Patents by Inventor Takayuki Nagase
Takayuki Nagase 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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Patent number: 11312191Abstract: A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.Type: GrantFiled: April 16, 2020Date of Patent: April 26, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masako Nakatani, Takahiro Kawachi, Ayuko Yamada, Takuya Horiguchi, Masataka Hiro, Takayuki Nagase, Hiroshi Ito, Fumiya Kato, Subaru Toya
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Patent number: 11167768Abstract: A vehicle driving assist system includes a steering wheel contact position detector, a steering torque detector, a driving mode setting calculator, and a steering override determiner. The driving mode setting calculator is configured to set a driving mode including a first driving assist mode, a second driving assist mode, and a manual driving mode. The driving mode setting calculator is configured, while traveling in a current driving mode that is the first driving assist mode or the second driving assist mode, to allow the current driving mode to continue in a case where the steering override determiner has determined that a steering torque detected by the steering torque detector is a false detection or to cause the driving mode to make a transition to the manual driving mode in a case where the steering override determiner has determined that the steering torque is a steering override intended by a driver.Type: GrantFiled: January 7, 2019Date of Patent: November 9, 2021Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takayuki Nagase
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Patent number: 11046331Abstract: A driving assist system includes a steering wheel contact position detector, a steering torque detector, and a driving mode setting calculator. The steering wheel contact position detector includes a plurality of contact sensors disposed in a segmented state on a circumference of a holding part provided on a steering wheel, and is configured to detect a position on the steering wheel at which a driver makes a contact with the steering wheel. The driving mode setting calculator is configured to set a driving mode on the basis of a driving condition. The driving mode setting calculator is configured to determine whether a steering torque detected by the steering torque detector is a steering override intended by the driver or is a false detection, on the basis of the steering torque detected by the steering torque detector and a position at which the contact is detected by the contact sensors.Type: GrantFiled: January 7, 2019Date of Patent: June 29, 2021Assignee: SUBARU CORPORATIONInventors: Takayuki Nagase, Eiichi Shiraishi
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Patent number: 10759925Abstract: A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire characterized by initiating kneading of a rubber component and a compound of the formula (1) before kneading the rubber component and a silane coupling agent having a mercapto group. (Wherein R1 represents a straight-chain or branched chain alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms, and R2 and R3 together with nitrogen bonded thereto form a succinimide group, a maleimide group or a phthalimide group.Type: GrantFiled: September 15, 2017Date of Patent: September 1, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Tatsuhiro Tanaka, Takayuki Nagase, Keiji Ikeda
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Patent number: 10723865Abstract: The object of the present invention is to provide a tire which is excellent in steering stabilities at low temperature and at high temperature after aging without deterioration of the initial steering stabilities at low temperature and at high temperature. The present invention relates to a tire having a tread composed of a rubber composition comprising a softener comprising 5 to 50 parts by mass of an adhesive resin and 5 to 50 parts by mass of a xylene-based low-temperature plasticizer based on 100 parts by mass of a rubber component.Type: GrantFiled: July 24, 2017Date of Patent: July 28, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventor: Takayuki Nagase
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Patent number: 10619033Abstract: The present invention provides a pneumatic tire which provides a balanced improvement of fuel economy, abrasion resistance, and performance on ice and snow. Provided is a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including a butadiene polymer having a trans content of 45% by mass or higher and a vinyl content of 20% by mass or lower; silica; a silane coupling agent having two or more sulfur-containing functional groups capable of binding to diene rubbers; and a crosslinking agent having a C3 or higher alkylene group, a polysulfide group bonded to the alkylene group, and a functional group containing a benzene ring.Type: GrantFiled: August 7, 2018Date of Patent: April 14, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Nanaho Kami, Takayuki Nagase
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Patent number: 10604180Abstract: A vehicle traveling control system includes: an electric power steering device, a positioning device, a communication device, and a control unit. The communication device receives wind information including information on a wind direction and a detection position of crosswind detected on a course of a host vehicle. The crosswind blows from a side with respect to the host vehicle. The control unit changes an assist force generation map of the electric power steering device such that an assist force that the electric power steering device generates with respect to steering performed up the crosswind becomes stronger than an assist force that the electric power steering device generates with respect to steering performed down the crosswind during traveling of the host vehicle through the detection position of the crosswind.Type: GrantFiled: May 1, 2018Date of Patent: March 31, 2020Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takayuki Nagase
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Patent number: 10421842Abstract: A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire is characterized by initiating kneading of a rubber component and a compound represented by the following formula (1) before kneading the rubber component and a silane coupling agent having a mercapto group. (Wherein each of R1 to R4 independently represents a straight-chain or branched chain alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 5 to 12 carbon atoms.Type: GrantFiled: September 15, 2017Date of Patent: September 24, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Tatsuhiro Tanaka, Takayuki Nagase, Keiji Ikeda
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Patent number: 10421854Abstract: A preparation method of a rubber composition for a tire assures that good processability can be obtained even if a silane coupling agent having a mercapto group is blended. The preparation method of a rubber composition for a tire is characterized by initiating kneading of a rubber component and a specific polysulfide compound before kneading the rubber component and a silane coupling agent having a mercapto group.Type: GrantFiled: September 15, 2017Date of Patent: September 24, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Tatsuhiro Tanaka, Takayuki Nagase, Keiji Ikeda
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Patent number: 10414906Abstract: The present invention aims to provide pneumatic tires that can achieve both abrasion resistance and low heat build-up properties. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including an isoprene-based rubber and a high-cis polybutadiene rubber having a cis content of 90% by mass or more; one or more types of carbon black; and sulfur, at least one of the one or more types of carbon black being produced from a feedstock oil that has a BMCI value of 150 or less and an aliphatic hydrocarbon content of 30% by mass or more, the BMCI value being calculated from the average boiling point T (° C.) and the specific gravity D (60/60° F.) relative to water at 60° F. according to the equation below, BMCI=48,640/(T+273)+473.7D?456.8.Type: GrantFiled: September 30, 2015Date of Patent: September 17, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Ryota Kitago, Takayuki Nagase, Yuuki Kawana, Takayuki Hattori, Takao Wada, Soh Ishino, Yuhei Yamashiro, Masaki Oshimo, Masanobu Nakamura
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Patent number: 10360461Abstract: A travel control device for a vehicle is configured to execute a self-driving control based on a traveling state and traveling environment information of the vehicle. The travel control device includes a controller. The controller estimates execution of a right turn and a left turn from a traveling lane of the vehicle based on the traveling state and traveling environment information. When execution of either one of the right turn and the left turn from the traveling lane of the vehicle is estimated, the controller varies a traveling path from the traveling lane to a lane after the execution of the estimated turn according to the traveling state and traveling environment information to perform a right or left turn control of the vehicle.Type: GrantFiled: May 2, 2017Date of Patent: July 23, 2019Assignee: SUBARU CORPORATIONInventors: Takayuki Nagase, Eiichi Shiraishi
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Patent number: 10266174Abstract: A travel control device for a vehicle executes a self-driving control based on traveling environment information on which the vehicle travels and traveling information on the vehicle. In the device, a traveling environment information acquisition unit acquires the traveling environment information. A traveling information detection unit detects the traveling information. An unstable behavior detector detects an unstable behavior in one or both of a rolling direction and a yaw direction of the vehicle. A steering wheel holding state detector detects a state in which a driver holds a steering wheel. The first unstable behavior reducer reduces the detected unstable behavior by correcting a steering angle. A second unstable behavior reducer reduces the detected unstable behavior by selecting a predetermined wheel and applying a braking force to the wheel. A vehicle behavior controller freely operates the unstable behavior reducers according to detection results.Type: GrantFiled: April 26, 2017Date of Patent: April 23, 2019Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takayuki Nagase
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Patent number: 10106191Abstract: An electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction to return a steering wheel to a neutral position on the basis of a steering angle of a steering wheel, a turn/return determination unit configured to determine the turn and the return of the steering wheel, a gradually changing return command value calculation unit configured to calculate a gradually changing return command value, the gradually changing return command value gradually increasing, while the return of the steering wheel is determined by the turn/return determination unit, and a return command value calculation unit configured to calculate a return command value by adding the gradually changing return command value to the basic return command value. The electric motor is driven by adding the return command value to the assist command value.Type: GrantFiled: February 4, 2015Date of Patent: October 23, 2018Assignee: KYB CorporationInventors: Hiroyuki Gotou, Noboru Yoshida, Yuichiro Okamoto, Nobuyuki Kimura, Takayuki Nagase, Kazuma Yamazaki
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Patent number: 10029726Abstract: A electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction to return a steering wheel to a neutral position on the basis of a steering angle of the steering wheel, a return command value calculation unit configured to calculate a return command value by correcting the basic return command value by the first correction gain, and an opposite return command value calculation unit configured to calculate an opposite return command value in a direction not to return the steering wheel to the neutral position on the basis of an angular acceleration of an electric motor. A correction return command value is calculated on the basis of the return command value and the opposite return command value and the electric motor is driven by adding the correction return command value to the assist command value.Type: GrantFiled: February 4, 2015Date of Patent: July 24, 2018Assignee: KYB CorporationInventors: Hiroyuki Gotou, Hisazumi Ishikawa, Kazuhiro Sasaki, Yuichiro Okamoto, Nobuyuki Kimura, Takayuki Nagase, Kazuma Yamazaki
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Patent number: 9889884Abstract: A travel control apparatus for a vehicle detects a vehicle to be passed that is a target of passing and is in front of the vehicle equipped with the apparatus in the traveling lane thereof, detects a parallel traveling vehicle that is traveling in a lane that is adjacent to a lane to which the vehicle performs lane changing to pass the vehicle to be passed and is located on the opposite side of the lane which the vehicle to be passed is traveling, monitors the vehicle to be passed and the parallel traveling vehicle, and variably controls a passing maneuver with respect to the vehicle to be passed on the basis of a monitoring result.Type: GrantFiled: June 16, 2015Date of Patent: February 13, 2018Assignee: SUBARU CORPORATIONInventors: Koji Matsuno, Harunobu Horiguchi, Shiro Ezoe, Takayuki Nagase, Hajime Oyama, Yasushi Takaso, Masato Mizoguchi
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Patent number: 9809164Abstract: A travel control apparatus for a vehicle detects a vehicle to be passed that is an target of passing and is located in front of a vehicle equipped with the travel control apparatus in a traveling lane thereof on the basis of peripheral environment information and travel information, detects a following vehicle that is behind the vehicle in the traveling lane thereof as a following vehicle in the original lane on the basis of the peripheral environment information, monitors the vehicle to be passed and the following vehicle in the original lane, and variably controls a passing maneuver with respect to the vehicle to be passed on the basis of a monitoring result.Type: GrantFiled: June 15, 2015Date of Patent: November 7, 2017Assignee: SUBARU CORPORATIONInventors: Koji Matsuno, Harunobu Horiguchi, Shiro Ezoe, Takayuki Nagase, Hajime Oyama, Yasushi Takaso, Masato Mizoguchi
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Patent number: 9776641Abstract: A travel control apparatus for a vehicle includes: a travel environment information acquisition unit that acquires travel environment information on a travel environment where the vehicle travels; a travel information detector that detects travel information on the vehicle; and an overtaking controller that detects an overtaking target vehicle ahead of the vehicle in an identical travel lane on the basis of the travel environment information and the travel information, and overtakes the overtaking target vehicle using automatic driving control.Type: GrantFiled: October 26, 2015Date of Patent: October 3, 2017Assignee: SUBARU CORPORATIONInventors: Koji Matsuno, Harunobu Horiguchi, Hajime Oyama, Yasushi Takaso, Masato Mizoguchi, Takayuki Nagase, Eiichi Shiraishi, Shiro Ezoe, Satoru Akiyama
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Patent number: 9764640Abstract: In a travel control apparatus for a vehicle, a travel environment information acquisition unit acquires travel environment information, and a travel information detector detects travel information relating to the vehicle. The apparatus executes automatic driving control based on such information pieces. A vehicle peripheral object detector detects an object around the vehicle, separately to the travel environment information acquisition unit. An environment information acquisition failure detector detects an acquisition failure in the travel environment information acquisition unit.Type: GrantFiled: October 30, 2015Date of Patent: September 19, 2017Assignee: SUBARU CORPORATIONInventors: Koji Matsuno, Hajime Oyama, Yasushi Takaso, Masato Mizoguchi, Harunobu Horiguchi, Takayuki Nagase, Eiichi Shiraishi, Shiro Ezoe, Satoru Akiyama
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Patent number: 9658120Abstract: A capacitance-type sensor sheet used for measuring an amount of stretch deformation and strain and/or distribution of stretch deformation and strain may include a dielectric layer made of an elastomer, an obverse-side electrode layer laminated on the obverse surface of the dielectric layer, and a reverse-side electrode layer laminated on the reverse surface of the dielectric layer. The obverse-side electrode layer and the reverse-side electrode layer may each contain carbon nanotubes and the average thickness of the each of obverse-side electrode layer and the reverse-side electrode layer may be 0.1 ?m or more and 10 ?m or less. The obverse-side electrode layer and the reverse-side electrode layer may be formed by applying a coating solution containing carbon nanotubes. The obverse-side electrode layer and the reverse-side electrode layer may each include a plurality of band-shaped bodies.Type: GrantFiled: July 2, 2013Date of Patent: May 23, 2017Assignee: Bando Chemical Industries, Ltd.Inventors: Hideo Otaka, Hideyuki Kato, Hideki Norisada, Takayuki Nagase
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Patent number: 9637107Abstract: In a travel control apparatus for a vehicle, a travel environment information acquisition unit acquires travel environment information on a travel environment of the vehicle. A travel information detector detects travel information on the vehicle in order to execute automatic driving control based on such information pieces. A lateral force generator generates lateral force to be applied to the vehicle during the automatic driving control. A torsion bar is interposed on a torque transmission path of a steering system. A steering wheel angle detector detects a steering wheel angle. A lateral force detector detects the lateral force acting on the vehicle. An intervening steering operation determination unit determines that a driver has performed an intervening steering operation when a characteristic of the detected steering wheel angle and lateral force differs from a reference characteristic that varies univocally when the steering wheel is in a no load condition.Type: GrantFiled: November 6, 2015Date of Patent: May 2, 2017Assignee: FUJI JUKOGYO KABUSHIKI KAISHAInventors: Koji Matsuno, Satoru Akiyama, Takayuki Nagase, Eiichi Shiraishi, Shiro Ezoe, Hajime Oyama, Yasushi Takaso, Masato Mizoguchi, Harunobu Horiguchi