Patents by Inventor Hirotoshi UCHIBORI
Hirotoshi UCHIBORI 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: 11945518Abstract: A steer-by-wire steering device includes a first member, a second member, and stoppers. The first member is rotatable together with the input shaft, and includes a first protrusion protruding from the input shaft in the radial direction. The second member includes a second protrusion protruding on the trajectory of the first protrusion, and is rotatable together with the first member with the first protrusion being abutting the second protrusion. The stoppers are provided at respective positions capable of abutting on the trajectory of the second protrusion only when the second member is rotated by the first member.Type: GrantFiled: May 30, 2019Date of Patent: April 2, 2024Assignee: HITACHI ASTEMO, LTD.Inventors: Hiroshi Fujita, Hirotoshi Uchibori
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Patent number: 11260897Abstract: A steer-by-wire steering device includes a first member, a second member, and a stopper. The first member includes a first base surrounding an input shaft and rotatable, a first protrusion protruding from the first base in a radial direction or in an axial direction, and a first weight provided on the first base so as to make a weighted center consistent with a center of the input shaft. The second member is rotatable together with the first member with the first protrusion being abutting the second protrusion. The stopper is provided on a trajectory of the second protrusion, and is capable of restricting the turn of a steering wheel via the input shaft when abutting with the second protrusion.Type: GrantFiled: May 30, 2019Date of Patent: March 1, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Hiroshi Fujita, Hirotoshi Uchibori
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Publication number: 20210245793Abstract: A steer-by-wire steering device includes a first member, a second member, and stoppers. The first member is rotatable together with the input shaft, and includes a first protrusion protruding from the input shaft in the radial direction. The second member includes a second protrusion protruding on the trajectory of the first protrusion, and is rotatable together with the first member with the first protrusion being abutting the second protrusion. The stoppers are provided at respective positions capable of abutting on the trajectory of the second protrusion only when the second member is rotated by the first member.Type: ApplicationFiled: May 30, 2019Publication date: August 12, 2021Inventors: Hiroshi Fujita, Hirotoshi Uchibori
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Publication number: 20210163060Abstract: A steer-by-wire steering device includes a first member, a second member, and a stopper. The first member includes a first base surrounding an input shaft and rotatable, a first protrusion protruding from the first base in a radial direction or in an axial direction, and a first weight provided on the first base so as to make a weighted center consistent with a center of the input shaft. The second member is rotatable together with the first member with the first protrusion being abutting the second protrusion. The stopper is provided on a trajectory of the second protrusion, and is capable of restricting the turn of a steering wheel via the input shaft when abutting with the second protrusion.Type: ApplicationFiled: May 30, 2019Publication date: June 3, 2021Inventors: Hiroshi Fujita, Hirotoshi Uchibori
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Patent number: 9932065Abstract: A steering device includes a motor, a first shaft, a transmitter, a second shaft, and an engagement portion. The first shaft of a hollow cylindrical shape is coupled in a torque transmittable manner to a steering member with which a driver performs steering operation. The transmitter is disposed on an outer circumference of the first shaft and configured to transmit torque of the motor to the first shaft. The second shaft is coupled in a torque transmittable manner to a wheel-turning unit configured to turn wheels. The second shaft is inserted in the first shaft. The engagement portion is interposed between an inner surface of the first shaft and an outer surface of the second shaft and configured to make the first shaft and the second shaft engage with each other.Type: GrantFiled: August 11, 2016Date of Patent: April 3, 2018Assignee: SHOWA CORPORATIONInventor: Hirotoshi Uchibori
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Patent number: 9739312Abstract: A bearing mechanism includes a stationary portion and a rotating portion. The stationary portion includes a shaft portion and a plate portion. The rotating portion includes a sleeve including an annular portion, a cylindrical portion, an annular bottom surface, and a first communication hole. The rotating portion includes a ring member arranged to cover at least a portion of an opening of the first communication hole, and faces the plate portion via a first gap. A pumping groove array is disposed in the plate portion or the ring member. A second communication hole is disposed between the ring member and the annular bottom surface, and connected to the first communication hole. At least a portion of the opening of the second communication hole is positioned on a farther radial direction inner side than the pumping groove array.Type: GrantFiled: August 13, 2014Date of Patent: August 22, 2017Assignee: NIDEC CORPORATIONInventors: Hirotoshi Uchibori, Toshihiro Akiyama, Atsushi Yawata
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Publication number: 20170197652Abstract: A steering device includes a motor, a first shaft, a transmitter, a second shaft, and an engagement portion. The first shaft of a hollow cylindrical shape is coupled in a torque transmittable manner to a steering member with which a driver performs steering operation. The transmitter is disposed on an outer circumference of the first shaft and configured to transmit torque of the motor to the first shaft. The second shaft is coupled in a torque transmittable manner to a wheel-turning unit configured to turn wheels. The second shaft is inserted in the first shaft. The engagement portion is interposed between an inner surface of the first shaft and an outer surface of the second shaft and configured to make the first shaft and the second shaft engage with each other.Type: ApplicationFiled: August 11, 2016Publication date: July 13, 2017Applicant: Showa CorporationInventor: Hirotoshi UCHIBORI
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Patent number: 9165594Abstract: A spindle motor includes a stationary portion with a shaft, a circular plate portion, a wall portion, and a plate portion. The plate portion has a flat plate portion and an annular convex portion. The sleeve includes an annular portion, an outer side cylindrical portion, and an inner side cylindrical portion. The inner side cylindrical portion and an upper radial dynamic pressure groove array are superimposed in a radial direction. The upper radial dynamic pressure groove array includes a plurality of upper spiral grooves that is inclined in one direction with respect to an axial direction and a plurality of lower spiral grooves that is inclined in another direction opposite to the one direction. A lower end of the upper spiral grooves is positioned farther on an upper side than an upper surface of the annular portion.Type: GrantFiled: August 13, 2014Date of Patent: October 20, 2015Assignee: Nidec CorporationInventors: Atsushi Yawata, Hirotoshi Uchibori, Toshihiro Akiyama
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Publication number: 20150085398Abstract: A spindle motor includes a stationary portion with a shaft, a circular plate portion, a wall portion, and a plate portion. The plate portion has a flat plate portion and an annular convex portion. The sleeve includes an annular portion, an outer side cylindrical portion, and an inner side cylindrical portion. The inner side cylindrical portion and an upper radial dynamic pressure groove array are superimposed in a radial direction. The upper radial dynamic pressure groove array includes a plurality of upper spiral grooves that is inclined in one direction with respect to an axial direction and a plurality of lower spiral grooves that is inclined in another direction opposite to the one direction. A lower end of the upper spiral grooves is positioned farther on an upper side than an upper surface of the annular portion.Type: ApplicationFiled: August 13, 2014Publication date: March 26, 2015Inventors: Atsushi YAWATA, Hirotoshi UCHIBORI, Toshihiro AKIYAMA
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Publication number: 20150084463Abstract: A bearing mechanism includes a stationary portion and a rotating portion. The stationary portion includes a shaft portion and a plate portion. The rotating portion includes a sleeve including an annular portion, a cylindrical portion, an annular bottom surface, and a first communication hole. The rotating portion includes a ring member arranged to cover at least a portion of an opening of the first communication hole, and faces the plate portion via a first gap. A pumping groove array is disposed in the plate portion or the ring member. A second communication hole is disposed between the ring member and the annular bottom surface, and connected to the first communication hole. At least a portion of the opening of the second communication hole is positioned on a farther radial direction inner side than the pumping groove array.Type: ApplicationFiled: August 13, 2014Publication date: March 26, 2015Inventors: Hirotoshi UCHIBORI, Toshihiro AKIYAMA, Atsushi YAWATA