Patents by Inventor Akihiro Sato
Akihiro Sato 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: 20140210070Abstract: A friction stir welding structure is comprised of a first and a second member integrated into one piece by friction stir welding, and in which a thin section is formed along the friction stir weld section on at least one of either of the first and the second member.Type: ApplicationFiled: August 9, 2012Publication date: July 31, 2014Applicant: Hitachi Automotive Systems, Ltd.Inventors: Toshio Hori, Keiichi Uraki, Masato Higuma, Yujiro Kaneko, Satoshi Hirano, Akihiro Sato
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Publication number: 20140196964Abstract: A vehicle has a motor and an engine each serving as a driving source for running the vehicle, and assembled batteries each capable of supplying an electric power to the motor. The assembled batteries include a high-power assembled battery and a high-capacity assembled battery. The high-power assembled battery is capable of charge and discharge with current relatively larger than that in the high-capacity assembled battery, and the high-capacity assembled battery has energy capacity relatively larger than that of the high-power assembled battery. In running of the vehicle using output from the motor with the engine stopped, the high-capacity assembled battery supplies more electric power to the motor than that in the high-power assembled battery. The high-power assembled battery is placed in a vehicle-inside space accommodating a passenger or baggage, and the high-capacity assembled battery is placed in a vehicle-outside space located on an outer face of a vehicle body.Type: ApplicationFiled: August 30, 2011Publication date: July 17, 2014Inventors: Tsuyoshi Hayashi, Kenji Kimura, Takurou Nakayama, Hirotaka Watanabe, Nobuyoshi Fujiwara, Akihiro Sato
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Patent number: 8771440Abstract: A Ni-based single crystal superalloy according to the invention has, for example, a composition including: 5.0 to 7.0 wt % of Al, 4.0 to 10.0 wt % of Ta, 1.1 to 4.5 wt % of Mo, 4.0 to 10.0 wt % of W, 3.1 to 8.0 wt % of Re, 0.0 to 2.0 wt % of Hf, 2.5 to 8.5 wt % of Cr, 0.0 to 9.9 wt % of Co, 0.0 to 4.0 wt % of Nb, and 1.0 to 14.0 wt % of Ru in terms of weight ratio; and the remainder including Ni and incidental impurities. In addition, the contents of Cr, Hf and Al are preferably set so as to satisfy the equation OP?108. According to the Ni-based single crystal superalloy of the invention, high creep strength can be maintained and the oxidation resistance can be improved.Type: GrantFiled: September 12, 2007Date of Patent: July 8, 2014Assignees: National Institute for Materials Science, IHI CorporationInventors: Akihiro Sato, Hiroshi Harada, Kyoko Kawagishi, Toshiharu Kobayashi, Tadaharu Yokokawa, Yutaka Koizumi, Yasuhiro Aoki, Mikiya Arai, Kazuyoshi Chikugo, Shoju Masaki
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Publication number: 20140179488Abstract: Controlling a hybrid vehicle includes: reducing a rotation speed of a motor generator before a locking apparatus that locks the motor generator is switched from a disengaged condition to an engaged condition; starting to switch the locking apparatus to the engaged condition when the rotation speed decreases to a predetermined operation permission rotation speed; controlling the locking apparatus such that from the start of the switch to the engaged condition onward, the rotation speed decreases from the operation permission rotation speed to an engagement rotation speed with the motor generator in the engaged condition; and controlling the locking apparatus such that a decrease rate of the rotation speed when switching from the disengaged condition to the engaged condition in a low torque operation mode is higher than the decrease rate of the rotation speed when switching from the disengaged condition to the engaged condition in a high torque operation mode.Type: ApplicationFiled: December 23, 2013Publication date: June 26, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuo Hori, Hiroatsu Endo, Isao Sato, Hiroki Kuwamoto, Akihiro Sato, Ryo Watanabe
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Publication number: 20140180522Abstract: A control device of a hybrid vehicle has an engine and an electric motor used as a drive source and an electric storage device supplying electric energy to the electric motor, the control device of a hybrid vehicle selectively performing electric motor running using the electric motor as the drive source and engine running using the engine as the drive source, the control device being configured to raise a rotation speed of the engine by directly injecting fuel into a cylinder of the engine and causing an explosion when the engine is started, and after raising the rotation speed of the engine, the electric motor assisting the raising of the rotation speed of the engine, the control device including a clutch mechanism disposed between the engine and the electric motor, the clutch mechanism separating the engine and the electric motor from each other during the electric motor running, after raising the rotation speed of the engine, the electric motor assisting the raising of the rotation speed of the engine viaType: ApplicationFiled: August 11, 2011Publication date: June 26, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yukihiko Ideshio, Susumu Kojima, Naoki Nakanishi, Akihiro Sato
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Publication number: 20140166379Abstract: A vehicle has a motor and an engine each serving as a driving source for running the vehicle, and assembled batteries each capable of supplying an electric power to the motor. The assembled batteries include a high-power assembled battery and a high-capacity assembled battery. The high-power assembled battery is capable of charge and discharge with a current relatively larger than that in the high-capacity assembled battery, and the high-capacity assembled battery has an energy capacity relatively larger than that of the high-power assembled battery. In running of the vehicle using an output from the motor with the engine stopped, the high-capacity assembled battery supplies a more electric power to the motor than that in the high-power assembled battery. The high-power assembled battery is placed in a riding space where a passenger rides, and the high-capacity assembled battery is placed in a luggage space different from the riding space.Type: ApplicationFiled: August 30, 2011Publication date: June 19, 2014Inventors: Kenji Kimura, Akihiro Sato
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Patent number: 8734716Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.Type: GrantFiled: March 11, 2011Date of Patent: May 27, 2014Assignee: National Institute for Materials ScienceInventors: Hiroshi Harada, Yuefeng Gu, Chuanyong Cui, Makoto Osawa, Akihiro Sato, Toshiharu Kobayashi
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Publication number: 20140129067Abstract: A control device of a vehicle includes: an engine; a connection/disconnection device configured to connect/interrupt the engine; a rotating machine disposed to enable transmission of drive power to the wheels; and a running position selection device, the control device including a first manual mode selected by performing a deceleration increasing operation by a driver for increasing vehicle deceleration while the automatic running position is selected and a second manual mode selected by performing a deceleration increasing operation by a driver for increasing the vehicle deceleration while the manual running position is selected, while the vehicle is running with the engine interrupted from the wheels, if the first manual mode is selected, the vehicle deceleration being generated only by the rotating machine, and if the second manual mode is selected, the connection/disconnection device being put into the connected state to generate the vehicle deceleration at least by the engine.Type: ApplicationFiled: April 27, 2011Publication date: May 8, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomoaki Furukawa, Takeshi Kanayama, Tetsuo Hori, Tomoyuki Maruyama, Akiko Nishimine, Takeshi Miyagawa, Ryoki II, Koji Hayashi, Norihiro Yamamura, Akihiro Sato
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Patent number: 8714562Abstract: A lip type end face sealing device having excellent sealability to different kinds of liquids on both sides in the axial direction and having excellent durability. A case is tight fitted to an inner peripheral face of a housing and includes case members. One pair of seal lips is integrally fitted to inner peripheral flange parts, positioned oppositely each other in the axial direction, and opened in a tapered shape. One pair of the seal lips is slidably contacted with flange parts of slingers tight fitted to an outer periphery of a rotary shaft. Pressure in seal internal spaces between the seal lips is released through a vent hole.Type: GrantFiled: August 18, 2010Date of Patent: May 6, 2014Assignee: NOK CorporationInventors: Takehiro Nakagawa, Akihiro Sato, Tetsuo Tasaki, Hiromi Takahashi, Junya Hoshi, Hiroshi Okubo, Masahiro Anzai
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Patent number: 8678969Abstract: A vehicular drive system provided with an electric motor for generating a drive force to be transmitted to drive wheels, includes: the electric motor including an output rotary member having opposite end portions from which the drive force of the electric motor is transmitted to the drive wheels; two power connecting/disconnecting devices respectively configured to selectively connect and disconnect each of the opposite end portions of the output rotary member to and from the drive wheels; and the two power connecting/disconnecting devices being controlled to selectively connect the opposite end portions of the output rotary member to the drive wheels, for thereby changing a ratio of rotating speeds of the drive wheels to an operating speed of the electric motor.Type: GrantFiled: March 23, 2011Date of Patent: March 25, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Akihiro Sato, Hiroyuki Ishii
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Publication number: 20140077941Abstract: A vehicular indicator device for a hybrid vehicle which is provided with vehicle drive power sources in the form of an engine and an electric motor and which is driven in one of a plurality of vehicle drive modes including an EV drive mode, a series HV drive mode and a parallel HV drive mode that is automatically selected according to a vehicle drive power, said indicator device being configured to indicate the selected vehicle drive mode and said vehicle drive power, the vehicular indicator device being configured to indicate a running state of the hybrid vehicle as represented by said vehicle drive power and said selected vehicle drive mode, in a two-dimensional coordinate system on a display screen, which coordinate system is defined by said vehicle drive power and said selected vehicle drive mode.Type: ApplicationFiled: May 10, 2011Publication date: March 20, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihiro Yamamura, Koji Hayashi, Takeshi Kanayama, Tetsuo Hori, Tomoyuki Maruyama, Akiko Nishimine, Takeshi Miyagawa, Ryoki II, Tomoaki Furukawa, Akihiro Sato
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Publication number: 20140078267Abstract: Every frame regarding an input video signal is changed into a sequence of subframes. Subframe data is generated from the input video signal while first and second tables are alternately used. The first and second tables are designed so that a number of subframes assigned a pixel activated state increases each time a drive gradation related to the input video signal increases by 1. According to the first table, a subframe newly assigned the pixel activated state is one following the subframe or subframes which have already been assigned the pixel activated state when the drive gradation increases from an odd number to a next even number. According to the second table, a subframe newly assigned the pixel activated state is one preceding the pixel-activated-state subframe or subframes in that case. A display device is driven in response to the generated subframe data.Type: ApplicationFiled: August 14, 2013Publication date: March 20, 2014Applicant: JVC KENWOOD CorporationInventor: Akihiro Sato
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Publication number: 20140051546Abstract: A control apparatus for a hybrid vehicle includes: engine starting means for starting an engine when a need for switching to a 4-wheel drive mode has been forecasted, the hybrid vehicle having a series HV drive mode in which the hybrid vehicle is run with a second electric motor, in the released state of a connecting/disconnecting device, while a first electric motor is operated with a drive force of said engine to generate an electric energy, the control apparatus further including, as said engine starting means, series HV drive controlling means for starting said engine and enlarging a series HV drive mode region for running the hybrid vehicle in said series HV drive mode, so as to cover a portion or an entirety of an original EV drive mode region for running the hybrid vehicle in said EV drive mode, when the need for switching to said 4-wheel drive mode has been forecasted.Type: ApplicationFiled: March 24, 2011Publication date: February 20, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomoyuki Maruyama, Norihiro Yamamura, Akiko Nishimine, Ryoki II, Tomoaki Furukawa, Takeshi Kanayama, Tetsuo Hori, Koji Hayashi, Takeshi Miyagawa, Akihiro Sato
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Publication number: 20140004987Abstract: A vehicular drive system provided with an electric motor for generating a drive force to be transmitted to drive wheels, includes: the electric motor including an output rotary member having opposite end portions from which the drive force of the electric motor is transmitted to the drive wheels; two power connecting/disconnecting devices respectively configured to selectively connect and disconnect each of the opposite end portions of the output rotary member to and from the drive wheels; and the two power connecting/disconnecting devices being controlled to selectively connect the opposite end portions of the output rotary member to the drive wheels, for thereby changing a ratio of rotating speeds of the drive wheels to an operating speed of the electric motor.Type: ApplicationFiled: March 23, 2011Publication date: January 2, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiro Sato, Hiroyuki Ishii
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Publication number: 20130345341Abstract: The present invention relates to modified cellulose nanofibers obtained by neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives. Moreover, the present invention relates to a resin composition containing the aforementioned modified cellulose nanofibers and a molding resin, and to a molded body obtained by molding the resin composition. Furthermore, the present invention relates to a production method of modified cellulose nanofibers comprising neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives.Type: ApplicationFiled: March 12, 2012Publication date: December 26, 2013Applicants: SEIKO PMC CORPORATION, DIC CORPORATIONInventors: Tetsuya Harada, Satoshi Katano, Akihiro Sato, Kazuya Miyamoto
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Patent number: 8562080Abstract: A brake system provided with a brake booster using intake negative pressure of an engine for boosting a brake operating force for a vehicle. A requested braking force is detected base on an operating amount of a brake pedal, and when the requested braking force is less than a threshold value, a master cylinder pressure prevailing in the master cylinder using an operating force boosted by the brake booster is supplied to the wheel cylinder. On the other hand, when the requested braking force is greater than or equal to the threshold value, brake fluid pressure having been boosted by a pump is supplied to the wheel cylinder. The threshold value is set to a value that becomes greater the larger the negative pressure inside the brake booster.Type: GrantFiled: March 12, 2009Date of Patent: October 22, 2013Assignee: Hitachi, Ltd.Inventors: Hideki Sekiguchi, Toshiya Oosawa, Satoru Watanabe, Tomoyuki Murakami, Akihiro Sato, Motohiro Higuma
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Publication number: 20130253744Abstract: A hybrid drive system configured to selectively establish one of a first drive mode in which a first motor/generator MG1 is operated with a drive force of an engine, to generate an electric energy and in which a vehicle drive force is generated primarily by a second motor/generator MG2, and a second drive mode in which the vehicle drive force is generated by the engine, and at least one of the first motor/generator MG1 and second motor/generator MG2 is operated to generate an assisting vehicle drive force, as needed, and further configured such that an amount of a working oil to be supplied to the first motor/generator MG1 is larger in the first drive mode than in the second drive mode, permitting sufficient cooling of the electric motor depending upon a selected one of the vehicle drive modes.Type: ApplicationFiled: November 4, 2010Publication date: September 26, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akiko Nishimine, Koji Hayashi, Takeshi Kanayama, Tetsuo Hori, Tomoyuki Maruyama, Takeshi Miyagawa, Ryoki Ii, Tomoaki Furukawa, Norihiro Yamamura, Akihiro Sato
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Publication number: 20130253743Abstract: A vehicle control apparatus configured to selectively establish one of a first drive state in which a vehicle drive force is generated primarily by a second motor/generator operated with an electric energy supplied from an electric-energy storage device while an engine is placed in a rest state, and a second drive state in which a first motor/generator is operated with a drive force of the engine, to generate an electric energy and in which the vehicle drive force is generated primarily by the second motor/generator operated with at least the electric energy generated by the first motor/generator. The vehicle control apparatus is further configured such that the vehicle drive force generated in the second drive state at a given value of an accelerator pedal operation amount ?acc is larger than that generated in the first drive state.Type: ApplicationFiled: November 4, 2010Publication date: September 26, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomoyuki Maruyama, Takeshi Miyagawa, Tomoaki Furukawa, Ryoki Ii, Akihiro Sato, Norihiro Yamamura, Akiko Nishimine, Takeshi Kanayama, Tetsuo Hori, Koji Hayashi
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Publication number: 20130241977Abstract: A signal processor converts an input 3D image signal into a signal in which a left-eye signal and right-eye signal are rearranged temporally alternately. A driver of a liquid crystal display element includes a sub-frame data generator configuring all the sub-frames with step bit pulses and generating sub-frame data by using a drive gradation table in which the last sub-frame reaches a drive state when a drive gradation is “1” and the number of sub-frames reaching the drive state is increased one by one toward ahead of a sub-frame which has already reached the drive state, every time the drive gradation is increased by one. The liquid crystal display element is driven by the driver. An illumination optical system causes illumination light to enter into the liquid crystal display element. A projection lens projects modulated light emitted from the liquid crystal display element.Type: ApplicationFiled: May 7, 2013Publication date: September 19, 2013Applicant: JVC KENWOOD CORPORATIONInventors: Naoya OKAMOTO, Hiroyuki TAKADA, Takeshi MAKABE, Akihiro SATO
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Publication number: 20130226387Abstract: A vehicle hybrid drive device having an EV running mode enabling a vehicle to run only with a second rotating machine used as a drive power source while an engine is disconnected from a drive power transmission path, a series HEV running mode enabling the vehicle to run only with the second rotating machine used as the drive power source while a first rotating machine is rotationally driven to generate electricity by the engine disconnected from the drive power transmission path, and a parallel HEV running mode enabling the vehicle to run with the engine and at least one of the first and second rotating machines used as the drive power sources while the engine is connected to the drive power transmission path. If a driver desires power-performance-oriented running or fuel-efficiency-oriented running, the range for selecting the series HEV running mode is made narrower or wider, respectively, than usual.Type: ApplicationFiled: November 4, 2010Publication date: August 29, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Hayashi, Takeshi Kanayama, Tetsuo Hori, Ryoki Ii, Tomoaki Furukawa, Akiko Nishimine, Takeshi Miyagawa, Tomoyuki Maruyama, Norihiro Yamamura, Akihiro Sato