Patents by Inventor Kazuya NAGASAKA

Kazuya NAGASAKA 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: 11990792
    Abstract: A stator includes a main yoke having a cylindrical shape with a bottom, an auxiliary yoke having a band shape arranged on an outer or inner circumferential wall surface of this main yoke, and a field magnet arranged inside the main yoke. The auxiliary yoke is arranged along a circumferential direction on the outer or inner circumferential wall surface of the main yoke. One end of the auxiliary yoke has at least one protrusion, and another end of the auxiliary yoke has at least one recess facing and engaging in a circumferential direction with the protrusion either on the inner or outer circumferential wall surface of the main yoke.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: May 21, 2024
    Assignee: DENSO CORPORATION
    Inventors: Tsuyoshi Matsuda, Kazuhiro Miura, Yuuya Asai, Takashi Nagaya, Takumi Okano, Isoshi Soga, Kazuya Nagasaka
  • Patent number: 11987318
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, a lean brake mechanism, a steering handle, a left grip, a throttle grip, a lean brake manipulator. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean brake mechanism brakes the leaning operation by the lean mechanism while the leaning vehicle is traveling. The lean brake manipulator is positioned at a first side in the vehicle width direction, changes a position integrally with the left grip, and for performing an operation of actuating the lean brake mechanism to brake.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: May 21, 2024
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Takeshi Nakajima, Hiroshi Ishii, Taro Iwamoto, Kazuya Nagasaka, Taichi Inaba
  • Patent number: 11975795
    Abstract: A leaning vehicle includes a vehicle body, a plurality of wheels, a lean mechanism, and a lean stopper mechanism. The wheels include a left front wheel and a right front wheel. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean stopper mechanism prevents a lean angle from exceeding a limit angle. in a plan view, an area bounded by lines connecting contact positions of ground and tires of the plurality of wheels is referred to as a grounding surface inner area, and a gravity center is positioned in the grounding surface inner area in a state where the lean angle reaches the limit angle.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: May 7, 2024
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Takeshi Nakajima, Hiroshi Ishii, Taro Iwamoto, Kazuya Nagasaka, Taichi Inaba
  • Patent number: 11932345
    Abstract: A leaning vehicle includes a vehicle body, a left wheel, a right wheel, left and right bearings, left and right axle, left arm, right arm, and lean mechanism. The left arm supports the left wheel from inside in a vehicle width direction. The right arm supports the right wheel from inside in the vehicle width direction. The lean mechanism causes the left wheel and the right wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The single bearing is inserted into a hub hole of the left wheel. The single bearing is inserted into a hub hole of the right wheel.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 19, 2024
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Takeshi Nakajima, Hiroshi Ishii, Taro Iwamoto, Kazuya Nagasaka, Taichi Inaba
  • Patent number: 11926388
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, and a lean brake mechanism. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean brake mechanism brakes a leaning operation of the lean mechanism. The lean brake mechanism includes a brake caliper and a brake disc. The brake caliper is attached to the lean mechanism and has a brake pad. The brake disc is attached to the lower arm of the upper arm and the lower arm that is farther from the brake pad in the front view, has a contact portion that generates braking force by being pressed by the brake pad.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 12, 2024
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Taro Iwamoto, Takeshi Nakajima, Hiroshi Ishii, Kazuya Nagasaka, Taichi Inaba
  • Patent number: 11919604
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, and a lean brake mechanism. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean brake mechanism brakes a leaning operation of the lean mechanism. The lean brake mechanism includes a brake disc and brake pads. The brake disc is attached to an upper arm or a lower arm. The brake pads, which are attached such that their position relative to the brake disc changes in the leaning operation, produce a frictional force against the brake disc in the leaning operation.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 5, 2024
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Takeshi Nakajima, Hiroshi Ishii, Taro Iwamoto, Kazuya Nagasaka, Taichi Inaba
  • Patent number: 11873057
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, and a lean brake mechanism. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean brake mechanism brakes a leaning operation of the lean mechanism. The lean brake mechanism includes a brake disc and brake pads. The brake disc is attached to an upper arm or a lower arm. The brake pads, which are attached such that their position relative to the brake disc changes in the leaning operation, produce a frictional force against the brake disc in the leaning operation.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 16, 2024
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Takeshi Nakajima, Hiroshi Ishii, Taro Iwamoto, Kazuya Nagasaka, Taichi Inaba
  • Publication number: 20230213937
    Abstract: A utility vehicle includes: a travel structure including a front wheel, a rear wheel, a steering structure mounted to the front wheel, and a drive source that drives the front wheel and/or the rear wheel; circuitry that controls the travel structure to effect autonomous travel without manned operation in a given travel area; a route setter that sets a travel route for the autonomous travel; a vehicle location detector that detects a location of the utility vehicle; and a target detector that detects a monitoring target in the travel area. In case that the monitoring target is detected at a location during the autonomous travel, the circuitry stores the location of the monitoring target as history information. The route setter sets a reference point at the location where the monitoring target was detected and sets the travel route based on the reference point.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 6, 2023
    Inventors: Hiroshi ISHII, Taro IWAMOTO, Takeshi NAKAJIMA, Kazuya NAGASAKA, Atsushi SANO, Kazuhiro ICHIKAWA
  • Publication number: 20230202451
    Abstract: A utility vehicle includes: a travel structure including a front wheel, a rear wheel, a steering structure mounted to the front wheel, and a drive source that drives the front wheel and/or the rear wheel; circuitry that controls the travel structure to effect autonomous travel without manned operation in a given travel area; and a vehicle location detector that detects a location of the utility vehicle. During the autonomous travel, the circuitry determines, based on road condition data where the travel area is divided into regions with different predetermined road condition levels, to which of the road condition levels a road condition of a region ahead of the location of the utility vehicle in a travel direction belongs, and the circuitry controls the travel structure such that a given travel parameter is within a corresponding one of permissible ranges predetermined respectively in association with the road condition levels.
    Type: Application
    Filed: May 28, 2020
    Publication date: June 29, 2023
    Inventors: Hiroshi ISHII, Taro IWAMOTO, Takeshi NAKAJIMA, Kazuya NAGASAKA, Atsushi SANO, Kazuhiro ICHIKAWA
  • Publication number: 20230166750
    Abstract: A utility vehicle includes: a travel structure including a front wheel, a rear wheel, a steering structure mounted to the front wheel, and a drive source that drives the front wheel and/or the rear wheel; at least one operator used to operate the travel structure; circuitry that controls the travel structure; and a mode switcher that switches the utility vehicle between a manned operation mode in which the utility vehicle travels in response to operations on the operator and an autonomous travel mode in which the circuitry allows the utility vehicle to autonomously travel on a given travel route without any operations on the operator.
    Type: Application
    Filed: May 28, 2020
    Publication date: June 1, 2023
    Inventors: Hiroshi ISHII, Taro IWAMOTO, Takeshi NAKAJIMA, Kazuya NAGASAKA, Atsushi SANO, Kazuhiro ICHIKAWA
  • Publication number: 20230117152
    Abstract: A control requirement determiner includes: a storage that stores at least one piece of location information and at least one piece of behavior information as past data in which the location information and the behavior information are associated with each other, the location information indicating a geographic location, the behavior information being related to a behavior exhibited by a vehicle body of a vehicle at the location indicated by the location information when the vehicle traveled in the past; and processing circuitry that determines, based on the behavior information associated with the location information of the past data, a control requirement to be imposed on a control target of a rough terrain vehicle at the location indicated by the location information of the past data during travel of the rough terrain vehicle.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 20, 2023
    Inventors: Takenori Terada, Atsushi Sano, Kazuya Nagasaka, Taichi Inaba
  • Publication number: 20230057719
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, a lean brake mechanism, a steering handle, a left grip, a throttle grip, a lean brake manipulator. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean brake mechanism brakes the leaning operation by the lean mechanism while the leaning vehicle is traveling. The lean brake manipulator is positioned at a first side in the vehicle width direction, changes a position integrally with the left grip, and for performing an operation of actuating the lean brake mechanism to brake.
    Type: Application
    Filed: December 9, 2020
    Publication date: February 23, 2023
    Inventors: Takeshi NAKAJIMA, Hiroshi ISHII, Taro IWAMOTO, Kazuya NAGASAKA, Taichi INABA
  • Publication number: 20230058088
    Abstract: A leaning vehicle includes a vehicle body, a left wheel, a right wheel, left and right bearings, left and right axle, left arm, right arm, and lean mechanism. The left arm supports the left wheel from inside in a vehicle width direction. The right arm supports the right wheel from inside in the vehicle width direction. The lean mechanism causes the left wheel and the right wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The single bearing is inserted into a hub hole of the left wheel. The single bearing is inserted into a hub hole of the right wheel.
    Type: Application
    Filed: December 9, 2020
    Publication date: February 23, 2023
    Inventors: Takeshi NAKAJIMA, Hiroshi ISHII, Taro IWAMOTO, Kazuya NAGASAKA, Taichi INABA
  • Publication number: 20230037344
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, and a suspension. The left front wheel is positioned on the first side (left side) in the vehicle width direction. The right front wheel is positioned on the second side (right side) opposite to the first side in the vehicle width direction. The lean mechanism connects the left front wheel and the right front wheel and vertically vibrates integrally with both of the left front wheel and the right front wheel. The suspension is positioned so as to overlap the center of the vehicle in the vehicle width direction, connects the lean mechanism to the vehicle body, and reduces vibration transmitted from a road surface to the vehicle body via the left front wheel and the right front wheel.
    Type: Application
    Filed: December 9, 2020
    Publication date: February 9, 2023
    Inventors: Takeshi NAKAJIMA, Hiroshi ISHII, Taro IWAMOTO, Kazuya NAGASAKA, Taichi INABA
  • Publication number: 20230030243
    Abstract: A leaning vehicle includes a vehicle body, a plurality of wheels, a lean mechanism, and a lean stopper mechanism. The wheels include a left front wheel and a right front wheel. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean stopper mechanism prevents a lean angle from exceeding a limit angle. in a plan view, an area bounded by lines connecting contact positions of ground and tires of the plurality of wheels is referred to as a grounding surface inner area, and a gravity center is positioned in the grounding surface inner area in a state where the lean angle reaches the limit angle.
    Type: Application
    Filed: December 9, 2020
    Publication date: February 2, 2023
    Inventors: Takeshi NAKAJIMA, Hiroshi ISHII, Taro IWAMOTO, Kazuya NAGASAKA, Taichi INABA
  • Publication number: 20230027237
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a steering rod, suspension, a first steering part, second steering part, a pantograph mechanism. The first steering part is disposed a vehicle body side respect to the suspension and transmits rotational a steering force by a driver. The second steering part is disposed the front wheel side respect to the suspension and transmits the rotational steering force to the steering rod. The pantograph mechanism is disposed separately from the suspension, transmits the rotational steering force from the first steering part to the second steering part, and maintains state of transmission of the rotational steering force by deforming in accordance with changes in relative positions of the first steering part and the second steering part.
    Type: Application
    Filed: December 9, 2020
    Publication date: January 26, 2023
    Inventors: Takeshi NAKAJIMA, Hiroshi ISHII, Taro IWAMOTO, Kazuya NAGASAKA, Taichi INABA
  • Publication number: 20230015938
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, and a lean brake mechanism. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean brake mechanism brakes a leaning operation of the lean mechanism. The lean brake mechanism includes a brake caliper and a brake disc. The brake caliper is attached to the lean mechanism and has a brake pad. The brake disc is attached to the lower arm of the upper arm and the lower arm that is farther from the brake pad in the front view, has a contact portion that generates braking force by being pressed by the brake pad.
    Type: Application
    Filed: June 5, 2020
    Publication date: January 19, 2023
    Inventors: Taro IWAMOTO, Takeshi NAKAJIMA, Hiroshi ISHII, Kazuya NAGASAKA, Taichi INABA
  • Publication number: 20230017574
    Abstract: A leaning vehicle includes a vehicle body, a left front wheel, a right front wheel, a lean mechanism, and a lean brake mechanism. The lean mechanism causes the left front wheel and the right front wheel to lean about a front-rear direction as a rotation center when the vehicle body leans about the front-rear direction as a rotation center. The lean brake mechanism brakes a leaning operation of the lean mechanism. The lean brake mechanism includes a brake disc and brake pads. The brake disc is attached to an upper arm or a lower arm. The brake pads, which are attached such that their position relative to the brake disc changes in the leaning operation, produce a frictional force against the brake disc in the leaning operation.
    Type: Application
    Filed: December 9, 2020
    Publication date: January 19, 2023
    Inventors: Takeshi NAKAJIMA, Hiroshi ISHII, Taro IWAMOTO, Kazuya NAGASAKA, Taichi INABA
  • Patent number: 11511821
    Abstract: A leaning vehicle includes a base member, an upper arm, a lower arm, a first support member, a second support member, a first wheel, a second wheel, and a steering operation member. The upper arm, the lower arm, the first support member, the second support member constitute a parallel link mechanism. The first wheel is movable integrally with the first support member in a turning direction of the base member. The second wheel is movable integrally with the second support member in the turning direction of the base member. According to turning of the base member by operating the steering operation member, all of the upper arm, the lower arm, the first support member, the second support member, the first wheel, and the second wheel turn around a turning center of the base member.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: November 29, 2022
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Hiroshi Ishii, Taro Iwamoto, Takeshi Nakajima, Kazuya Nagasaka
  • Patent number: 11400998
    Abstract: A traveling vehicle includes a vehicle body, a left swing part, a right swing part, a holding body, and a suspension device. The left swing part rotatably supports a left front wheel. The right swing part rotatably supports a right front wheel. The left swing part and the right swing part are supported on the vehicle body. The holding body for supporting the suspension device is formed in a U-shape so as to sandwich the suspension device in a front-back direction. A support shaft provided in the suspension device is supported on the holding body on both sides in the front-back direction. The suspension device is rotatable about the support shaft. The suspension device is arranged at a position higher than the left swing part and the right swing part, and extends and contracts in conjunction with swings of the left swing part and the right swing part.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: August 2, 2022
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Taro Iwamoto, Hiroshi Ishii, Takeshi Nakajima, Kazuya Nagasaka, Taichi Inaba