Patents by Inventor Tatsuya Yamasaki

Tatsuya Yamasaki 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: 11677253
    Abstract: A monitoring device includes: an acquisition unit configured to acquire information regarding whether a learning model is in a first mode or in a second mode, the learning model configured to detect a state of an energy storage device; and a change unit configured to change an operation of a balancer circuit from a predetermined state in a case where the learning model is in the first mode, the balancer circuit configured to balance a voltage of the energy storage device.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: June 13, 2023
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Tatsuya Inoue, Kayo Yamasaki, Yuya Kihira, Hitoshi Matsushima, Keita Nakai
  • Patent number: 11648917
    Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) is provided to a wheel (Wa) of a vehicle (VB), and includes an electric brake (16a) provided with a motor (80), a driver (60) that drives the motor (80), and a first control device (10) provided with a master controller (30) and a first sub-controller (40) connected to each other. The electric brake (16a) is controllable by both the master controller (30) and the first sub-controller (40).
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: May 16, 2023
    Assignees: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION, HITACHI ASTEMO, LTD., HITACHI ASTEMO UEDA CO., LTD.
    Inventors: Hiromasa Satoh, Toshihiro Obika, Yusuke Koga, Hiromitsu Toyota, Haruo Kotera, Tatsuya Yamasaki, Yui Masuda
  • Patent number: 11531252
    Abstract: A vehicle comprises: an imaging unit configured to image an occupant from front of the occupant in a vehicle longitudinal direction in a vehicle interior; and a light emitting unit including a first light emitting portion and a second light emitting portion configured to irradiate an imaging range of the imaging unit. An optical axis of irradiation light from the first light emitting portion and an optical axis of irradiation light from the second light emitting portion intersect with each other between the light emitting unit and the occupant in plan view.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: December 20, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaki Suto, Tomoya Hagihara, Tatsuya Yamasaki
  • Publication number: 20220252962
    Abstract: A vehicle comprises: an imaging unit configured to image an occupant from front of the occupant in a vehicle longitudinal direction in a vehicle interior; and a light emitting unit including a first light emitting portion and a second light emitting portion configured to irradiate an imaging range of the imaging unit. An optical axis of irradiation light from the first light emitting portion and an optical axis of irradiation light from the second light emitting portion intersect with each other between the light emitting unit and the occupant in plan view.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 11, 2022
    Inventors: Masaki SUTO, Tomoya HAGIHARA, Tatsuya YAMASAKI
  • Patent number: 11370401
    Abstract: A highly reliable vehicle brake system including an electric brake is provided. A vehicle brake system (1) includes electric brakes (16a to 16d) provided with motors (80 to 85), drivers (60 to 65) that drive the motors (80 to 85), and a control device that controls the drivers (60 to 65). The electric brake (16a) includes two motors (80 and 81), and the control device includes separate drivers (60 and 61) respectively corresponding to the two motors (80 and 81). The control device includes a first master controller (30) and a first sub-controller (40). The first master controller (30) controls the driver (61) corresponding to the motor (81), and the first sub-controller (40) controls the driver (60) corresponding to the motor 80.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 28, 2022
    Assignees: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION, HITACHI ASTEMO, LTD., HITACHI ASTEMO UEDA CO., LTD.
    Inventors: Hiromasa Satoh, Toshihiro Obika, Yusuke Koga, Hiromitsu Toyota, Haruo Kotera, Tatsuya Yamasaki, Yui Masuda
  • Patent number: 11118985
    Abstract: A load sensor to be used in an electromechanical brake system includes a flange member capable of deflecting when receiving, at a load receiving portion, a load from the axially front side; a support member capable of supporting the flange member from the axially rear side, at a support portion displaced from the load receiving portion in a radial direction orthogonal to the axial direction; and a displacement detecting mechanism configured to detect the amount of relative movement between the flange and support members. A variable detection sensitivity mechanism enables the relative movement amount with respect to the change of the load applied to the flange member to be larger in a low load range in which the load is equal to or lower than a predetermined load value than in a high load range in which the load is higher than the predetermined load value.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: September 14, 2021
    Assignee: NTN CORPORATION
    Inventors: Tatsuya Yamasaki, Yui Masuda
  • Patent number: 11061175
    Abstract: A polarizing film, comprising a polarizer, and a transparent protective film laminated on/over at least one surface of the polarizer to interpose an adhesive layer between the surface and the transparent protective film, and the polarizing film comprising, on/over the adhesion surface of the polarizer, an adhesion-improving layer interposed between the polarizer and the adhesive layer. The adhesion-improving layer preferably comprises a compound represented by the following general formula (1): wherein X is a functional group containing a reactive group, and R1 and R2 each independently represent a hydrogen atom, or an aliphatic hydrocarbon group, aryl group or heterocyclic group that may have a substituent, and the compound represented by the general formula (1) is interposed between the polarizer and the adhesive layer.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: July 13, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Ryo Kanno, Takeshi Saito, Tatsuya Yamasaki, Keisuke Kimura
  • Patent number: 11046719
    Abstract: An organic metal compound-containing composition, comprising: at least one organic metal compound (A) selected from the group consisting of metal alkoxides and metal chelates, and a polymerizable compound (B) having a polymerizable functional group and a carboxyl group.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 29, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Ryo Kanno, Tatsuya Yamasaki, Yuto Saruhashi, Ryuta Tomoyose, Takeshi Saito, Tetsuro Ikeda
  • Patent number: 10899327
    Abstract: Provided is an electric brake device capable of adjusting a clearance without making a driver feel discomfort, in a vehicle equipped with the electric brake device. A control device (2) of this electric brake device (DB) includes: a brake operation amount detector (24) to detect an operation amount to a brake operation member (27) of the vehicle; and an operation record flag storage unit (19) to store an operation record flag indicating a record of a latest operation performed by the driver to the brake operation member (27), on the basis of the operation amount detected by the brake operation amount detector (24). The control device (2) further includes a target clearance determination unit (17) to determine a target clearance with reference to the operation record flag stored in the operation record flag storage unit (19).
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: January 26, 2021
    Assignee: NTN CORPORATION
    Inventors: Akiyoshi Nishikawa, Tatsuya Yamasaki
  • Publication number: 20210018666
    Abstract: A polarizing film has a transparent protective film provided on at least one side of a polarizer through an adhesive layer. The transparent protective film is a cellulose-based resin film. The adhesive layer is formed by a cured layer obtained by irradiating an active energy ray-curable adhesive composition with active energy rays. The composition contains 0.0% by weight to 4.0% by weight of an active energy ray-curable compound (A) having an SP value of 29.0 (MJ/m3)1/2 to 32.0 (MJ/m3)1/2, 5.0% by weight to 98.0% by weight of an active energy ray-curable compound (B) having the SP value of 18.0 (MJ/m3)1/2 to 21.0 (MJ/m3)1/2 (exclusive of 21.0 (MJ/m3)1/2), and 5.0% by weight to 98.0% by weight of an active energy ray-curable compound (C) having the SP value of 21.0 (MJ/m3)1/2 to 26.0 (MJ/m3)1/2 on a basis of 100% by weight of a total amount of the composition.
    Type: Application
    Filed: February 19, 2019
    Publication date: January 21, 2021
    Applicant: Nitto Denko Corporation
    Inventors: Ryo KANNO, Masayuki OKAMOTO, Noritsugu DAIGAKU, Tatsuya YAMASAKI
  • Publication number: 20210011335
    Abstract: An active energy ray-curable adhesive composition containing active energy ray-curable compounds (A), (B), and (C) as curable components, wherein the active energy ray-curable adhesive composition contains 0.0% by weight to 4.0% by weight of an active energy ray-curable compound (A) having an SP value of 29.0 (MJ/m3)1/2 to 32.0 (MJ/m3)1/2, 5.0% by weight to 98.0% by weight of an active energy ray-curable compound (B) having the SP value of 18.0 (MJ/m3)1/2 to 21.0 (MJ/m3)1/2 (exclusive of 21.0 (MJ/m3)1/2), and 5.0% by weight to 98.0% by weight of an active energy ray-curable compound (C) having the SP value of 21.0 (MJ/m3)1/2 to 26.0 (MJ/m3)1/2 on a basis of 100% by weight of a total amount of the composition.
    Type: Application
    Filed: February 19, 2019
    Publication date: January 14, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Tatsuya Yamasaki, Noritsugu Daigaku, Ryo Kanno, Takeshi Saito, Keisuke Kimura
  • Patent number: 10808781
    Abstract: In an electric linear motion actuator, while an axially forward load is not being applied to an object by an outer ring member, a preload is applied to a frictionally coupling surface by an elastic member, and, when the axially forward load is applied to the object by the outer ring member, an axial load applied to the frictionally coupling surface decreases by an amount equal to the axially rearward reaction force which the outer ring member receives from the object. The electric linear motion actuator includes a load sensor for supporting, through planetary rollers and a carrier, the axially rearward reaction force. The load sensor is arranged such that any change in magnitude of an axially forward load applied through a snap ring will not affect the value of the axially rearward reaction force detected by the load sensor.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: October 20, 2020
    Assignee: NTN CORPORATION
    Inventor: Tatsuya Yamasaki
  • Patent number: 10696877
    Abstract: A curable resin composition for forming an adhesive layer on at least one surface of a substrate (C), the curable resin composition comprising: a compound (A) represented by formula (1): wherein X represents a functional group containing a reactive group, and R1 and R2 each independently represent a hydrogen atom or an optionally substituted, aliphatic hydrocarbon, aryl, or heterocyclic group; and an adhesion aid compound (B), the curable resin composition satisfying formula (X): ?10?HSP (A)?HSP (B)?10 and formula (Y): ?10?HSP (C)?HSP (B)?10, wherein HSP (A) is an HSP value of the compound (A), HSP (B) is an HSP value of the adhesion aid compound (B), and HSP (C) is an HSP value of the substrate (C).
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: June 30, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kayo Shimokawa, Ryoko Asai, Taiki Shimokuri, Yoshiaki Ito, Tatsuya Yamasaki
  • Publication number: 20200039485
    Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) includes a first control device (10) and a second control device (11) that respectively include a master controller (30), a first sub-controller (40), and a second sub-controller (41) that are connected to one another. Each of the master controller (30), the first sub-controller (40), and the second sub-controller (41) includes a braking force calculation unit that calculates braking force of electric brakes (16a to 16d), and a determination unit that compares braking force calculation results of the controllers to determine whether itself is normal. The determination unit includes an output block section that blocks, when the determination unit determines that any one of the controllers is not normal, an output of the controller that is determined to be not normal.
    Type: Application
    Filed: March 29, 2018
    Publication date: February 6, 2020
    Applicants: NISSIN KOGYO CO., LTD., VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD., MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION
    Inventors: Hiromasa SATOH, Toshihiro OBIKA, Yusuke KOGA, Yasushi AOKI, Hiromitsu TOYOTA, Haruo KOTERA, Tatsuya YAMASAKI, Yui MASUDA
  • Publication number: 20200039484
    Abstract: A highly reliable vehicle brake system including an electric brake is provided. A vehicle brake system (1) includes electric brakes (16a to 16d) provided with motors (80 to 85), drivers (60 to 65) that drive the motors (80 to 85), and a control device that controls the drivers (60 to 65). The electric brake (16a) includes two motors (80 and 81), and the control device includes separate drivers (60 and 61) respectively corresponding to the two motors (80 and 81). The control device includes a first master controller (30) and a first sub-controller (40). The first master controller (30) controls the driver (61) corresponding to the motor (81), and the first sub-controller (40) controls the driver (60) corresponding to the motor 80.
    Type: Application
    Filed: March 29, 2018
    Publication date: February 6, 2020
    Applicants: NISSIN KOGYO CO., LTD., VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD., MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION
    Inventors: Hiromasa SATOH, Toshihiro OBIKA, Yusuke KOGA, Hiromitsu TOYOTA, Haruo KOTERA, Tatsuya YAMASAKI, Yui MASUDA
  • Publication number: 20200031323
    Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) includes electric brakes (16a to 16d) that include at least one unit of motors (80 and 81), and first and second control devices (10 and 11) that include a master controller (30) and a first sub-controller (40) that are connected to one another. The master controller (30) includes a driver control unit (301) that can control drivers (61 and 63), and a braking force calculation unit that calculates braking force of the electric brakes (16a to 16d). The first sub-controller (40) includes a driver control unit that controls a driver (60), and a braking force calculation unit that calculates braking force of the electric brakes (16a to 16d). The master controller (30) and the first sub-controller (40) include a determination unit that compares braking force calculation results of other controllers to determine braking force.
    Type: Application
    Filed: March 29, 2018
    Publication date: January 30, 2020
    Applicants: NISSIN KOGYO CO., LTD., VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD., MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION
    Inventors: Hiromasa SATOH, Toshihiro OBIKA, Yusuke KOGA, Hiromitsu TOYOTA, Haruo KOTERA, Tatsuya YAMASAKI, Yui MASUDA
  • Publication number: 20200031322
    Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) is provided to a wheel (Wa) of a vehicle (VB), and includes an electric brake (16a) provided with a motor (80), a driver (60) that drives the motor (80), and a first control device (10) provided with a master controller (30) and a first sub-controller (40) connected to each other. The electric brake (16a) is controllable by both the master controller (30) and the first sub-controller (40).
    Type: Application
    Filed: March 29, 2018
    Publication date: January 30, 2020
    Applicants: NISSIN KOGYO CO., LTD., VEONEER NISSIN BRAKE SYSTEMS JAPAN CO., LTD., MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION
    Inventors: Hiromasa SATOH, Toshihiro OBIKA, Yusuke KOGA, Hiromitsu TOYOTA, Haruo KOTERA, Tatsuya YAMASAKI, Yui MASUDA
  • Patent number: 10508722
    Abstract: An electric linear motion actuator is provided which includes an outer ring member, a rotary shaft, planetary rollers, and a carrier including a disk, and in which the outer ring member is formed with a helical rib, each of the planetary rollers being formed with circumferential grooves in which the helical rib is engaged. When the rotary shaft rotates, the planetary rollers rotate about their axes while revolving around the rotary shaft so that the outer ring member axially linearly moves. The actuator includes thrust roller and retainer assemblies each mounted between one of the planetary roller and the disk of the carrier, and each guided by a raceway, i.e., an end surface of the corresponding planetary roller. The actuator includes a common raceway disk common to all of the thrust roller and retainer assemblies, and mounted between the thrust roller and retainer assemblies and the disk of the carrier.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: December 17, 2019
    Assignee: NTN CORPORATION
    Inventors: Tatsuya Yamasaki, Masaaki Eguchi
  • Patent number: 10479342
    Abstract: The electric brake device includes an electric motor, a friction member operator, a friction member, a brake rotor, and a control device. A braking force estimator provided in the control device includes: a direct estimator configured to convert output of a braking force sensor which detects a load or displacement corresponding amount, to a braking force; and an indirect estimator configured to estimate the braking force on the basis of information other than output of the braking force sensor. A range in which the braking force is estimated by the direct estimator is a specified low-braking-force range, and in a range beyond this range, estimation of the braking force is performed by the indirect estimator.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 19, 2019
    Assignee: NTN CORPORATION
    Inventors: Yui Masuda, Tatsuya Yamasaki
  • Publication number: 20190339139
    Abstract: A load sensor used in an electromechanical brake system is provided. The load sensor includes a flange member capable of deflecting when receiving, at a load receiving portion, a load from the axially front side; a support member capable of supporting the flange member from the axially rear side, at a support portion displaced from the load receiving portion in a radial direction orthogonal to the axial direction; a displacement detecting mechanism configured to detect the amount of relative movement between the flange and support members; and a variable detection sensitivity mechanism enabling the relative movement amount with respect to the change of the load applied to the flange member to be larger in a low load range in which the load is equal to or lower than a predetermined load value than in a high load range in which the load is higher than the predetermined load value.
    Type: Application
    Filed: December 26, 2017
    Publication date: November 7, 2019
    Applicant: NTN CORPORATION
    Inventors: Tatsuya YAMASAKI, Yui MASUDA