Patents by Inventor Hiroyuki Shibata
Hiroyuki Shibata 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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Publication number: 20110205276Abstract: A recording head adjustment method includes: a dot row forming step of causing relative movement between a recording medium and a recording head in which a plurality of sub-heads each including a plurality of recording elements are joined together, and driving the plurality of recording elements at prescribed drive timing with respect to each of the plurality of sub-heads in such a manner that dot rows for the respective sub-heads are formed in a direction substantially perpendicular to a direction of the relative movement; a step-difference amount calculation step of measuring positions in the direction of the relative movement of the dot rows for the respective sub-heads in a situation where a range of a part of the dot rows formed by an overlapping portion between the mutually adjacent sub-heads where recording rates represented by number of dots per unit surface area are substantially same as each other is set as a measurement object, and obtaining an amount of step difference between the sub-heads represType: ApplicationFiled: February 18, 2011Publication date: August 25, 2011Inventors: Hiroyuki SHIBATA, Yoshiharu Sasaki
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Patent number: 7998021Abstract: A control method for a vehicular drive apparatus that includes a driving power source that includes an engine and a motor, and a shift portion provided in a power transmission path from the driving power source to a drive wheel, includes staring the engine by executing an engine speed control that increases an engine speed to a predetermined engine speed or higher, and executing an engine torque generation control that generates engine torque by supplying fuel and igniting the fuel at the predetermined engine speed or higher. In the case where the controller determines that the period during which the shift of the shift portion is performed overlaps the period during which the engine is started, the engine is started by executing the engine speed control during the shift of the shift portion, and executing the engine torque generation control after the shift of the shift portion is completed.Type: GrantFiled: November 28, 2007Date of Patent: August 16, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tooru Matsubara, Yuji Iwase, Hiroyuki Shibata, Atsushi Tabata
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Patent number: 7998022Abstract: A control device for a vehicle which includes a differential portion controlling a differential state between the number of rotations of an input shaft connected to an engine, and the number of rotations of an output shaft connected to drive wheels, with controlling an operating state of an electric motor, and an automatic shifting portion forming part of a power transmitting path. The control device prevents degradation in operability of the vehicle, even in the presence of a shifting command resulting from a manual shift operation when the automatic shifting portion remains under a limited shifting state. More particularly, if the shifting command is present due to the manual shift operation, the differential state of the differential portion is controlled, thereby causing a variation in a drive force at a rate corresponding to the shifting command.Type: GrantFiled: April 22, 2008Date of Patent: August 16, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tooru Matsubara, Hiroyuki Shibata, Atsushi Tabata
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Patent number: 7976428Abstract: A control system for a drive unit of a vehicle, in which a power distribution mechanism is arranged on a route from a prime mover to a wheel, and a transmission is arranged on an output side of the power distribution mechanism. The control system includes a revolution frequency controller that restrains a variation in a revolution frequency of the prime mover by controlling a revolution frequency of the reaction force establishing device until a predetermined time elapses since a commencement of a shifting operation of the transmission. The control system is capable of restraining a variation in an output torque, in case of carrying out a shifting operation of a transmission arranged on an output side of a prime mover.Type: GrantFiled: October 26, 2006Date of Patent: July 12, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tooru Matsubara, Takashi Ohta, Hideaki Komada, Yukihiko Ideshio, Hiroyuki Shibata
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Publication number: 20110160947Abstract: A control device of a hybrid vehicle includes: a map defined by an accelerator opening degree and a vehicle speed and in which an infinite variable speed mode and a fixed speed change mode are set; and a control means which switches the speed change mode in accordance with the movement of the vehicle operation point on the map. The fixed speed change mode area includes: a first fixed speed change mode area in which the reaction torque becomes equal to or smaller than the maximum rating torque of the motor generator, and a second fixed speed change mode area in which the reaction torque becomes larger than the maximum rating torque. The control means differentiates the speed change mode switching method in accordance with which one of the first and the second fixed speed change mode areas the vehicle operation point locates in or moves to.Type: ApplicationFiled: November 5, 2008Publication date: June 30, 2011Applicant: Toyota Jidosha Kabushiki KaishaInventors: Yukihiko Ideshio, Hideaki Komada, Hiroyuki Shibata, Tomohito Ono, Wataru Yokoyama
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Patent number: 7967090Abstract: A hybrid drive system includes an engine; at least one rotating electric machine, wherein the engine and the at least one rotating electric machine are capable of driving a vehicle; and a controller. The controller starts a load limit control that limits a load exerted to the rotating electric machine when a temperature of the rotating electric machine exceeds a load limit start temperature; detects a loading state or a towing state of the vehicle; and determines the load limit start temperature based on the loading state or the towing state detected.Type: GrantFiled: December 13, 2007Date of Patent: June 28, 2011Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Tomoo Atarashi, Shigeki Takami, Nobukazu Ike, Yuji Iwase, Atsushi Tabata, Tooru Matsubara, Hiroyuki Shibata, Tatsuya Imamura, Takuma Kakinami, Kenta Kumazaki
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Publication number: 20110143875Abstract: In a drive apparatus in which a first motor-generator, a power split device, a shift mechanism, and a second motor-generator are coaxially arranged, a first support wall which is next to the second motor-generator and supports one end of a rotor, and a second support wall that supports the other end of the rotor are provided in a case. A switching portion of the shift mechanism is provided on the first support wall. This kind of structure enables the drive apparatus to be shorter in the axial direction.Type: ApplicationFiled: October 22, 2009Publication date: June 16, 2011Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Tomohito Ono, Hideaki Komada, Yukihiko Ideshio, Hiroyuki Shibata, Miyoshi Kawaguchi
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Patent number: 7955215Abstract: A vehicular drive system is disclosed as including an electrically operated differential portion (16) disposed in a power transmitting path between an engine (8) and drive wheels (38) for controlling an operating state of an electric motor (M), connected to a rotary element of a differential portion (11), for controlling a differential state between an input-shaft rotation speed and an output-shaft rotation speed, and a shifting portion (20) forming a part of the power transmitting path and functioning as a step-variable automatic shifting portion. A control device (40) performs a control of output torque of the electric motor during a downshift of the step-variable shifting portion so as to suppress a variation in the engine rotation speed. The control of output torque is performed so as to increase the output torque by inertia torque of the electric motor, thereby achieving a reduction in shifting shock.Type: GrantFiled: December 19, 2007Date of Patent: June 7, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroyuki Shibata
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Patent number: 7942245Abstract: An oil return structure for a vehicle drive apparatus includes a hydraulic control apparatus disposed below an oil supply target device to which oil for lubricating and cooling is supplied; and an oil pan that retains the oil that is supplied to the oil supply target device is provided below the hydraulic control apparatus, wherein a bypass oil path is formed in a body of the hydraulic control apparatus, the bypass oil path being structured in order to guide the oil from the oil supply target device from an upper surface of the body, inside the body and then discharge the oil from a side surface of the body.Type: GrantFiled: March 21, 2008Date of Patent: May 17, 2011Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Shimizu, Akira Noguchi, Kazuyuki Noda, Masaki Yoshida, Tooru Matsubara, Kenta Kumazaki, Atsushi Tabata, Yuji Iwase, Hiroyuki Shibata
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Publication number: 20110111910Abstract: A drive system includes a transmission mechanism that establishes a plurality of gear positions comprising a first-speed through sixth-speed gear positions and a reverse-drive gear position, by switching among change gear trains and coupling a first driveshaft to an output member, and also includes a lock clutch that switches a power distribution mechanism between a locked state in which a ring gear and a carrier are coupled to each other and are inhibited from rotating in a differential fashion, and a released state in which the inhibition of the differential rotation is cancelled.Type: ApplicationFiled: June 2, 2009Publication date: May 12, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yukihiko Ideshio, Shigeru Okuwaki, Hiroyuki Shibata, Tomohito Ono, Seiji Masunaga, Makoto Funahashi
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Patent number: 7935022Abstract: A control apparatus for a hybrid vehicle power transmitting system including a switching portion operable to switch a power transmitting path between a power transmitting state and a power cut-off state in response to an operation of a shift lever, the control apparatus including (a) an operating-state estimating portion configured to estimate an operating speed of an electric motor which constitutes a part of the power transmitting path or a rotating speed of a coupling element of the coupling portion, which speed is established after switching of the power transmitting path from one of the power transmitting and cut-off states to the other, and (b) a switching restricting portion configured to restrict a switching operation to switch the power transmitting path between the two states, when the estimated operating or rotating speed of the electric motor or coupling device is higher than a predetermined upper limit.Type: GrantFiled: May 22, 2008Date of Patent: May 3, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Iwase, Tooru Matsubara, Hiroyuki Shibata, Atsushi Tabata
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Publication number: 20110093173Abstract: In a gear shift control device for a vehicle that shifts a transmission having a plurality of gears based on a shift line set in a shift map, an upshift line for shifting to the highest gear, and a downshift line that is located in a high vehicle speed region on the side of a higher vehicle speed than the upshift line are set in the shift map. The downshift line is used when shifting from the highest gear to a prescribed gear that has a larger gear ratio than the highest gear.Type: ApplicationFiled: June 2, 2009Publication date: April 21, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yukihiko Ideshio, Shigeru Okuwaki, Hiroyuki Shibata, Tomohito Ono
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Patent number: 7917277Abstract: A control apparatus for a vehicular drive system including an electrically controlled differential portion having a differential mechanism, and an electric motor which is operatively connected to the differential mechanism and an operating state of which is controlled to control a differential state between input and output shaft speeds, and a transmission portion constituting a part of a power transmitting path between the differential portion and a vehicle drive wheel, the control apparatus including a differential-state switching portion for switching the differential portion between differential-state and non-differential states, a shifting control portion for controlling a shifting action of the transmission portion, and a learning control portion for effecting learning compensation of a control amount of a control element to be controlled during the shifting action, wherein the learning control portion includes a differential-state learning control portion operable to implement the learning compensationType: GrantFiled: March 12, 2008Date of Patent: March 29, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Tooru Matsubara, Yuji Iwase, Hiroyuki Shibata
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Publication number: 20100245427Abstract: An image forming device is provided. The image forming device includes: a liquid drop jetting head having liquid chambers including jetting ports that jet liquid drops onto a recording medium, and a flow path that supplies or recovers liquid to or from the respective liquid chambers; and a control component controlling the liquid drop jetting head so that, among a plurality of and at least some of the jetting ports at a same flow path, jetting ports that jet liquid drops so that there becomes a suppressed recording rate that is suppressed as compared with a predetermined standard recording rate in accordance with image information expressing an image to be formed on the recording medium, and jetting ports that jet liquid drops so that there becomes a promoted recording rate that is promoted as compared with the standard recording rate, are neighboring.Type: ApplicationFiled: March 12, 2010Publication date: September 30, 2010Inventor: Hiroyuki SHIBATA
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Patent number: 7798938Abstract: A control system for a drive unit of a vehicle, including a reaction force establishing device controlling a speed change ratio of a continuously variable transmission, and a clutch mechanism arranged on a power transmission route from the continuously variable transmission to a wheel and in which a torque capacity thereof is controllable. A first input torque control mechanism lowers a torque to be inputted to the clutch mechanism through the continuously variable transmission, by controlling a torque of the reaction force establishing device while the torque capacity of the clutch mechanism is being controlled. The system reduces a change in a torque inputted to a clutch mechanism, in case of carrying out a speed change operation of a continuously variable transmission and engaging the clutch mechanism.Type: GrantFiled: October 26, 2006Date of Patent: September 21, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tooru Matsubara, Takashi Ohta, Hideaki Komada, Yukihiko Ideshio, Hiroyuki Shibata
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Patent number: 7794541Abstract: Disclosed is a method of manufacturing a GaN-based material having high thermal conductivity. A gallium nitride-based material is grown by HVPE (Hydride Vapor Phase Epitaxial Growth) by supplying a carrier gas (G1) containing H2 gas, GaCl gas (G2), and NH3 gas (G3) to a reaction chamber (10), and setting the growth temperature at 900 (° C.) (inclusive) to 1,200 (° C.) (inclusive), the growth pressure at 8.08×104 (Pa) (inclusive) to 1.21×105 (Pa) (inclusive), the partial pressure of the GaCl gas (G2) at 1.0×104 (Pa) (inclusive) to 1.0×104 (Pa) (inclusive), and the partial pressure of the NH3 gas (G3) at 9.1×102 (Pa) (inclusive) to 2.0×104 (Pa) (inclusive).Type: GrantFiled: March 8, 2007Date of Patent: September 14, 2010Assignees: Tohoku University, Mitsubishi Chemical CorporationInventors: Hiroyuki Shibata, Yoshio Waseda, Kenji Shimoyama, Kazumasa Kiyomi, Hirobumi Nagaoka
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Publication number: 20100207580Abstract: It is an object to provide a battery system whose life can be extended. A cell pack having at least one lithium secondary battery that uses a manganese-based cathode material and a control unit that controls charging and discharging of the cell pack are provided, and the control unit controls charging and discharging within a low-degradation voltage range that is set on the basis of a target cell degradation rate.Type: ApplicationFiled: March 31, 2008Publication date: August 19, 2010Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., KYUSHU ELECTRIC POWER CO., INC.Inventors: Takehiko Nishida, Katsuaki Kobayashi, Tomoh Akiyama, Katsuo Hashizaki, Hidehiko Tajima, Kazuyuki Adachi, Shinji Murakami, Yoshihiro Wada, Hiroyuki Shibata, Kouji Kurayama
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Patent number: 7762365Abstract: An electric vehicle drive control device that includes a first electric motor; a second electric motor; a differential device that includes first, second, and third rotational elements, wherein the first rotational element is connected to the first electric motor, the second rotational element is connected to the second electric motor via a transmission shaft, and the third rotational element is connected to an engine; a transmission for shifting that shifts a speed of a rotation transferred to from the transmission shaft; and a controller that: controls electric motor control processing means for controlling a rotation speed of the first electric motor in conjunction with shifting performed by the transmission; and adjusts electric power adjustment processing means for adjusting an electric power consumptions generated in the first and second electric motors, by controlling an output supplied to the second electric motor in conjunction with the control of the rotation speed of the first electric motor.Type: GrantFiled: October 26, 2006Date of Patent: July 27, 2010Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Makoto Iwanaka, Shigeki Takami, Ryuji Ibaraki, Tooru Matsubara, Hiroyuki Shibata
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Publication number: 20100162945Abstract: A method to make gallium nitride-based material by Hydride Vapor Phase Epitaxial Growth is provided.Type: ApplicationFiled: March 8, 2010Publication date: July 1, 2010Applicants: Tohoku University, Mitsubishi Chemical CorporationInventors: Hiroyuki Shibata, Yoshio Waseda, Kenji Shimoyama, Kazumasa Kiyomi, Hirobumi Nagaoka
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Publication number: 20100152493Abstract: It has been demanded to improve the poor solubility of curcumin to develop an anti-tumor compound capable of inhibiting the growth of various cancer cells at a low concentration. Thus, disclosed is a novel synthetic compound, a bis(arylmethylidene)acetone, which has both of an excellent anti-tumor activity and a chemo-preventive activity. A bis(arylmethylidene)acetone (i.e., a derivative having a curcumin skeleton) which is an anti-tumor compound and has a chemo-preventive activity is synthesized and screened. A derivative having enhanced anti-tumor activity and chemo-preventive activity can be synthesized.Type: ApplicationFiled: June 27, 2006Publication date: June 17, 2010Inventors: Hiroyuki Shibata, Yoshiharu Iwabuchi, Hisatsugu Ohori, Hiroyuki Yamakoshi, Yuichi Kakudo