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).
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Publication number: 20200296985Abstract: 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: ApplicationFiled: March 21, 2017Publication date: September 24, 2020Applicant: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Masafumi WASAI, Nobuaki URATA, Yuji FUJII
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Patent number: 10591330Abstract: Flow rate measurement is performed with a propagation time by using a pair of ultrasonic wave oscillators which is provided in flow path through which a fluid to be measured flows, and is disposed so as to transmit and receive an ultrasonic wave signal by causing the ultrasonic wave signal to be reflected on an inner wall of flow path at least once. In addition, adjustment of an amplification rate is periodically performed by amplifier, which amplifies the ultrasonic wave signal received by each of the ultrasonic wave oscillators to a predetermined amplitude, and a difference between a previous amplification rate and a current amplification rate is a predetermined value or more, and the instantaneous flow rate calculated by flow rate calculation unit is a predetermined flow rate or less, the reference voltage is adjusted by reference voltage setting unit. With the configuration, the propagation time can be stably measured and deterioration of the maximum amplitude is prevented.Type: GrantFiled: December 15, 2016Date of Patent: March 17, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuki Shiota, Kenji Yasuda, Ryuji Iwamoto, Yuji Fujii, Yasuo Koba
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Patent number: 10451125Abstract: A vehicle includes a transmission and a controller. The transmission has clutches that are configured to establish multiple speed ratios, including a first clutch. The first clutch has a measured drag torque distribution. The measured drag torque distribution has a median and a standard deviation. The controller is programmed to increase a pressure at a rate to engage the first clutch and to increase the rate in response to a measured first clutch torque exceeding the median by a predetermined multiple of the standard deviation.Type: GrantFiled: August 11, 2017Date of Patent: October 22, 2019Assignee: Ford Global Technologies, LLCInventors: Gregory Michael Pietron, Qi Wang, Yuji Fujii, Rohit Hippalgaonkar, Joseph F. Kucharski, Jason Meyer, Stuart N. Ford
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Patent number: 10451470Abstract: A flow rate measurement device of the present invention includes a flow rate signal detection unit for detecting a flow rate signal of a fluid to be measured flowing through flow path, flow rate calculation unit for calculating a flow rate from the flow rate signal detected by the flow rate signal detection unit, and oscillation circuit for generating a reference clock. Furthermore, the flow rate measurement device includes temperature calculation unit for calculating a temperature from a frequency change resulting from a temperature change of oscillation circuit, and flow rate correction unit for correcting the flow rate calculated by the flow rate calculation unit by obtaining an offset flow rate at a desired temperature based on the temperature calculated by temperature calculation unit. Thus, accuracy of flow rate measurement can be improved.Type: GrantFiled: May 16, 2013Date of Patent: October 22, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Fumikazu Shiba, Yuji Nakabayashi, Kouichi Takemura, Yuji Fujii
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Patent number: 10421457Abstract: A system and method for operating an automatic start/stop system in a motor vehicle having an internal combustion engine, an automatic transmission and a torque converter with an impeller disconnect clutch is disclosed. A controller may implement an engine start/stop system by, at appropriate times, stopping engine by halting fuel and restarting engine when propulsion is needed. During an engine start/stop event, the engine is automatically shut down and the impeller clutch of the torque converter may be disengaged to decouple the impeller and the engine to provide for fuel and emissions savings.Type: GrantFiled: May 3, 2016Date of Patent: September 24, 2019Assignee: Ford Global Technologies, LLCInventors: Hafiz Shafeek Khafagy, Siraj Siddiqui, Yuji Fujii, Steven Anatole Frait
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Patent number: 10344851Abstract: During a transmission upshift, a torque capacity of an off-going clutch is maintained at a non-zero state during the transition from the torque phase to the inertia phase and throughout a substantial portion of the inertia phase. This permits the inertia phase to be completed faster without an unacceptable increase in output torque during the torque phase. Monotonically reducing the off-going clutch torque and using feedback from an output torque sensor enable sufficiently precise control of the off-going clutch torque capacity during this interval.Type: GrantFiled: June 27, 2017Date of Patent: July 9, 2019Assignee: Ford Global Technologies, LLCInventors: Hiral Jayantilal Haria, Yuji Fujii, Gregory Michael Pietron, Rohit Hippalgaonkar, Todd Mccullough
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Patent number: 10290727Abstract: A performance of a semiconductor device including an RC-IGBT is improved. An AlNiSi layer (a layer containing aluminum (Al), nickel (Ni), and silicon (Si)) is formed between a back surface of a semiconductor substrate and a back surface electrode. Thus, a favorable ohmic junction can be obtained between the back surface electrode and an N+-type layer constituting a cathode region in an embedded diode, and a favorable ohmic junction can be obtained between the back surface electrode and a P-type layer constituting a collector region in an IGBT. The AlNiSi layer contains 10 at % or more of each of the aluminum (Al), the nickel (Ni), and the silicon (Si).Type: GrantFiled: January 12, 2017Date of Patent: May 14, 2019Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Sho Nakanishi, Yuji Fujii
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Publication number: 20190096998Abstract: A method for manufacturing a semiconductor device includes the steps of forming a metal film (Ni film) over the bottom surface of a contact hole that exposes a portion including SiC at the bottom surface, and performing a heat treatment to form a silicide film at the bottom surface of the contact hole by a silicidation reaction of the metal film MT and the portion including SiC. Also, the heat treatment step is a step of irradiating a laser beam on the surface of a SiC substrate. As the heat treatment, annealing is performed using the laser beam that goes through SiC and is absorbed by metal (Ni and the like).Type: ApplicationFiled: July 13, 2018Publication date: March 28, 2019Inventors: Yuji FUJII, Kenichi Hisada, Yasunori Yanashita
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Publication number: 20190084576Abstract: 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: ApplicationFiled: November 16, 2018Publication date: March 21, 2019Inventors: Christopher John Teslak, Gregory Michael Pietron, Hongtei Eric Tseng, Yuji Fujii, Michael Glenn Fodor, Diana Yanakiev, Seung-Hoon Lee
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Publication number: 20190078918Abstract: Flow rate measurement is performed with a propagation time by using a pair of ultrasonic wave oscillators which is provided in flow path through which a fluid to be measured flows, and is disposed so as to transmit and receive an ultrasonic wave signal by causing the ultrasonic wave signal to be reflected on an inner wall of flow path at least once. In addition, adjustment of an amplification rate is periodically performed by amplifier, which amplifies the ultrasonic wave signal received by each of the ultrasonic wave oscillators to a predetermined amplitude, and a difference between a previous amplification rate and a current amplification rate is a predetermined value or more, and the instantaneous flow rate calculated by flow rate calculation unit is a predetermined flow rate or less, the reference voltage is adjusted by reference voltage setting unit. With the configuration, the propagation time can be stably measured and deterioration of the maximum amplitude is prevented.Type: ApplicationFiled: December 15, 2016Publication date: March 14, 2019Inventors: KAZUKI SHIOTA, KENJI YASUDA, RYUJI IWAMOTO, YUJI FUJII, YASUO KOBA
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Publication number: 20190048947Abstract: A vehicle includes a transmission and a controller. The transmission has clutches that are configured to establish multiple speed ratios, including a first clutch. The first clutch has a measured drag torque distribution. The measured drag torque distribution has a median and a standard deviation. The controller is programmed to increase a pressure at a rate to engage the first clutch and to increase the rate in response to a measured first clutch torque exceeding the median by a predetermined multiple of the standard deviation.Type: ApplicationFiled: August 11, 2017Publication date: February 14, 2019Inventors: Gregory Michael PIETRON, Qi WANG, Yuji FUJII, Rohit HIPPALGAONKAR, Joseph F. KUCHARSKI, Jason MEYER, Stuart N. FORD
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Patent number: 10180186Abstract: A transmission and control method are disclosed which ensure proper stroke pressure and minimize torque transients during a shift event. The transmission includes a clutch having a torque capacity based on a fluid pressure, a torque sensor adapted to measure a torque value that varies in relationship to the torque capacity, and a controller. The method includes varying the fluid pressure around a predetermined value, measuring a resulting torque difference with the torque sensor, and adjusting a clutch control parameter if the resulting torque difference is less than a threshold value.Type: GrantFiled: April 21, 2016Date of Patent: January 15, 2019Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Gregory Michael Pietron, Yuji Fujii, Joseph F. Kucharski, Nicholas Joseph Witte, Stephen Michael Cicala, Bradley Dean Riedle, Diana Yanakiev, Nimrod Kapas, Davorin David Hrovat
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Patent number: 10166980Abstract: A vehicle having a drivetrain is controlled based on a difference between a torque transmitted by the drivetrain when the vehicle has constant non-zero speed and the torque transmitted by the drivetrain when the vehicle is accelerating. The drivetrain torque may be measured by a drivetrain torque sensor. The effective vehicle mass is computed from the torque difference. The computed mass of the vehicle is used to adjust the activation of a collision warning system or a collision avoidance system. A method of operating a vehicle where the activation of a collision avoidance system is adjusted based on a difference between a torque transmitted by a drivetrain when the vehicle has constant non-zero speed and the torque transmitted by the drivetrain when the vehicle is accelerating is disclosed. The torque difference is used to compute a vehicle mass that is used to adjust a collision warning distance.Type: GrantFiled: February 28, 2013Date of Patent: January 1, 2019Assignee: Ford Global Technologies, LLCInventors: Yuji Fujii, Nimrod Kapas, Joseph F. Kucharski, Diana Yanakiev, Eric Hongtei Tseng, Jianbo Lu, Gregory Michael Pietron
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Patent number: 10166989Abstract: A control system and method for controlling a multiple gear ratio automatic transmission in a powertrain for an automatic transmission having pressure activated friction 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: GrantFiled: January 4, 2016Date of Patent: January 1, 2019Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christopher John Teslak, Gregory Michael Pietron, Hongtei Eric Tseng, Yuji Fujii, Michael Glenn Fodor, Diana Yanakiev, Seung-Hoon Lee
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Publication number: 20180372214Abstract: During a transmission upshift, a torque capacity of an off-going clutch is maintained at a non-zero state during the transition from the torque phase to the inertia phase and throughout a substantial portion of the inertia phase. This permits the inertia phase to be completed faster without an unacceptable increase in output torque during the torque phase. Monotonically reducing the off-going clutch torque and using feedback from an output torque sensor enable sufficiently precise control of the off-going clutch torque capacity during this interval.Type: ApplicationFiled: June 27, 2017Publication date: December 27, 2018Inventors: Hiral Jayantilal Haria, Yuji Fujii, Gregory Michael Pietron, Rohit Hippalgaonkar, Todd Mccullough
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Patent number: 10113891Abstract: A flow rate measurement device includes a turbulence reduction component having opening portions and disposed between a measurement channel and a pair of hole portions across which a pair of ultrasonic transceivers are disposed from the measurement channel. The pair of opening portions of the turbulence reduction component each have frame pieces which are substantially identical in width. This makes it possible to reduce, with small attenuation of ultrasound, the occurrence of turbulence that is attributable to entrained flows in the pair of hole portions and is a cause of measurement error, thereby ensuring measurement accuracy.Type: GrantFiled: March 11, 2016Date of Patent: October 30, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroshi Nakai, Kenji Yasuda, Masato Satou, Hideaki Morihana, Yuji Fujii
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Patent number: 10086836Abstract: Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operation may be adjusted in response to operating the hybrid vehicle in a four wheel drivel low gear range. The approaches may improve vehicle drivability and reduce driveline degradation.Type: GrantFiled: March 7, 2016Date of Patent: October 2, 2018Assignee: Ford Global Technologies, LLCInventors: Jeffrey Allen Doering, Alex O'Connor Gibson, Gregory Michael Pietron, James William Loch McCallum, Yuji Fujii
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Patent number: 10001175Abstract: A transmission includes a case, a torque sensor, and a two-piece output shaft. The torque sensor is attached to the case and defines an inner diameter. The two-piece output shaft assembly is partially disposed within the case and includes a planet carrier operably coupled to a shaft extending through the inner diameter. The carrier and the shaft are separate components that are directly connected together and the carrier defines a park gear.Type: GrantFiled: October 27, 2015Date of Patent: June 19, 2018Assignee: Ford Global Technologies, LLCInventors: John Edward Brevick, Yuji Fujii, Gregory Michael Pietron, Gregory Daniel Goleski, Jeffrey Edward Maurer, Mark Edward Urbaniak
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Patent number: 9951827Abstract: A method of determining automatic transmission lubrication fluid flow rates corresponding to a running vehicle without direct oil flow measurements is disclosed. A set of in-vehicle clutch torques for a chosen clutch pack during a gear shift event for a set of shift conditions is obtained. A series of bench tests at various clutch-pack clearances and oil-flow rates for the set of shift conditions are performed. The clearances and oil-flow rates are adjusted in response to the measured magnitudes exceeding thresholds. In-vehicle transmission lubrication oil-flow rates are estimated at the chosen clutch pack for the set of shift conditions when the bench-test and in-vehicle clutch torques are less than the thresholds. The steps are reproduced for other engine conditions and fluid temperatures corresponding to other transmission gear positions. A functional map of in-vehicle oil flow rates are produced, and the transmission is adjusted based on the map.Type: GrantFiled: March 11, 2016Date of Patent: April 24, 2018Assignee: Ford Global Technologies, LLCInventors: Yuji Fujii, Gregory Michael Pietron, Rohit Hippalgaonkar
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Patent number: 9945300Abstract: A method of operating a vehicle includes measuring a transmission output torque, measuring impeller and turbine speeds, estimating a transmission component torque, and adjusting an engine torque to avoid overstressing a transmission component such as a gear. The method does not rely on an accurate estimate of engine torque. Furthermore, the method does not rely on a fixed transmission torque rating in each gear ratio.Type: GrantFiled: March 25, 2015Date of Patent: April 17, 2018Assignee: Ford Global Technologies, LLCInventors: Rohit Hippalgaonkar, Joseph F. Kucharski, Yuji Fujii, Gregory Michael Pietron, Jason Meyer, Eric Hongtei Tseng