Patents by Inventor Tsutomu Tashiro
Tsutomu Tashiro 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: 9151242Abstract: A vehicle has an engine as a driving source. The vehicle has a charge system which generates electric power by using a part of rotational output of an engine, and charges a battery by the generated electric power. Optimal shaft efficiency points are combinations of revolution speed and torque of the engine for maximizing the shaft efficiency. Optimal shaft efficiency line passes through the optimal shaft efficiency points for each engine output level. Warming-up operation line is defined by shifting the optimal shaft output efficiency line to a side to increase heat loss. An engine controller stores the lines. The engine controller performs a warming-up operation by operating the engine at a revolution speed and a torque on the warming-up operation line. The engine controller controls the battery to reduce possibilities of a full charge at a next warming-up.Type: GrantFiled: November 29, 2012Date of Patent: October 6, 2015Assignee: DENSO CORPORATIONInventors: Tsuyoshi Okamoto, Tsutomu Tashiro
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Patent number: 8666583Abstract: A control device for a hybrid vehicle includes setting unit and supplied heat amount control unit. The setting unit sets the amount of heat for heating supplied by an electric heating system and a heater core such that a battery SOC and coolant temperature are arranged at a predetermined operating point after a predetermined time. The control unit controls this amount of heat based on the setting by the setting unit. The predetermined point is an operating point, which is the closest to a line passing through a predetermined value in a battery SOC target range and a predetermined value in a coolant temperature target range and having a preset change rate, and which is settable within the predetermined time. The change rate is the same as a gradient of an approximate line in case of selection of any one engine operating point on an optimum fuel economy line.Type: GrantFiled: February 12, 2013Date of Patent: March 4, 2014Assignee: Denso CorporationInventor: Tsutomu Tashiro
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Patent number: 8660733Abstract: A control device for a hybrid vehicle includes an engine operating point setting device, a coolant temperature prediction device, a battery state-of-charge prediction device, and a determination device. The determination device determines whether an amount of heat of coolant is short or excess based on coolant temperature predicted by the coolant temperature prediction device and determines whether an amount of charge of a battery is short or excess based on SOC of the battery predicted by the battery state-of-charge prediction device. When at least one of the amount of heat and the amount of charge is short or excess as a result of the determination by the determination device, the engine operating point setting device sets an engine operating point, which is shifted in a direction to eliminate the shortage or the excess.Type: GrantFiled: February 12, 2013Date of Patent: February 25, 2014Assignee: Denso CorporationInventors: Tsutomu Tashiro, Tsuyoshi Okamoto
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Patent number: 8612092Abstract: A request heat calculation unit calculates a request heat power requested to heat sources to supply. A heat cost calculation unit calculates a relationship between a heat power supplied from each of the heat sources and a heat cost, which is a fuel quantity consumed to supply a unit heat power. An abnormal source detection unit detects an abnormal heat source, which cannot normally supply a heat power, from the heat sources. An abnormal heat calculation unit calculates an abnormal heat power supplied from the abnormal heat source. A determination unit determines distribution of heat power supplied from the heat sources based on both the relationship and the abnormal heat power, such that a sum of the heat power supplied from the heat sources coincides with the request heat power, and the heat cost of all the heat sources is minimized.Type: GrantFiled: January 4, 2012Date of Patent: December 17, 2013Assignee: Denso CorporationInventors: Tsuyoshi Okamoto, Tsutomu Tashiro, Keisuke Tani
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Patent number: 8489300Abstract: An object of the present invention is to execute an optimum control of vibrations due to a driver's operation of an accelerator pedal, steering wheel and brake pedal. The operation instructions are inputted into a vibration calculating means (kinetic model) comprising a vehicle body model, suspension model and tire model. Conventional kinetic model controlled the suspension in order to suppress the vehicle body vibration. However, in the kinetic model of the present invention, the tire vibration due to a change in the engine output is first absorbed by the suspension, whereby a residual vibration which was not be absorbed yet by the suspension is transferred to the vehicle body. The operation inputs are compensated by the three feed-back loops between the outputs of the above-mentioned three portions and input of the tire portion, giving the highest priority on the vehicle body model.Type: GrantFiled: November 10, 2003Date of Patent: July 16, 2013Assignee: DENSO CORPORATIONInventors: Motoaki Kataoka, Toshiki Matsumoto, Tsutomu Tashiro, Mamoru Mabuchi, Mamoru Sawada
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Publication number: 20120179329Abstract: A request heat calculation unit calculates a request heat power requested to heat sources to supply. A heat cost calculation unit calculates a relationship between a heat power supplied from each of the heat sources and a heat cost, which is a fuel quantity consumed to supply a unit heat power. An abnormal source detection unit detects an abnormal heat source, which cannot normally supply a heat power, from the heat sources. An abnormal heat calculation unit calculates an abnormal heat power supplied from the abnormal heat source. A determination unit determines distribution of heat power supplied from the heat sources based on both the relationship and the abnormal heat power, such that a sum of the heat power supplied from the heat sources coincides with the request heat power, and the heat cost of all the heat sources is minimized.Type: ApplicationFiled: January 4, 2012Publication date: July 12, 2012Applicant: DENSO CORPORATIONInventors: Tsuyoshi OKAMOTO, Tsutomu TASHIRO, Keisuke TANI
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Patent number: 7975801Abstract: Tire-uniformity components may generate a lateral force on a vehicle body, when the vehicle is in a turning movement. The lateral force may cause vibrations on the vehicle body. The controller controls a motor of an electric power steering system to modulate an assist torque acting on steerable wheels in accordance with the tire-uniformity components. The assist torque is modulated in the same direction as the lateral force. As a result, it is possible to reduce vibrations on the vehicle body, since the modulated assist torque avoids conflict with the lateral force and release the lateral force.Type: GrantFiled: October 14, 2008Date of Patent: July 12, 2011Assignee: Denso CorporationInventor: Tsutomu Tashiro
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Patent number: 7843590Abstract: Provided is an information management method for use in an information management system that includes a coordinate pointing device for identifying a paper medium, and a contents server for managing a digital document, and holds an attribute of the digital document and an attribute of a paper document obtained by printing the digital document on the paper medium, the information management method comprising: judging whether a paper document identified by the coordinate pointing device is a master of a document by referring to an attribute of the paper document; and permitting, when it is judged that the identified paper document is the master of the document, to update information annotated to the identified paper document in a digital document corresponding to the paper document to which the information has been annotated.Type: GrantFiled: February 8, 2007Date of Patent: November 30, 2010Assignee: Hitachi, Ltd.Inventors: Hisashi Ikeda, Naohiro Furukawa, Kosuke Konishi, Tsutomu Tashiro, Shoichi Nakagami
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Patent number: 7783402Abstract: A vehicle stability control system uses a physical quantity corresponding to a driver accelerator input to control engine power produced by an engine and to controllably drive an engine load device for regulating the engine power to produce a desired drive force. The vehicle stability control system includes a vibration detector and a corrector. The vibration detector determines a vibration that occurs during running of the vehicle to disturb the stability of the vehicle. The corrector drives the engine load device to suppress the vibration in response to the vibration determined by the vibration detector.Type: GrantFiled: August 11, 2005Date of Patent: August 24, 2010Assignee: Denso CorporationInventors: Mamoru Sawada, Toshiki Matsumoto, Takehito Fujiii, Tsutomu Tashiro
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Patent number: 7598590Abstract: The semiconductor chip 1 has a semiconductor substrate 10. In the present embodiment, the semiconductor substrate 10, which is an SOI substrate, is constituted by comprising a support substrate 12, an insulating layer 14 formed on the support substrate 12 with a layered structure, and a silicon layer 16 formed on the insulating layer 14 with the layered structure. The semiconductor substrate 10 has a circuit forming region A1 provided in the silicon layer 16. An insulating region 18 is provided on the semiconductor substrate 10. The insulating region 18 is provided so as to surround the entire side face of the circuit forming region A1.Type: GrantFiled: June 3, 2005Date of Patent: October 6, 2009Assignee: NEC Electronics CorporationInventors: Masaya Kawano, Tsutomu Tashiro, Yoichiro Kurita
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Publication number: 20090224387Abstract: The semiconductor chip 1 has a semiconductor substrate 10. In the present embodiment, the semiconductor substrate 10, which is an SOI substrate, is constituted by comprising a support substrate 12, an insulating layer 14 formed on the support substrate 12 with a layered structure, and a silicon layer 16 formed on the insulating layer 14 with the layered structure. The semiconductor substrate 10 has a circuit forming region A1 provided in the silicon layer 16. An insulating region 18 is provided on the semiconductor substrate 10. The insulating region 18 is provided so as to surround the entire side face of the circuit forming region A1.Type: ApplicationFiled: May 15, 2009Publication date: September 10, 2009Applicant: NEC Electronics CorporationInventors: Masaya KAWANO, Tsutomu TASHIRO, Yoichiro KURITA
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Publication number: 20090095564Abstract: Tire-uniformity components may generate a rotating force on the vehicle, when the vehicle is in a turning movement. The rotating force may spoil or deteriorate a turning performance of the vehicle. The controller controls a motor of an electric power steering system to modulate an assist torque acting on steerable wheels in accordance with the tire-uniformity components. The assist torque is modulated in the same direction as the rotating force. As a result, it is possible to suppress a deterioration of the turning performance of the vehicle.Type: ApplicationFiled: October 14, 2008Publication date: April 16, 2009Applicant: DENSO CORPORATIONInventor: Tsutomu Tashiro
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Publication number: 20090095565Abstract: Tire-uniformity components may generate a lateral force on a vehicle body, when the vehicle is in a turning movement. The lateral force may cause vibrations on the vehicle body. The controller controls a motor of an electric power steering system to modulate an assist torque acting on steerable wheels in accordance with the tire-uniformity components. The assist torque is modulated in the same direction as the lateral force. As a result, it is possible to reduce vibrations on the vehicle body, since the modulated assist torque avoids conflict with the lateral force and release the lateral force.Type: ApplicationFiled: October 14, 2008Publication date: April 16, 2009Applicant: DENSO CORPORATIONInventor: Tsutomu Tashiro
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Patent number: 7457697Abstract: A vehicle integration control system includes a manager controller and a driving system controller. The manager controller sets a target generation driving force guide value for a driving force outputted from a driving system of a vehicle. The driving system controller controls the driving force on the basis of the target generation driving force guide value. The manager controller includes a driver request value setter and a driving force corrector. The driver request value setter sets a driver request generation driving force value corresponding to the driving force outputted from the driving system on the basis of a driver's input. The driving force corrector corrects the driver request generation driving force value on the basis of a predetermined program to restrain vibration generated in the vehicle when the driving force outputted from the driving system.Type: GrantFiled: December 21, 2004Date of Patent: November 25, 2008Assignee: DENSO CorporationInventors: Mamoru Sawada, Toshiki Matsumoto, Tsutomu Tashiro, Mamoru Mabuchi, Takehito Fujii, Motoaki Kataoka
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Patent number: 7328097Abstract: While a driving torque TD outputted to a driving shaft via an AT from an engine is detected, a road-surface transmitting torque Td_tire is detected based on rotation speeds Vwdr, Vwdl of vehicle driving wheels, a vehicle body speed Vd, and driving torques Tdr, Tdl, all of which are previously detected. The driving torque TD and the road-surface transmitting torque Td_tire are then compared to each other. When TD>Td_tire, the driving torque from an engine is controlled so as to decrease a value of (TD?Td_tire). The vibrations of individual vehicle parts are thereby decreased.Type: GrantFiled: November 8, 2004Date of Patent: February 5, 2008Assignee: DENSO CorporationInventors: Mamoru Sawada, Toshiki Matsumoto, Tsutomu Tashiro, Mamoru Mabuchi, Takehito Fujii
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Publication number: 20070263019Abstract: The invention has an object to guarantee, when rewritable paper is used, authenticity of information shown on the rewritable paper. Provided is an information management method for managing information concerning a medium executed in an information management system including: the medium capable of representing on a surface thereof object information that is contents concerning an object; a management apparatus for managing a history of operation on the medium; and a printing apparatus for representing the object information on the medium and erasing the represented object information from the medium, the information management method comprising: holding, by the management apparatus, a correspondence among an identifier of the medium, the object information represented on the medium, and a valid period of the object; and recording, by the management apparatus, a start of the valid period of the object when the printing apparatus represents the object information on the medium.Type: ApplicationFiled: May 7, 2007Publication date: November 15, 2007Inventors: Naohiro Furukawa, Hisashi Ikeda, Kosuke Konishi, Tsutomu Tashiro, Shoichi Nakagami
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Publication number: 20070230750Abstract: Provided is an information management method for use in an information management system that includes a coordinate pointing device for identifying a paper medium, and a contents server for managing a digital document, and holds an attribute of the digital document and an attribute of a paper document obtained by printing the digital document on the paper medium, the information management method comprising: judging whether a paper document identified by the coordinate pointing device is a master of a document by referring to an attribute of the paper document; and permitting, when it is judged that the identified paper document is the master of the document, to update information annotated to the identified paper document in a digital document corresponding to the paper document to which the information has been annotatedType: ApplicationFiled: February 8, 2007Publication date: October 4, 2007Inventors: Hisashi Ikeda, Naohiro Furukawa, Kosuke Konishi, Tsutomu Tashiro, Shoichi Nakagami
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Patent number: 7262486Abstract: The SOI substrate 1 has a supporting substrate 10, an insulating layer 20 formed on the supporting substrate 10 and a silicon layer 30 formed on the insulating layer 20. A through electrode 40 is provided in a device formation region A1 of the SOI substrate 1. The through electrode 40 reaches the insulating layer 20 from the silicon layer 30. Specifically, the through electrode 40 extends to an inner part of the insulating layer 20 originating from a surface of the silicon layer 30 while penetrating the silicon layer 30. Here, an end face 40a of the through electrode 40 at the insulating layer 20 side stops inside the insulating layer 20.Type: GrantFiled: June 17, 2005Date of Patent: August 28, 2007Assignee: NEC Electronics CorporationInventors: Masaya Kawano, Tsutomu Tashiro, Yoichiro Kurita
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Patent number: 7241249Abstract: In a driving condition control system, a sensing unit is configured to sense a first physical quantity indicative of a rotation of the first rotatable axle assembly and a second physical quantity indicative of a rotation of the second rotatable axle assembly. A correcting unit is configured to correct the torque according to the sensed first and second physical quantities of the rotations of the first and second rotational axle assemblies. This allows the torque to be precisely obtained.Type: GrantFiled: June 17, 2004Date of Patent: July 10, 2007Assignee: DENSO CORPORATIONInventors: Mamoru Sawada, Toshiki Matsumoto, Tsutomu Tashiro, Mamoru Mabuchi, Takehito Fujii, Motoaki Kataoka
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Patent number: 7169083Abstract: In a driving condition control system, a sensing unit senses a first physical quantity indicative of a rotation of the first rotatable axle assembly and a second physical quantity indicative of a rotation of the second rotatable axle assembly. A determining unit compares the first and second physical quantities of the rotations of the first and second rotational axle assemblies and determines whether a driving condition of the vehicle is unstable according to the compared result. As a result, the unstable condition of the vehicle can be rapidly detected without detecting a yaw moment of the vehicle.Type: GrantFiled: June 17, 2004Date of Patent: January 30, 2007Assignee: Denso CorporationInventors: Mamoru Sawada, Toshiki Matsumoto, Tsutomu Tashiro, Mamoru Mabuchi, Takehito Fujii, Motoaki Kataoka