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).

  • Patent number: 10759925
    Abstract: 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: Grant
    Filed: September 15, 2017
    Date of Patent: September 1, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuhiro Tanaka, Takayuki Nagase, Keiji Ikeda
  • Publication number: 20200238768
    Abstract: 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: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masako NAKATANI, Takahiro KAWACHI, Ayuko YAMADA, Takuya HORIGUCHI, Masataka HIRO, Takayuki NAGASE, Hiroshi ITO, Fumiya KATO, Subaru TOYA
  • Patent number: 10723865
    Abstract: 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: Grant
    Filed: July 24, 2017
    Date of Patent: July 28, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takayuki Nagase
  • Patent number: 10619033
    Abstract: 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: Grant
    Filed: August 7, 2018
    Date of Patent: April 14, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Nanaho Kami, Takayuki Nagase
  • Patent number: 10604180
    Abstract: 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: Grant
    Filed: May 1, 2018
    Date of Patent: March 31, 2020
    Assignee: SUBARU CORPORATION
    Inventors: Eiichi Shiraishi, Takayuki Nagase
  • Publication number: 20200087458
    Abstract: The present invention provides a polyamide composition containing 50 to 99 parts by mass of an aliphatic polyamide (1A) formed from a diamine and a dicarboxylic acid, and 1 to 50 parts by mass of a semi-aromatic polyamide (1B) containing a dicarboxylic acid unit that includes at least 75 mol % of isophthalic acid and a diamine unit that includes at least 50 mol % of a diamine of 4 to 10 carbon atoms, wherein the tan ? peak temperature of the polyamide composition is at least 90° C., and the weight average molecular weight Mw of the polyamide composition satisfies 15,000?Mw?35,000. The invention also provides a molded article or the like formed using the polyamide composition.
    Type: Application
    Filed: March 30, 2018
    Publication date: March 19, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Shinji IEDA, Koichi NAGASE, Hisho YAMADA, Jun MIKAMI, Takayuki WAKITA, Yoshifumi ARAKI, Kimiaki KAWATANI, Tomoyo OKUMURA, Yoshikimi KONDO, Kazunori TERADA
  • Publication number: 20190300013
    Abstract: 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: Application
    Filed: January 7, 2019
    Publication date: October 3, 2019
    Inventors: Eiichi SHIRAISHI, Takayuki NAGASE
  • Publication number: 20190300014
    Abstract: 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: Application
    Filed: January 7, 2019
    Publication date: October 3, 2019
    Inventors: Takayuki NAGASE, Eiichi SHIRAISHI
  • Publication number: 20190299722
    Abstract: 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: Application
    Filed: November 27, 2017
    Publication date: October 3, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masako NAKATANI, Takahiro KAWACHI, Ayuko YAMADA, Takuya HORIGUCHI, Masataka HIRO, Takayuki NAGASE, Hiroshi ITO, Fumiya KATO, Subaru TOYA
  • Patent number: 10421854
    Abstract: 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: Grant
    Filed: September 15, 2017
    Date of Patent: September 24, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuhiro Tanaka, Takayuki Nagase, Keiji Ikeda
  • Patent number: 10421842
    Abstract: 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: Grant
    Filed: September 15, 2017
    Date of Patent: September 24, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuhiro Tanaka, Takayuki Nagase, Keiji Ikeda
  • Patent number: 10414906
    Abstract: 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: Grant
    Filed: September 30, 2015
    Date of Patent: September 17, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryota Kitago, Takayuki Nagase, Yuuki Kawana, Takayuki Hattori, Takao Wada, Soh Ishino, Yuhei Yamashiro, Masaki Oshimo, Masanobu Nakamura
  • Patent number: 10360461
    Abstract: 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: Grant
    Filed: May 2, 2017
    Date of Patent: July 23, 2019
    Assignee: SUBARU CORPORATION
    Inventors: Takayuki Nagase, Eiichi Shiraishi
  • Patent number: 10266174
    Abstract: 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: Grant
    Filed: April 26, 2017
    Date of Patent: April 23, 2019
    Assignee: SUBARU CORPORATION
    Inventors: Eiichi Shiraishi, Takayuki Nagase
  • Publication number: 20190048172
    Abstract: 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: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Nanaho KAMI, Takayuki NAGASE
  • Publication number: 20190031236
    Abstract: 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: Application
    Filed: May 1, 2018
    Publication date: January 31, 2019
    Inventors: Eiichi SHIRAISHI, Takayuki NAGASE
  • Patent number: 10106191
    Abstract: 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: Grant
    Filed: February 4, 2015
    Date of Patent: October 23, 2018
    Assignee: KYB Corporation
    Inventors: Hiroyuki Gotou, Noboru Yoshida, Yuichiro Okamoto, Nobuyuki Kimura, Takayuki Nagase, Kazuma Yamazaki
  • Patent number: 10029726
    Abstract: 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: Grant
    Filed: February 4, 2015
    Date of Patent: July 24, 2018
    Assignee: KYB Corporation
    Inventors: Hiroyuki Gotou, Hisazumi Ishikawa, Kazuhiro Sasaki, Yuichiro Okamoto, Nobuyuki Kimura, Takayuki Nagase, Kazuma Yamazaki
  • Publication number: 20180186973
    Abstract: 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: Application
    Filed: September 30, 2015
    Publication date: July 5, 2018
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryota KITAGO, Takayuki NAGASE, Yuuki KAWANA, Takayuki HATTORI, Takao WADA, Soh ISHINO, Yuhei YAMASHIRO, Masaki OSHIMO, Masanobu NAKAMURA
  • Publication number: 20180094125
    Abstract: 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: Application
    Filed: September 15, 2017
    Publication date: April 5, 2018
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuhiro TANAKA, Takayuki NAGASE, Keiji IKEDA