Patents by Inventor Hirokazu Sakata
Hirokazu Sakata 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: 11714410Abstract: A vehicle driving system that controls switching between automatic driving by a vehicle and manual driving by a driver of the vehicle includes a temperature sensor configured to monitor a temperature of an automatic driving ECU which controls the automatic driving; and a microcontroller configured to: (i) set a threshold temperature based on an estimated gradient of increase in the temperature of the automatic driving ECU, the estimated gradient of increase being estimated based on a drive state of an equipment installed on the vehicle, and (ii) in a case where the temperature of the automatic driving ECU that is sensed by the temperature sensor becomes equal to or greater than the threshold temperature, perform an operation for prompting the driver to switch to the manual driving during the automatic driving.Type: GrantFiled: April 4, 2022Date of Patent: August 1, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirokazu Sakata
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Publication number: 20220221858Abstract: A vehicle driving system that controls switching between automatic driving by a vehicle and manual driving by a driver of the vehicle includes a temperature sensor configured to monitor a temperature of an automatic driving ECU which controls the automatic driving; and a microcontroller configured to: (i) set a threshold temperature based on an estimated gradient of increase in the temperature of the automatic driving ECU, the estimated gradient of increase being estimated based on a drive state of an equipment installed on the vehicle, and (ii) in a case where the temperature of the automatic driving ECU that is sensed by the temperature sensor becomes equal to or greater than the threshold temperature, perform an operation for prompting the driver to switch to the manual driving during the automatic driving.Type: ApplicationFiled: April 4, 2022Publication date: July 14, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirokazu SAKATA
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Publication number: 20220203775Abstract: The ground contact end is an end of a tread surface in the tire width direction in a state where the tire at an internal pressure of 230 kPa is under a load of 70% of the maximum load according to the load index. The predetermined region T is a region in a portion outside the ground contact end in the tire width direction and is defined between the ground contact end and a location spaced apart from the ground contact end by a distance corresponding to 8% or more and 15% or less of a width from the ground contact end to the other ground contact end in the tire width direction. The predetermined direction forms an angle of 0 degrees or more and 35 degrees or less with respect to a circumferential direction of the tire.Type: ApplicationFiled: December 13, 2021Publication date: June 30, 2022Applicant: Toyo Tire CorporationInventor: Hirokazu SAKATA
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Patent number: 11327484Abstract: The vehicle driving system capable of performing control of switching between automatic driving by a vehicle and manual driving by a driver, includes: a temperature monitoring section configured to monitor a temperature of an automatic driving ECU which controls the automatic driving; and a control section configured to control, on the basis of the temperature of the automatic driving ECU, an operation for prompting the driver to perform the switching to the manual driving during the automatic driving.Type: GrantFiled: January 23, 2019Date of Patent: May 10, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirokazu Sakata
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Patent number: 11207928Abstract: A pneumatic tire includes: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to cuter ends in the tire radial direction of the sidewall portions to form a tread; and a carcass layer suspended between the bead portions. The carcass layer has a first ply that continuously extends between the bead portions and that has opposite end portions respectively and a second ply that continuously extends on the outer side in the tire radial direction of the first ply, wherein the first ply has higher tensile strength than that of the second ply, and the end portion is positioned on the outer side in the tire radial direction of the end.Type: GrantFiled: November 13, 2018Date of Patent: December 28, 2021Assignee: TOYO TIRE CORPORATIONInventor: Hirokazu Sakata
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Patent number: 11198334Abstract: A pneumatic tire includes: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to outer ends in the tire radial direction of the sidewall portions to form a tread; a carcass layer suspended between the bead portions; and a belt layer provided on an outer side in the tire radial direction of the carcass layer in the tread portion. The carcass layer has a first ply that continuously extends between the bead portions and that has opposite end portions and a second ply that extends from a position in contact with an inner peripheral face of an end portion, wherein the second ply has higher tensile strength than the tensile strength of the first ply.Type: GrantFiled: November 13, 2018Date of Patent: December 14, 2021Assignee: TOYO TIRE CORPORATIONInventor: Hirokazu Sakata
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Publication number: 20210178713Abstract: A manufacturing device for a pneumatic tire in which a carcass ply includes a pair of ply pieces includes a molding drum, a drum drive device, a first supply device for supplying one of the ply pieces to the molding drum, a second supply device for supplying the other one of the ply pieces to the molding drum, and a control device that controls operation of the drum drive device and the first and second supply devices so that the one and the other one of the ply pieces are simultaneously supplied to the molding drum while the molding drum is rotationally driven, and two joint portions of the one and the other ply pieces are provided at different positions in the tire circumferential direction.Type: ApplicationFiled: December 8, 2020Publication date: June 17, 2021Applicant: TOYO TIRE CORPORATIONInventor: Hirokazu Sakata
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Publication number: 20210094352Abstract: A pneumatic tire includes a tread portion, sidewall portions, bead cores, an inner member including side portions and being continuous between the bead cores, a discontinuous ply disposed on an outer side in a tire radial direction of the inner member, and including ply pieces each having an inner end portion disposed in the tread portion, a side portion, and a winding portion wound up on the bead cores, a belt covering inner ends portion of the ply from the outer side in the tire radial direction, first joining members arranged between the inner end portions of the ply pieces and the inner member, and a pair of second joining members arranged between the inner end portions of the ply pieces and the belt, and each including an extending portion extending toward an outer side in a tire width direction beyond an end portion of the belt.Type: ApplicationFiled: September 15, 2020Publication date: April 1, 2021Applicant: TOYO TIRE CORPORATIONInventor: Hirokazu Sakata
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Patent number: 10780742Abstract: In a tire, a tread rubber includes a first layer which is grounded on a road surface in an outer peripheral surface thereof, and a second layer which is joined to an inner peripheral surface of the first layer in an outer peripheral surface thereof, the first layer includes a joint portion where rubbers having different elastic modulus are joined, and the second layer is formed by a rubber having a greater elastic modulus than an elastic modulus of at least one of the rubbers constructing the first layer.Type: GrantFiled: October 31, 2017Date of Patent: September 22, 2020Assignee: TOYO TIRE CORPORATIONInventor: Hirokazu Sakata
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Patent number: 10688829Abstract: A tire includes a tread rubber which is formed by a plurality kinds of rubber having different elastic modulus, the tread rubber is provided with peripheral joint portions where the plurality kinds of rubber having the different elastic modulus is joined in a tire peripheral direction, and a ground end portion of an outside surface of the tread rubber in a tire width direction is formed by the rubber having the greatest elastic modulus among the plurality kinds of rubber constructing the peripheral joint portions.Type: GrantFiled: November 2, 2017Date of Patent: June 23, 2020Assignee: TOYO TIRE CORPORATIONInventor: Hirokazu Sakata
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Publication number: 20190278265Abstract: The vehicle driving system capable of performing control of switching between automatic driving by a vehicle and manual driving by a driver, includes: a temperature monitoring section configured to monitor a temperature of an automatic driving ECU which controls the automatic driving; and a control section configured to control, on the basis of the temperature of the automatic driving ECU, an operation for prompting the driver to perform the switching to the manual driving during the automatic driving.Type: ApplicationFiled: January 23, 2019Publication date: September 12, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirokazu SAKATA
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Publication number: 20190160889Abstract: A pneumatic tire includes: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to outer ends in the tire radial direction of the sidewall portions to form a tread; a carcass layer suspended between the bead portions; and a belt layer provided on an outer side in the tire radial direction of the carcass layer in the tread portion. The carcass layer has a first ply that continuously extends between the bead portions and that has opposite end portions and a second ply that extends from a position in contact with an inner peripheral face of an end portion, wherein the second ply has higher tensile strength than the tensile strength of the first ply.Type: ApplicationFiled: November 13, 2018Publication date: May 30, 2019Applicant: TOYO TIRE & RUBBER CO., LTD.Inventor: Hirokazu Sakata
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Publication number: 20190160888Abstract: A pneumatic tire includes: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to cuter ends in the tire radial direction of the sidewali portions to form a tread; and a carcass layer suspended between the bead portions. The carcass layer has a first ply that continuously extends between the bead portions and that has opposite end portions respectively and a second ply that continuously extends on the outer side in the tire radial direction of the first ply, wherein the first ply has higher tensile strength than that of the second ply, and the end portion is positioned on the outer side in the tire radial direction of the end.Type: ApplicationFiled: November 13, 2018Publication date: May 30, 2019Applicant: TOYO TIRE & RUBBER CO., LTD.Inventor: Hirokazu Sakata
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Publication number: 20180186192Abstract: In a tire, a tread rubber includes a first layer which is grounded on a road surface in an outer peripheral surface thereof, and a second layer which is joined to an inner peripheral surface of the first layer in an outer peripheral surface thereof, the first layer includes a joint portion where rubbers having different elastic modulus are joined, and the second layer is formed by a rubber having a greater elastic modulus than an elastic modulus of at least one of the rubbers constructing the first layer.Type: ApplicationFiled: October 31, 2017Publication date: July 5, 2018Applicant: TOYO TIRE & RUBBER CO., LTD.Inventor: Hirokazu Sakata
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Publication number: 20180170112Abstract: A tire includes a tread rubber which is formed by a plurality kinds of rubber having different elastic modulus, the tread rubber is provided with peripheral joint portions where the plurality kinds of rubber having the different elastic modulus is joined in a tire peripheral direction, and a ground end portion of an outside surface of the tread rubber in a tire width direction is formed by the rubber having the greatest elastic modulus among the plurality kinds of rubber constructing the peripheral joint portions.Type: ApplicationFiled: November 2, 2017Publication date: June 21, 2018Applicant: TOYO TIRE & RUBBER CO., LTD.Inventor: Hirokazu Sakata
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Patent number: 6386733Abstract: A light emitting diode mounting structure for a light emitting diode having four leads has two metal plates fixed to wire on a housing. The leads engage the metal plates in electrical contact therewith and are supported by the metal plates, a surface part of which reflects light from the light emitting diode.Type: GrantFiled: November 15, 1999Date of Patent: May 14, 2002Assignee: Ichikoh Industries, Ltd.Inventors: Masaya Ohkohdo, Hirokazu Sakata
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Patent number: 6345902Abstract: A light emitting diode mounting structure for a light emitting diode having four leads has two metal plates fixed to wire on a housing. The leads engage the metal plates in electrical contact therewith and are supported by the metal plates, a surface part of which reflects light from the light emitting diode.Type: GrantFiled: January 23, 2001Date of Patent: February 12, 2002Assignee: Ichikoh Industries, Ltd.Inventors: Masaya Ohkohdo, Hirokazu Sakata
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Publication number: 20010007526Abstract: A light emitting diode mounting structure for a light emitting diode having four leads has two metal plates fixed to wire on a housing. The leads engage the metal plates in electrical contact therewith and are supported by the metal plates, a surface part of which reflects light from the light emitting diode.Type: ApplicationFiled: January 23, 2001Publication date: July 12, 2001Inventors: Masaya Ohkohdo, Hirokazu Sakata
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Patent number: D892027Type: GrantFiled: June 28, 2019Date of Patent: August 4, 2020Assignee: Toyo Tire CorporationInventor: Hirokazu Sakata
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Patent number: D931789Type: GrantFiled: October 2, 2019Date of Patent: September 28, 2021Assignee: Toyo Tire CorporationInventor: Hirokazu Sakata