Patents by Inventor Yuji Fujii

Yuji Fujii 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: 11969830
    Abstract: An aluminum alloy brazing sheet including a core material, a sacrificial material provided on one surface of the core material, a brazing filler material provided on the other surface side of the core material, and an intermediate layer provided between the core material and the brazing filler material. The core material contains Si: 0.30 to 1.00 mass %, Mn: 0.50 to 2.00 mass %, Cu: 0.60 to 1.20 mass %, Mg: 0.05 to 0.80 mass %, and Al. The sacrificial material contains Si: 0.10 to 1.20 mass %, Zn: 2.00 to 7.00 mass %, Mn: 0.40 mass % or less, and Al. The intermediate layer contains Si: 0.05 to 1.20 mass %, Mn: 0.50 to 2.00 mass %, Cu: 0.10 to 1.20 mass %, and Al.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: April 30, 2024
    Assignee: Kobe Steel, Ltd.
    Inventors: Tatsuki Hashimoto, Kenichiro Yoshida, Yuji Shibuya, Akihiro Tsuruno, Yoshikazu Miyano, Hajime Sugito, Michiyasu Yamamoto, Masayuki Makita, Arisu Fujii, Shin Takewaka, Hayaki Teramoto, Koichi Yamamoto, Toshihide Ninagawa
  • Patent number: 11971390
    Abstract: A method includes two or more reference strain gradient information being a relationship between the strain at the hole edge and a strain gradient along a radial direction. Hole expansion forming is performed on the evaluation metal sheet under the same forming conditions as respective forming conditions corresponding to at least two pieces of the reference strain gradient information to obtain at least two limit hole expansion ratios at a hole expansion limit of the evaluation metal sheet. A formable region of the evaluation metal sheet is obtained from the at least two pieces of the reference strain gradient information and the obtained at least two limit hole expansion ratios at the hole expansion limit. Stretch flange cracking at the sheared end face of the evaluation metal sheet is evaluated by the obtained formable region.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: April 30, 2024
    Assignee: JFE STEEL CORPORATION
    Inventors: Kento Fujii, Toyohisa Shinmiya, Yuji Yamasaki
  • Patent number: 11965591
    Abstract: A lubrication device for a helicopter including: an oil sump in which oil for lubrication is retained; a lubrication pump configured to suck the oil from the oil sump to discharge the oil; and a lubrication passage extending from the lubrication pump to a first lubrication target. The lubrication passage includes: a first supply port that supplies the oil to the first lubrication target; an oil reservoir provided upstream of the first supply port; and an opening provided upstream of the oil reservoir and above the oil reservoir. The first supply port is formed right above the first lubrication target.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: April 23, 2024
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Isao Fujii, Yuji Yamazaki, Masatoshi Matsumoto, Kenta Ogasawara
  • Patent number: 11618459
    Abstract: A vehicle includes a powertrain, an inertial measurement unit configured to measure inertial forces exerted onto the vehicle, and a controller. The controller is programmed to control the torque at the powertrain based on a mapped relationship between the inertial forces and a vehicle velocity, wherein the mapped relationship utilizes at least one mapping parameter. The controller is further programmed to estimate a mass of the vehicle based on the mapping parameter.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: April 4, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Yuji Fujii, Ankit Saini, Yijing Zhang, Weitian Chen, Akshay Bichkar, Conor Edward Sullivan, Hong Jiang, Thirumal Nagadi, Jose Velazquez Alcantar
  • Publication number: 20230026225
    Abstract: A hybrid vehicle includes an engine, an electric machine, a disconnect clutch configured to selectively couple the engine to the electric machine, and a controller. The controller is programmed to, in response to a request to start the engine with the electric machine, command a target pressure to the disconnect clutch that depends on a seal friction derived from a measured line pressure of the disconnect clutch and a rate change of the measured line pressure.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 26, 2023
    Inventors: Hiral Jayantilal Haria, Yuji Fujii, Akshay Bichkar, Yang Xu
  • Patent number: 11535241
    Abstract: A vehicle includes a transmission, an engine, a clutch, and a controller. The transmission has an input. The engine is configured to generate and deliver torque to the input. The clutch is configured to connect and disconnect the engine from the input, and to crank the engine during an engine start. The controller is programmed to, in response to a command to adjust a torque of the clutch during an engine start and a presence of first condition of the clutch, drive a clutch actuator pressure to a first desired value based on a first transfer function. The controller is further programmed to, in response to a command to adjust the torque of the clutch during the engine start and a presence of a second condition of the clutch, drive the clutch actuator pressure to a second desired value based on a second transfer function.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: December 27, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Yijing Zhang, Yuji Fujii, Jason Meyer, Akshay Bichkar, Hirai Jayantilal Haria, Huanyi Shui
  • Patent number: 11498566
    Abstract: A vehicle includes a transmission, a powerplant, an inertial measurement unit, and a controller. The transmission has an input shaft and an output shaft. The powerplant is configured to generate and deliver torque to the input shaft. The inertial measurement unit is configured to measure inertial forces exerted onto the vehicle. The controller is programmed to, in response to a demanded torque at the output shaft and a non-transient condition of the vehicle, control the torque at the output shaft based on a torque at the input shaft and a gear ratio of the step-ratio transmission. The controller is further programmed to, in response to the demanded torque at the output shaft and a transient condition of the vehicle, control the torque at the output shaft based on the inertial forces and a vehicle velocity.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: November 15, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Fengyi Chen, Yijing Zhang, Bradley Dean Riedle, Weitian Chen, Yuji Fujii
  • Patent number: 11480493
    Abstract: A gas safety device includes: flow path through which a gas flows; ultrasonic sensor for measuring a flow rate of the gas flowing through flow path; flow rate calculator that calculates a flow rate measurement data pieces from a measurement value of the flow rate measured by ultrasonic sensor; and leakage detector that detects a minor leakage of the gas. The gas safety device further includes: pulsation recognizer that recognizes that pulsation is occurring when a fluctuation in the flow rate measuring data pieces calculated by flow rate calculator is greater than or equal to a predetermined value; and pulsating flow rate corrector that corrects, when pulsation recognizer determines that the pulsation is occurring, the flow rate measurement data piece by a predetermined value. Furthermore, when pulsation recognizer determines that the pulsation is occurring, leakage detector determines whether a leakage is present using the flow rate measurement data piece corrected by pulsating flow rate corrector.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: October 25, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuji Fujii, Takashi Kayaba, Yoshihiro Ueda, Kenji Yasuda, Taiti Gyoutoku, Hideki Kinoshita
  • Publication number: 20220306080
    Abstract: A vehicle includes a transmission, an engine, a clutch, and a controller. The transmission has an input. The engine is configured to generate and deliver torque to the input. The clutch is configured to connect and disconnect the engine from the input, and to crank the engine during an engine start. The controller is programmed to, in response to a command to adjust a torque of the clutch during an engine start and a presence of first condition of the clutch, drive a clutch actuator pressure to a first desired value based on a first transfer function. The controller is further programmed to, in response to a command to adjust the torque of the clutch during the engine start and a presence of a second condition of the clutch, drive the clutch actuator pressure to a second desired value based on a second transfer function.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Yijing Zhang, Yuji Fujii, Jason Meyer, Akshay Bichkar, Hiral Jayantilal Haria, Huanyi Shui
  • Publication number: 20220309845
    Abstract: A vehicle includes an engine, a clutch, and a controller. The clutch is configured to crank the engine during an engine start. The controller is programmed to, in response to a command to start the engine, adjust a clutch actuator pressure to drive a disconnect clutch torque toward a desired value. The controller is further programmed to, in response to variances of the disconnect clutch torque relative to the clutch actuator pressure exceeding a threshold, issue a disconnect clutch fault.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Huanyi Shui, Yijing Zhang, Hang Yang, Devesh Upadhyay, Hiral Jayantilal Haria, Yuji Fujii
  • Publication number: 20220269834
    Abstract: A method of producing a disconnect clutch includes producing a disconnect clutch, configured to selectively connect an engine and an electric machine, such that the disconnect clutch exhibits a clutch transfer function that causes a transmission output shaft torque variability that is less than a predetermined threshold during a simulated starting of the engine using the electric machine.
    Type: Application
    Filed: February 22, 2021
    Publication date: August 25, 2022
    Inventors: Hang Yang, Huanyi Shui, Yijing Zhang, Hiral Jayantilal Haria, Bradley Dean Riedle, Yuji Fujii
  • Patent number: 11414081
    Abstract: A powertrain includes a transmission having an input shaft, an output shaft, and a plurality of clutches engageable in various combinations to establish varying power flow paths between the input and output shafts. A controller is programmed to, responsive to a shift of the transmission: reduce torque capacity of an off-going one of the clutches and increase torque capacity of an oncoming one of the clutches during a torque transfer phase of the shift, and, in response to an inertia phase of the shift, continue to command non-zero torque capacity to the off-going clutch such that the off-going clutch brakes the output shaft throughout an entire duration of the inertia phase.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: August 16, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Ivan Cvok, Josko Deur, Vladimir Ivanovic, Yijing Zhang, Yuji Fujii
  • Publication number: 20220242414
    Abstract: A powertrain includes a transmission having an input shaft, an output shaft, and a plurality of clutches engageable in various combinations to establish varying power flow paths between the input and output shafts. A controller is programmed to, responsive to a shift of the transmission: reduce torque capacity of an off-going one of the clutches and increase torque capacity of an oncoming one of the clutches during a torque transfer phase of the shift, and, in response to an inertia phase of the shift, continue to command non-zero torque capacity to the off-going clutch such that the off-going clutch brakes the output shaft throughout an entire duration of the inertia phase.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 4, 2022
    Inventors: Ivan Cvok, Josko Deur, Vladimir Ivanovic, Yijing Zhang, Yuji Fujii
  • Publication number: 20220018403
    Abstract: A vehicle includes a transmission, an engine, a disconnect clutch, an inertial measurement unit, and a controller. The transmission has an input shaft and an output shaft. The engine is configured to generate and deliver torque to the input shaft. The disconnect clutch is configured to connect and disconnect the engine from the input shaft. The disconnect clutch is also configured to crank the engine during an engine start. The inertial measurement unit is configured to measure inertial forces exerted onto the vehicle. The controller is programmed to, in response to a command to adjust a torque of the disconnect clutch to a desired value that is derived from the inertial forces and a vehicle velocity, drive the clutch actuator pressure to a value that corresponds to the desired value.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 20, 2022
    Inventors: Yijing Zhang, Fengyi Chen, Bradley Dean Riedle, Weitian Chen, Yuji Fujii
  • Publication number: 20220017065
    Abstract: A vehicle includes a transmission, a powerplant, an inertial measurement unit, and a controller. The transmission has an input shaft and an output shaft. The powerplant is configured to generate and deliver torque to the input shaft. The inertial measurement unit is configured to measure inertial forces exerted onto the vehicle. The controller is programmed to, in response to a demanded torque at the output shaft and a non-transient condition of the vehicle, control the torque at the output shaft based on a torque at the input shaft and a gear ratio of the step-ratio transmission. The controller is further programmed to, in response to the demanded torque at the output shaft and a transient condition of the vehicle, control the torque at the output shaft based on the inertial forces and a vehicle velocity.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 20, 2022
    Inventors: Fengyi Chen, Yijing Zhang, Bradley Dean Riedle, Weitian Chen, Yuji Fujii
  • Patent number: 11209054
    Abstract: A vehicle includes a transmission, an engine, a disconnect clutch, an inertial measurement unit, and a controller. The transmission has an input shaft and an output shaft. The engine is configured to generate and deliver torque to the input shaft. The disconnect clutch is configured to connect and disconnect the engine from the input shaft. The disconnect clutch is also configured to crank the engine during an engine start. The inertial measurement unit is configured to measure inertial forces exerted onto the vehicle. The controller is programmed to, in response to a command to adjust a torque of the disconnect clutch to a desired value that is derived from the inertial forces and a vehicle velocity, drive the clutch actuator pressure to a value that corresponds to the desired value.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: December 28, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Yijing Zhang, Fengyi Chen, Bradley Dean Riedle, Weitian Chen, Yuji Fujii
  • Patent number: 11198440
    Abstract: A control system and method for controlling a multiple gear ratio automatic transmission in a powertrain for an automatic transmission having pressure activated fiction torque elements to effect gear ratio upshifts. The friction torque elements are synchronously engaged and released during a torque phase of an upshift event as torque from a torque source is increased while allowing the off-going friction elements to slip, followed by an inertia phase during which torque from a torque source is modulated. A perceptible transmission output torque reduction during an upshift is avoided. Measured torque values are used during a torque phase of the upshift to correct an estimated oncoming friction element target torque so that transient torque disturbances at an oncoming clutch are avoided and torque transients at the output shaft are reduced.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: December 14, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Christopher John Teslak, Gregory Michael Pietron, Hongtei Eric Tseng, Yuji Fujii, Michael Glenn Fodor, Diana Yanakiev, Seung-Hoon Lee
  • Publication number: 20210116945
    Abstract: Provided is a gas safety device including: flow path for flowing gas; flow rate measurement unit for measuring a flow rate of the gas flowing through flow path; absolute pressure sensor disposed inside flow path to measure an absolute pressure of the gas; absolute pressure sensor disposed outside flow path to measure an absolute pressure of atmospheric pressure; and gas pressure determination unit that measures a change in gas supply pressure from the absolute pressure of the gas and the absolute pressure of the atmospheric pressure measured by absolute pressure sensor and absolute pressure sensor, respectively. The gas safety device further includes shutoff valve that shuts off flow path, and control circuit that controls flow rate measurement unit and that causes shutoff valve to shut off flow path when determining abnormality from the flow rate of the gas measured by flow rate measurement unit or the change in gas supply pressure measured by gas pressure determination unit.
    Type: Application
    Filed: May 28, 2019
    Publication date: April 22, 2021
    Inventors: TAKASHI KAYABA, YUJI FUJII, KENJI YASUDA, MASANORI NAKAMURA, YUKI ANAN
  • Publication number: 20210010894
    Abstract: A gas safety device includes: flow path through which a gas flows; ultrasonic sensor for measuring a flow rate of the gas flowing through flow path; flow rate calculator that calculates a flow rate measurement data pieces from a measurement value of the flow rate measured by ultrasonic sensor; and leakage detector that detects a minor leakage of the gas. The gas safety device further includes: pulsation recognizer that recognizes that pulsation is occurring when a fluctuation in the flow rate measuring data pieces calculated by flow rate calculator is greater than or equal to a predetermined value; and pulsating flow rate corrector that corrects, when pulsation recognizer determines that the pulsation is occurring, the flow rate measurement data piece by a predetermined value. Furthermore, when pulsation recognizer determines that the pulsation is occurring, leakage detector determines whether a leakage is present using the flow rate measurement data piece corrected by pulsating flow rate corrector.
    Type: Application
    Filed: March 14, 2019
    Publication date: January 14, 2021
    Inventors: YUJI FUJII, TAKASHI KAYABA, YOSHIHIRO UEDA, KENJI YASUDA, TAITI GYOUTOKU, HIDEKI KINOSHITA
  • Publication number: 20200296985
    Abstract: An object of the present invention is to provide tea leaf powder from which the liquid extracted has a favorable liquid color. That is, the present invention provides a tea leaf powder having 300 ?m or more of 50% particle diameter measured by a laser diffraction type particle size distribution measuring apparatus on volume basis, and 0.05% by weight or more of anthocyanin content. The tea leaf powder preferably has 120 ?m or more of 10% particle diameter measured by a laser diffraction type particle size distribution measuring apparatus on volume basis.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 24, 2020
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masafumi WASAI, Nobuaki URATA, Yuji FUJII