Patents by Inventor Hideyuki Ikemoto
Hideyuki Ikemoto 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: 10946861Abstract: A hydroplaning determination device that determines occurrence of a hydroplaning phenomenon in a vehicle includes a tire mount sensor including a vibration detection unit, a signal process unit and a transmission unit, and a vehicle body system including a receiver, a condition determination unit and a hydroplaning determination unit. The vibration detection unit is attached to a rear surface of a tire provided in a vehicle and outputs a detection signal according to a magnitude of vibration of the tire. The signal process unit generates a vibration data based on the detection signal. The hydroplaning determination unit determines, based on the vibration data, whether a hydroplaning phenomenon has occurred when the condition determination unit determines that a road surface condition is a wet condition in which a water film exists between the tire and a road surface.Type: GrantFiled: January 12, 2017Date of Patent: March 16, 2021Assignee: DENSO CORPORATIONInventors: Takatoshi Sekizawa, Masashi Mori, Nobuya Watabe, Hideyuki Ikemoto, Yoichiro Suzuki
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Patent number: 10773718Abstract: A tire mount sensor detects a road surface condition such as a type of a road surface and a road surface ?, and transmits road surface data indicating a detection result to a communication center. The communication center collects road surface data more precisely, and the vehicle receives the more precise road surface data from the communication center. Based on received more precise road surface data, the risk of the vehicle is determined. Thus, the road surface condition is detected using the tire mount sensor, so that the road surface condition is detected without braking. Accordingly, it is possible to detect the road surface condition with high frequency, so that the road surface condition is detected in wider area, and it is possible to perform the control more appropriately for avoiding the risk based on the road surface condition during a travel.Type: GrantFiled: January 12, 2017Date of Patent: September 15, 2020Assignee: DENSO CORPORATIONInventors: Masashi Mori, Hideyuki Ikemoto, Takatoshi Sekizawa
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Patent number: 10661617Abstract: A protruding portion is provided on a molded resin portion of a tire mount sensor, and the longitudinal direction of the protruding portion is aligned with the longitudinal direction of an antenna. Further, the longitudinal direction of the antenna is set at a predetermined angle with respect to the acceleration detection direction of the G sensor. For example, with a predetermined angle of 0°, the longitudinal direction of the antenna may be matched with the acceleration detection direction of the G sensor.Type: GrantFiled: December 1, 2016Date of Patent: May 26, 2020Assignee: DENSO CORPORATIONInventors: Takatoshi Sekizawa, Hideyuki Ikemoto, Masashi Mori
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Publication number: 20190077408Abstract: A hydroplaning determination device that determines occurrence of a hydroplaning phenomenon in a vehicle includes a tire mount sensor including a vibration detection unit, a signal process unit and a transmission unit, and a vehicle body system including a receiver, a condition determination unit and a hydroplaning determination unit. The vibration detection unit is attached to a rear surface of a tire provided in a vehicle and outputs a detection signal according to a magnitude of vibration of the tire. The signal process unit generates a vibration data based on the detection signal. The hydroplaning determination unit determines, based on the vibration data, whether a hydroplaning phenomenon has occurred when the condition determination unit determines that a road surface condition is a wet condition in which a water film exists between the tire and a road surface.Type: ApplicationFiled: January 12, 2017Publication date: March 14, 2019Inventors: Takatoshi SEKIZAWA, Masashi MORI, Nobuya WATABE, Hideyuki IKEMOTO, Yoichiro SUZUKI
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Publication number: 20190047556Abstract: A tire mount sensor detects a road surface condition such as a type of a road surface and a road surface ?, and transmits road surface data indicating a detection result to a communication center. The communication center collects road surface data more precisely, and the vehicle receives the more precise road surface data from the communication center. Based on received more precise road surface data, the risk of the vehicle is determined. Thus, the road surface condition is detected using the tire mount sensor, so that the road surface condition is detected without braking. Accordingly, it is possible to detect the road surface condition with high frequency, so that the road surface condition is detected in wider area, and it is possible to perform the control more appropriately for avoiding the risk based on the road surface condition during a travel.Type: ApplicationFiled: January 12, 2017Publication date: February 14, 2019Inventors: Masashi MORI, Hideyuki IKEMOTO, Takatoshi SEKIZAWA
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Publication number: 20180370301Abstract: A protruding portion is provided on a molded resin portion of a tire mount sensor, and the longitudinal direction of the protruding portion is aligned with the longitudinal direction of an antenna. Further, the longitudinal direction of the antenna is set at a predetermined angle with respect to the acceleration detection direction of the G sensor. For example, with a predetermined angle of 0°, the longitudinal direction of the antenna may be matched with the acceleration detection direction of the G sensor.Type: ApplicationFiled: December 1, 2016Publication date: December 27, 2018Applicant: DENSO CORPORATIONInventors: Takatoshi SEKIZAWA, Hideyuki IKEMOTO, Masashi MORI
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Patent number: 5444595Abstract: A load drive apparatus is used in a vehicle direction indicating apparatus operable free from overcurrents and overvoltage. The load drive apparatus includes: a charging/recharging capacitor; a charging/recharging circuit for charging/recharging the capacitor at a preselected time constant in such a manner that a voltage across the capacitor is varied between a preset upper limit voltage and a preset lower limit voltage; a drive circuit for turning ON a power transistor series-connected to a current path employed to supply a current from a DC power source to a load, thereby driving the load when the charging/discharging circuit causes the capacitor to be charged, or the voltage across the capacitor is higher than, or equal to a predetermined voltage defined between the upper limit voltage and the lower limit voltage; overcurrent judging means for judging whether or not a voltage across terminals of the power transistor connected to the above-described current path exceed an overcurrent judging voltage.Type: GrantFiled: September 26, 1994Date of Patent: August 22, 1995Assignees: Nippondenso Co., Ltd., Anden Co., Ltd.Inventors: Fukuo Ishikawa, Shuuichi Konishi, Katsumi Nakamura, Hideyuki Ikemoto, Toshio Ishida