Patents by Inventor Ken Takeuchi

Ken Takeuchi 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: 20230360884
    Abstract: A plasma processing apparatus includes: a chamber; first and second matching circuits; a first RF generator generating a first RF pulsed signal including a plurality of first pulse cycles in which each cycle includes first, second, and third periods, and the first RF pulsed signal has first, second, and third power levels in first, second, and third periods, respectively; a second RF generator generating a second RF pulsed signal including a plurality of second pulse cycles in which each cycle includes fourth and fifth periods, and the second RF pulsed signal has fourth and fifth power levels in fourth and fifth periods, respectively; and a third RF generator generating a third RF pulsed signal including a plurality of third pulse cycles in which each cycle includes sixth and seventh periods, and the third RF pulsed signal has sixth and seventh power levels in sixth and seventh periods, respectively.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 9, 2023
    Applicant: Tokyo Electron Limited
    Inventors: Takahiro TAKEUCHI, Ken KOBAYASHI
  • Publication number: 20230291221
    Abstract: A battery excavator 1 as an electric powered working machine includes a secondary battery 201, a battery management unit 202 that manages the secondary battery 201, and a controller 300 that controls a normal charge or a diagnostic charge for the secondary battery 201. The controller 300 includes: a diagnostic charge recommendation determination unit 301 that determines whether to recommend the diagnostic charge or not based on an operation history of the secondary battery output from the battery management unit 202; and a diagnostic charge execution determination unit 302 that determines whether to execute the diagnostic charge or not based on a state of the secondary battery output from the battery management unit 202, an estimated charge period necessary for the diagnostic charge, and a site work plan including a work start time, when the diagnostic charge is determined to be recommended.
    Type: Application
    Filed: July 26, 2021
    Publication date: September 14, 2023
    Inventors: Takashi KAMIJOH, Ken TAKEUCHI, Itaru NAYA, Kenta TANIGAKI, Takeshi INOUE
  • Patent number: 11756767
    Abstract: A plasma processing apparatus includes: a chamber; first and second matching circuits; a first RF generator generating a first RF pulsed signal including a plurality of first pulse cycles in which each cycle includes first, second, and third periods, and the first RF pulsed signal has first, second, and third power levels in first, second, and third periods, respectively; a second RF generator generating a second RF pulsed signal including a plurality of second pulse cycles in which each cycle includes fourth and fifth periods, and the second RF pulsed signal has fourth and fifth power levels in fourth and fifth periods, respectively; and a third RF generator generating a third RF pulsed signal including a plurality of third pulse cycles in which each cycle includes sixth and seventh periods, and the third RF pulsed signal has sixth and seventh power levels in sixth and seventh periods, respectively.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: September 12, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Takahiro Takeuchi, Ken Kobayashi
  • Publication number: 20220274487
    Abstract: In a case of a normal operation, a battery controller (22) assumes a normal operation mode and permits charging and discharging of a battery module (21). Upon receiving a discharge command from a vehicle body controller (17) for completely discharging the battery module (21), the battery controller (22) assumes a discharge mode to discharge the battery module (21) to reach a safe voltage level and store discharge information. Upon reading out the discharge information, the battery controller (22) assumes a discharge prohibition mode to prohibit charging and discharging of the battery module (21).
    Type: Application
    Filed: July 4, 2019
    Publication date: September 1, 2022
    Inventors: Toshihiko WATANABE, Seiji ISHIDA, Ken TAKEUCHI
  • Patent number: 11332244
    Abstract: Provided are a device configuration, method, etc. for performing imaging investigation in an investigation space using an unmanned aerial vehicle. A system includes: a flight start platform; the vehicle which is connected to a line-type member and equipped with an investigation camera, a travel-direction imaging camera, and a vehicle-side communication unit; an external control device which is equipped with a display unit and an external control device-side communication unit, and which receives the travel-direction image data through the external control device-side communication unit, receives an input of control commands for the vehicle while having a video or still image obtained from the travel-direction image data displayed on the display unit, and transmits a signal indicating the control commands from the external control device-side communication unit; and an attraction device which is connected to the line-type member and attracts the vehicle.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: May 17, 2022
    Assignees: ACSL LTD., NJS CO., LTD.
    Inventors: Kenji Kuroiwa, Shosuke Inoue, Yusuke Inagaki, Patrik Ken Takeuchi
  • Patent number: 11198352
    Abstract: A relay (25) connects and disconnects an electrical circuit to which an inverter (16) and an electricity storage device (19) are connected. A BCU (22) controls the electricity storage device (19). An HC (27) controls an electric motor (15), the inverter (16) and the BCU (22). The HC (27) and the BCU (22) respectively have FET switches (30, 31) for controlling supply and stop of the excitation current in the relay (25). When the electricity storage device (19) is determined to be in an abnormal state, the BCU (22) transmits an abnormal signal to the HC (27), and when a predetermined time has elapsed, turns off (opens) the first FET switch (30) of the BCU (22). The HC (27) executes stop processing based upon the abnormal signal received from the BCU (22) and then turns off (opens) the second FET switch (31) of the HC (27).
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: December 14, 2021
    Assignees: Hitachi Construction Machinery Co., Ltd., Hitachi Automotive Systems, Ltd.
    Inventors: Itaru Naya, Seiji Ishida, Ken Takeuchi, Mutsumi Kikuchi
  • Patent number: 11149409
    Abstract: A main controller and a hybrid controller control an engine, an assist generator motor, a hydraulic pump and an electricity storage device. In this case, the hybrid controller is provided with a performance state recovery part that performs performance state recovery of the electricity storage device. In a case where a performance state amount varying with repetition of a discharge and a charge of the electricity storage device, specifically, a current integrated value ratio of the electricity storage device goes beyond a predetermined threshold value (L1%), the performance state recovery part limits power of the hydraulic pump. Thereby, the performance state recovery part performs the performance state recovery of the electricity storage device.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: October 19, 2021
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Itaru Naya, Shinya Imura, Masafumi Hita, Seiji Ishida, Ken Takeuchi
  • Patent number: 11142887
    Abstract: An engine cooling system (22) includes an engine (11), an engine cooling pipe line (23), an engine water pump (24) and an engine radiator (25). An electricity storage device cooling system (27) includes an electricity storage device (19), an electricity storage device cooling pipe line (28), an electricity storage device water pump (29) and an electricity storage device radiator (31). Different heat-transfer media (engine cooling water and electricity storage device cooling water) flow respectively in the engine cooling system (22) and the electricity storage device cooling system (27). Further, a heating heat exchanger (32) is provided in the halfway of the engine cooling pipe line (23) and in the halfway of the electricity storage device cooling pipe line (28) for performing heat exchange between the engine cooling water and the electricity storage device cooling water.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: October 12, 2021
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Watanabe, Ken Takeuchi, Tadashi Osaka
  • Patent number: 11085172
    Abstract: A storage battery (21) is configured of a plurality of cells (22A) to (22N) series-connected to each other. A battery controller (27) receives power supplied from a lead battery (31). The battery controller (27) executes balancing control that reduces variation in cell voltages (VcA) to (VcN) of the plurality of cells (22A) to (22N). The battery controller (27) executes the balancing control in a time range during which a voltage of the lead battery (31) becomes equal to or more than a predetermined given voltage value (V1) and a charging rate of the storage battery (21) becomes equal to or more than a predetermined given charging rate value (SOC1) after a key switch (16) is switched from an on state to an off state.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: August 10, 2021
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Haruki Sugiyama, Ken Takeuchi, Akira Watanabe
  • Publication number: 20210214920
    Abstract: A main controller and a hybrid controller control an engine, an assist generator motor, a hydraulic pump and an electricity storage device. In this case, the hybrid controller is provided with a performance state recovery part that performs performance state recovery of the electricity storage device. In a case where a performance state amount varying with repetition of a discharge and a charge of the electricity storage device, specifically, a current integrated value ratio of the electricity storage device goes beyond a predetermined threshold value (L1%), the performance state recovery part limits power of the hydraulic pump. Thereby, the performance state recovery part performs the performance state recovery of the electricity storage device.
    Type: Application
    Filed: March 14, 2017
    Publication date: July 15, 2021
    Inventors: Itaru NAYA, Shinya IMURA, Masafumi HITA, Seiji ISHIDA, Ken TAKEUCHI
  • Publication number: 20210171196
    Abstract: The objective of the present invention is to provide a device configuration, a method and the like for performing an imaging survey within a survey space using an unmanned aerial vehicle. Provided is an unmanned aerial vehicle provided with at least four rotating blades, and a control unit which controls the rotation of the at least four rotating blades, wherein the unmanned aerial vehicle is provided with a survey camera in a position on a chassis of the unmanned aerial vehicle, between at least one rotating blade positioned on the side in the direction of travel, from among the at least four rotating blades, and at least one rotating blade positioned on the opposite side to the direction of travel, and wherein, when flying above a surface in which a liquid is at least partially present, the unmanned aerial vehicle flies while at least partially preventing scattered liquid from reaching above the chassis by means of the at least four rotating blades.
    Type: Application
    Filed: April 10, 2019
    Publication date: June 10, 2021
    Applicants: Autonomous Control Systems Laboratory Ltd., NJS Co., Ltd.
    Inventors: Kenji KUROIWA, Shosuke INOUE, Yusuke INAGAKI, Patrik Ken TAKEUCHI
  • Publication number: 20210163131
    Abstract: Provided are a device configuration, method, etc. for performing imaging investigation in an investigation space using an unmanned aerial vehicle. A system includes: a flight start platform; the vehicle which is connected to a line-type member and equipped with an investigation camera, a travel-direction imaging camera, and a vehicle-side communication unit; an external control device which is equipped with a display unit and an external control device-side communication unit, and which receives the travel-direction image data through the external control device-side communication unit, receives an input of control commands for the vehicle while having a video or still image obtained from the travel-direction image data displayed on the display unit, and transmits a signal indicating the control commands from the external control device-side communication unit; and an attraction device which is connected to the line-type member and attracts the vehicle.
    Type: Application
    Filed: April 10, 2019
    Publication date: June 3, 2021
    Inventors: Kenji Kuroiwa, Shosuke Inoue, Yusuke Inagaki, Patrik Ken Takeuchi
  • Publication number: 20210062467
    Abstract: An engine cooling system (22) includes an engine (11), an engine cooling pipe line (23), an engine water pump (24) and an engine radiator (25). An electricity storage device cooling system (27) includes an electricity storage device (19), an electricity storage device cooling pipe line (28), an electricity storage device water pump (29) and an electricity storage device radiator (31). Different heat-transfer media (engine cooling water and electricity storage device cooling water) flow respectively in the engine cooling system (22) and the electricity storage device cooling system (27). Further, a heating heat exchanger (32) is provided in the halfway of the engine cooling pipe line (23) and in the halfway of the electricity storage device cooling pipe line (28) for performing heat exchange between the engine cooling water and the electricity storage device cooling water.
    Type: Application
    Filed: July 23, 2018
    Publication date: March 4, 2021
    Inventors: Akira WATANABE, Ken TAKEUCHI, Tadashi OSAKA
  • Publication number: 20200399856
    Abstract: A management server (52) receives a maximum value and a minimum value of the respective voltages (cell voltages) in a plurality of battery cells (19A, 19A) configuring an electricity storage device (19) of a hydraulic excavator (1) from the hydraulic excavator (1), and stores the maximum value and the minimum value in a storage device (52A). Discharge characteristics of the electricity storage device (19) are stored in the storage device (52A) in the management server (52). A battery state estimation calculating unit (52D) in the management server (52) calculates an estimation maximum value and an estimation minimum value of cell voltages in the present or in the future by adding the discharge characteristics stored in the storage device (52A) to the latest maximum value and the latest minimum value of the cell voltages stored in the storage device (52A).
    Type: Application
    Filed: June 25, 2019
    Publication date: December 24, 2020
    Inventors: Akira WATANABE, Ken TAKEUCHI, Itaru NAYA
  • Publication number: 20200199848
    Abstract: A storage battery (21) is configured of a plurality of cells (22A) to (22N) series-connected to each other. A battery controller (27) receives power supplied from a lead battery (31). The battery controller (27) executes balancing control that reduces variation in cell voltages (VcA) to (VcN) of the plurality of cells (22A) to (22N). The battery controller (27) executes the balancing control in a time range during which a voltage of the lead battery (31) becomes equal to or more than a predetermined given voltage value (V1) and a charging rate of the storage battery (21) becomes equal to or more than a predetermined given charging rate value (SOC1) after a key switch (16) is switched from an on state to an off state.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 25, 2020
    Inventors: Haruki SUGIYAMA, Ken TAKEUCHI, Akira WATANABE
  • Publication number: 20200039339
    Abstract: A relay (25) connects and disconnects an electrical circuit to which an inverter (16) and an electricity storage device (19) are connected. A BCU (22) controls the electricity storage device (19). An HC (27) controls an electric motor (15), the inverter (16) and the BCU (22). The HC (27) and the BCU (22) respectively have FET switches (30, 31) for controlling supply and stop of the excitation current in the relay (25). When the electricity storage device (19) is determined to be in an abnormal state, the BCU (22) transmits an abnormal signal to the HC (27), and when a predetermined time has elapsed, turns off (opens) the first FET switch (30) of the BCU (22). The HC (27) executes stop processing based upon the abnormal signal received from the BCU (22) and then turns off (opens) the second FET switch (31) of the HC (27).
    Type: Application
    Filed: April 12, 2018
    Publication date: February 6, 2020
    Inventors: Itaru NAYA, Seiji ISHIDA, Ken TAKEUCHI, Mutsumi KIKUCHI
  • Patent number: 10450723
    Abstract: Hybrid construction machinery has a power storage apparatus that can be warmed up quickly and has a lengthened life. The machinery includes an electric motor assisting a prime mover in power and generating electric power. The power storage apparatus transfers electric power to and from the electric motor. A warm-up circuit circulates a warming medium in the vicinity of the power storage apparatus, and a control device controls circulation of the warming medium. On-board equipment state detection units detect on-board equipment states to estimate an output request for the power storage apparatus from the on-board equipment. Circulation of the warming medium is controlled based on a temperature of the power storage apparatus and a determination temperature for determining whether to circulate the warming medium in the warm-up circuit. The control device further varies the determination temperature according to a result of detection by the on-board equipment state detection units.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: October 22, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Tadashi Osaka, Ken Takeuchi, Seiji Ishida
  • Patent number: 10150465
    Abstract: A motor generator (27) is connected mechanically to an engine (21) and a hydraulic pump (23). The hydraulic pump (23) delivers pressurized oil to cylinders (11D) to (11F) in a working mechanism (11), a traveling hydraulic motor (25) and a revolving hydraulic motor (26). The revolving hydraulic motor (26) drives a revolving device (3) in cooperation with a revolving electric motor (33). The motor generator (27) and the revolving electric motor (33) are connected electrically to an electricity storage device (31). An HCU (36) sets a target electricity storage rate (SOC0) of the electricity storage device (31) and a pump output limit (POL0) of the hydraulic pump (23) corresponding to a mode selected by a mode selection device (38). The HCU (36) controls the engine (21), the motor generator (27), the revolving electric motor (33) and the electricity storage device (31) corresponding to the target electricity storage rate (SOC0) and the pump output limit (POL0).
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: December 11, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Masafumi Hita, Seiji Ishida, Ken Takeuchi, Shinya Imura
  • Publication number: 20180320338
    Abstract: It is an object of the present invention to provide hybrid construction machinery in which a power storage apparatus can be warmed up quickly and a life of the power storage apparatus can be lengthened. The hybrid construction machinery includes: an electric motor assisting a prime mover in power and generating electric power; the power storage apparatus transferring electric power to and from the electric motor; a warm-up circuit circulating a warming medium in the vicinity of the power storage apparatus; and a control device controlling circulation of the warming medium in the warm-up circuit. The hybrid construction machinery is provided with on-board equipment state detection units that detect states of on-board equipment to estimate an output request for the power storage apparatus from the on-board equipment.
    Type: Application
    Filed: October 31, 2016
    Publication date: November 8, 2018
    Inventors: Tadashi OSAKA, Ken TAKEUCHI, Seiji ISHIDA
  • Patent number: 10060095
    Abstract: A hybrid work machine includes a controller and a temperature sensor that detects an electric storage device temperature. In a case where (Tp+Tc)?Te_min, the controller carries out a first comparison in which the controller compares a value of [(Tp+Tc)?Te_min] with a value of Ta_SOC, and the controller then selects a lower value of the first comparison. The controller then carries out a second comparison in which the controller compares the selected lower value of the first comparison with a value of [(Tp+Tc)?Te_max)]. The controller then sets a higher value of the second comparison as the torque of the assist motor Ta, wherein Tc is an accessory torque, Ta_SOC is an adjustment assist motor torque based on a current state of charge of the electric storage device, Ta is the torque of the assist motor, and Te_max is an engine maximum torque.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: August 28, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shinya Imura, Masafumi Hita, Hiroaki Amano, Seiji Ishida, Ken Takeuchi, Itaru Naya, Chiaki Takahashi