. When any one of a plurality of power feeding vehicles is parked in the parking space, an EVSE enables power feeding from a vehicle parked in the parking space to the microgrid. A CEMS server manages the parking space. When a balance of power supply and demand in the microgrid is in an overdemand state, the CEMS server allocates the parking space to a power feeding vehicle that responds to a request for power feeding to the microgrid, of the plurality of power feeding vehicles.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: February 27, 2024
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shigetaka Hamada, Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano
  • Patent number: 5582076
    Abstract: A flywheel assembly includes a first flywheel having an annular wall on its outer peripheral portion, a seal plate fixed to the outer peripheral portion to form an annular space between the first flywheel and the seal plate, a driven plate arranged to freely rotate relative to the first flywheel within the annular space, an elastic coupling mechanism arranged inside the annular space which elastically connects the first flywheel and the driven plate circumferentially, and a viscous dampening mechanism. The viscous dampening mechanism is formed adjacent to the outer peripheral portion inside the annular space and has a fluid filled chamber. The driven plate includes a plurality of protrusion, each one of the protrusions extending into one of the fluid filled chambers. The viscous portion has a choke formed inside the fluid filled chamber that passes fluid while the first flywheel and driven plate rotate relative to each other.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: December 10, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Toru Hamada, Kozo Yamamoto
  • Patent number: 5205388
    Abstract: A clutch cover assembly having an annular bearing plate 27 located between a pressure plate 13 and a diaphragm spring 14 in coaxial relation to them. The bearing plate 27 integrally has a releasing fulcrum point 30 which is disposed in a clearance S between the pressure plate 13 and a back face of a projection 25. The releasing fulcrum point 30 is distorted in axial direction to elastically supports an outer peripheral part of the diaphragm spring 14. The releasing fulcrum point 30 and the loading fulcrum point 26 are arranged on the same circumference.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: April 27, 1993
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Yasuyuki Hashimoto, Toru Hamada, Hiroshi Takeuchi
  • Patent number: 5043984
    Abstract: An inspection device is provided an inspection parameter generator generating predetermined parameter data. The parameter data is transmitted to a control unit subjecting inspection. The inspection device receives input signal from the control unit, which input signal corresponds to the parameter data input to the control unit. Both of the control unit and inspection device processes the corresponding data. The control unit feeds resultant output to the inspection device. The inspection device compares its own resultant data and the resultant output of the control unit to make judgment whether the control unit operates in normal condition or not.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: August 27, 1991
    Assignee: Japan Electronic Control Systems Co., Ltd.
    Inventors: Naoki Tomisawa, Yukio Hoshino, Masashi Fukushima, Toru Hamada
  • Patent number: 4911132
    Abstract: A fuel injection control system is directed a sequential injection type fuel injection internal combustion engine for injecting fuel to each engine cylinder at different timings. Acceleration enrichment asynchronous fuel injection is initiated in response to an acceleration demand. Acceleration enrichment is further performed for subsequent injection cycles to compensate for engine load indicative sensor signals which differ from actual engine load due to errors in an air flow meter.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: March 27, 1990
    Assignee: Japan Electronic Control Systems Company, Limited
    Inventors: Shinpei Nakaniwa, Seiichi Otani, Toru Hamada, Masanobu Osaki, Yukio Hoshino, Naoki Tomisawa
  • Patent number: 4889100
    Abstract: A fuel injection control system is directed for a sequential injection type fuel injection internal combustion engine for injecting fuel for each engine cylinder at different timing. Acceleration enrichment asynchroneous fuel injection is initiated in response to an acceleration demand. Acceleration enrichment is further performed for subsequent given injection cycles for compensation of smaller engine load indicative sensor signal than actual engine load due to error in an air flow meter.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: December 26, 1989
    Assignee: Japan Electronic Control Systems Company, Limited
    Inventors: Shinpei Nakaniwa, Seiichi Otani, Toru Hamada, Masanobu Osaki, Yukio Hoshino, Naoki Tomisawa
  • Patent number: 4791829
    Abstract: A flywheel with a dynamic damper which has an elastic member having a rectangular cross sectional shape and made of an elastic material which can dampen all the vibrations transmitted from a crank shaft to the flywheel. The dynamic damper is fixed to an engine side face of the flywheel rigidly fastened to the engine crank shaft, and a weight having a mass corresponding to the mass of the flywheel is floatingly supported through the elastic member so as not to contact with the flywheel.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: December 20, 1988
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hirotaka Fukushima, Toru Hamada
  • Patent number: 4787877
    Abstract: A structure for radially positioning a friction member in a damper disc comprises an output hub including a radial flange; a pair of side plates rotatably disposed at opposite sides of the flange; a torsion spring mechanism operable to circumferentially connect the side plates to the flange; and a friction mechanism rotatable fitted around the hub and associated to the side plate for generating a friction force in accordance with relative torsion between the side plates and the flange; the friction mechanism including an annular friction member, of which outer periphery is radially held and guided concentrically to a center of the disc by circumferentially spaced projections formed on the adjacent side plate.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: November 29, 1988
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Tamio Nagao, Toru Hamada, Toshiaki Kikuchi
  • Patent number: 4591348
    Abstract: A damper disc has side plates adapted to be connected to a torque input part so as to coaxially rotate therewith. A hub is connected to a torque output part and rotates coaxially to the side plates. A sub-plate is adapted to torsionally turn with respect to the side plates and the hub and is disposed coaxially thereto. A first spring mechanism circumferentially connects the sub-plate to the hub. A second spring mechanism circumferentially connects the side plates to the sub-plate. The spring mechanisms include a plurality of torsion springs disposed in series and spring seat units interposed between the adjacent springs. These spring seat units include a spring seat to which one of the springs is seated, a second spring seat to which another one of these springs is seated and a connecting means for connecting both spring seats together so that both spring seats can change their orientation with respect to the radial direction of the disc.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: May 27, 1986
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hiroshi Takeuchi, Toru Hamada