Patents by Inventor Isao Sato
Isao 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: 20150285695Abstract: A load cell includes a flexure element having a Roberval mechanism in which the respective ends of a pair of top and bottom parallel beams including a thin section are integrated in a fixed portion and in a movable portion, and a stopper for preventing an overload disposed between the pair of the top and bottom parallel beams by being fixed to the fixed portion. The front portion of the stopper is disposed in a concave portion for engaging the stopper formed on the inner side surface of the movable portion and extending in the width direction, and the front portion of the stopper of which a width is larger than the movable portion projects outwardly in the width direction of the movable portion.Type: ApplicationFiled: November 2, 2012Publication date: October 8, 2015Inventor: Isao Sato
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Publication number: 20150217758Abstract: A vehicle includes: an engine; a first electric motor capable of inputting or outputting power; a power split mechanism including a sun gear, a ring gear and a planetary carrier rotatably revolvably supporting pinion gears meshing with the sun and ring gears. The planetary carrier, the sun gear and the ring gear are respectively coupled to an engine output shaft, a first electric motor rotary shaft and a drive wheel. The vehicle further includes a second electric motor capable of inputting or outputting power to or from the drive wheel; and a control device setting an engine operation range determined by a limit value of a rotation speed of the pinion gears. To increase durability of the pinion gears the limit value is higher at a high engine rotation and low vehicle speed side than at a low engine rotation and high vehicle speed side. Engine operation is controlled on the basis of the set engine operation range.Type: ApplicationFiled: November 14, 2013Publication date: August 6, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki Saiko, Isao Sato, Ryo Watanabe
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Publication number: 20150088350Abstract: A drive control device for a hybrid vehicle provided with: a differential device which includes a first differential mechanism and a second differential mechanism and which has four rotary elements; and an engine, a first electric motor, a second electric motor and an output rotary member which are respectively connected to said four rotary elements, and wherein one of said four rotary elements is constituted by a rotary component of said first differential mechanism and a rotary component of said second differential mechanism which are selectively connected to each other through a clutch, and one of the rotary components of said first and second differential mechanisms which are selectively connected to each other through said clutch is selectively fixed to a stationary member through a brake, said drive control device comprising: a substitutive drive control portion configured to implement, in the event of a failure of said first electric motor, a substitutive drive control wherein said engine is operated tType: ApplicationFiled: March 21, 2012Publication date: March 26, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshiaki Tamachi, Isao Sato, Tomohito Ono
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Publication number: 20150022196Abstract: A current sensor includes a folded-shaped current path including a pair of arm portions extending in parallel with each other, and a pair of magnetoelectric conversion elements provided so as to sandwich therebetween a symmetric axis passing between the pair of arm portions, the pair of magnetoelectric conversion elements being used for detecting magnetism caused by a current passing through the pair of arm portions, wherein a half-bridge circuit in which the pair of magnetoelectric conversion elements is series-connected and a signal is able to be extracted from a connection point between the pair of magnetoelectric conversion elements is formed, and sensitivity axes of the pair of magnetoelectric conversion elements are oriented in a same direction and sensitivity-influencing axes of the pair of magnetoelectric conversion elements are oriented in a same direction.Type: ApplicationFiled: October 8, 2014Publication date: January 22, 2015Inventors: Hiroyuki HEBIGUCHI, Isao SATO
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Publication number: 20150011347Abstract: A vehicle drive device has an outer rotor type electric motor with a rotor disposed on an outer circumferential side of a stator, comprising: a first power transmission path coupling an inside of the rotor and drive wheels; and a second power transmission path coupling an outside of the rotor and the drive wheels, the first power transmission path and the second power transmission path having different gear ratios, one power transmission path of the first power transmission path and the second power transmission path being coupled to the drive wheels to make a gear change.Type: ApplicationFiled: March 2, 2012Publication date: January 8, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoru Takahashi, Yasushi Kobiki, Isao Sato, Takeshi Miyagawa, Hiroaki Kiyokami
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Patent number: 8864140Abstract: A sealing structure using a liquid gasket, having a liquid gasket interposed in the form of a thin film between mating surfaces of a first member and a second member, thereby preventing the movement of oil via the mating surfaces, the sealing structure, includes at oil-side end portions of the mating surfaces, a gasket lump portion that is formed of an excess of the thin-film liquid gasket squeezed out from the mating surfaces, and an oil-shielding portion that covers a boundary portion where the gasket lump portion and the first member come into contact, thereby preventing a flow of the oil from directly striking the boundary portion, and is provided on an oil-flow upstream side from the boundary portion.Type: GrantFiled: August 23, 2010Date of Patent: October 21, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Iwase, Hiroshi Hata, Yuji Yasuda, Toshihiro Hirao, Yoshiteru Hagino, Katsuya Sasaki, Isao Sato, Sohei Murata, Masahiro Kojima, Masataka Kitte
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Publication number: 20140235402Abstract: A vehicle drive device comprises: an electric motor as a drive force source for running, the vehicle drive device further comprising one end portion of an output rotating member of the electric motor being coupled to first drive wheels via a first power connecting/disconnecting device selectively interrupting power transmission, the other end portion of the output rotating member being coupled to second drive wheels through a second power connecting/disconnecting device selectively interrupting power transmission at a shift ratio different from a shift ratio between the one end portion and the first drive wheels, and the first power connecting/disconnecting device and the second power connecting/disconnecting device being alternatively put into a power transmittable state of transmitting power so as to shift gears between the first drive wheels or the second drive wheels and the electric motor.Type: ApplicationFiled: September 20, 2011Publication date: August 21, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomoya Matsubara, Isao Sato, Satoru Takahashi
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Patent number: 8801568Abstract: 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: GrantFiled: December 23, 2013Date of Patent: August 12, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuo Hori, Hiroatsu Endo, Isao Sato, Hiroki Kuwamoto, Akihiro Sato, Ryo Watanabe
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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: 20130307534Abstract: A current sensor includes first and second magnetic sensors that are placed around a current line through which a current flows so that the current line is positioned therebetween, and that detect an induction field generated by the current. Each of the first and second magnetic sensors has a main sensitivity axis and a sub-sensitivity axis. The direction of the main sensitivity axis of each of the first and second magnetic sensors is oriented in a direction that is not orthogonal to the direction of the induction field. The directions of the main sensitivity axes of the first and second magnetic sensors are oriented in the same direction and the directions of the sub-sensitivity axes are oriented in the same direction, or the directions of the main sensitivity axes are oriented in opposite directions and the directions of the sub-sensitivity axes are oriented in opposite directions.Type: ApplicationFiled: July 25, 2013Publication date: November 21, 2013Applicant: ALPS GREEN DEVICES CO., LTD.Inventors: Hiroyuki HEBIGUCHI, Isao SATO, Takashi FUJISAKI, Mitsuo ARATONO, Akira TAKAHASHI, Masato NAKAMURA
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Publication number: 20110221294Abstract: A breather device is provided at a housing case housing a rotating electric machine, for adjusting a pressure inside the housing case. The rotating electric machine includes a stator core formed by stacking a plurality of steel plates. The breather device communicates with an inside of the housing case by a gap between the steel plates.Type: ApplicationFiled: November 21, 2008Publication date: September 15, 2011Applicant: Toyota Jidosha Kabushiki KaishaInventors: Isao Sato, Yuji Iwase
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Patent number: 7914854Abstract: An SiO2-based film-forming composition giving a protective film which, after impurity diffusion, can be easily stripped off and which has a higher protective effect. The film-forming composition is one for forming a protective film which in the diffusion of an impurity into a silicon wafer, serves to partly prevent the impurity diffusion. This film-forming composition comprises a high-molecular silicon compound and a compound having a protective element which undergoes covalent bonding to the element to be diffused in the impurity diffusion and thereby comes to have eight valence electrons. The protective element is preferably gallium or aluminum when phosphorus is used as the element to be diffused, and is preferably tantalum, niobium, arsenic, or antimony when boron is used as the diffusion element.Type: GrantFiled: December 19, 2006Date of Patent: March 29, 2011Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Toshiro Morita, Isao Sato
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Patent number: 7906578Abstract: To provide a room-temperature-curable composition which comprises an oxyalkylene polymer containing hydrolyzable silicon groups, which has ensured working time and curing rate required for operation, and which can provide a cured article having good tensile properties. A room-temperature-curable composition comprising a polymer (a1) and a curing catalyst (b), wherein the polymer (a1) is a linear oxyalkylene polymer having at least two hydrolyzable silicon groups of the formula (1), at different molecular terminals: —Si(OR)3??(1) wherein each R independently represents a C1-6 organic group.Type: GrantFiled: June 20, 2008Date of Patent: March 15, 2011Assignee: Asahi Glass Company, LimitedInventors: Isao Sato, Yoshitaka Sunayama, Genichirou Enna
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Publication number: 20110049814Abstract: A sealing structure using a liquid gasket, having a liquid gasket interposed in the form of a thin film between mating surfaces of a first member and a second member, thereby preventing the movement of oil via the mating surfaces, the sealing structure, includes at oil-side end portions of the mating surfaces, a gasket lump portion that is formed of an excess of the thin-film liquid gasket squeezed out from the mating surfaces, and an oil-shielding portion that covers a boundary portion where the gasket lump portion and the first member come into contact, thereby preventing a flow of the oil from directly striking the boundary portion, and is provided on an oil-flow upstream side from the boundary portion.Type: ApplicationFiled: August 23, 2010Publication date: March 3, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji IWASE, Hiroshi HATA, Yuji YASUDA, Toshihiro HIRAO, Yoshiteru HAGINO, Katsuya SASAKI, Isao SATO, Sohei MURATA, Masahiro KOJIMA, Masataka KITTE
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Patent number: 7630537Abstract: A 3-D shape measurement apparatus for grasping the state of an object with ease and accuracy is provided.Type: GrantFiled: June 3, 2004Date of Patent: December 8, 2009Assignees: Sumitomo Osaka Cement Co., Ltd., Keio UniversityInventors: Isao Sato, Hirooki Aoki, Masato Nakajima, Kazuhiro Mimura, Yasuhiro Takemura, Kei Katou, Toshiharu Takesue
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Patent number: 7545279Abstract: A condition analysis apparatus capable of grasping the condition of an object easily and accurately is provided. The condition analysis apparatus 1 includes a three-dimensional sensor 10 for measuring sampling-point-moves in the height direction of an object 2 existing in a target area at a plurality of sampling points, and area definition means 22 for defining an area where a plurality of the sampling-point-moves are in the generally same phase. The thus constructed condition analysis apparatus 1 can grasp the condition of the object 2 easily and accurately. Preferably, the condition analysis apparatus 1 includes information output means 40 for outputting information of an area including the area defined by the area definition means 22.Type: GrantFiled: June 3, 2004Date of Patent: June 9, 2009Assignees: Sumitomo Osaka Cement Co., Ltd., Keio UniversityInventors: Isao Sato, Tomofumi Nishiura, Masato Nakajima, Kazuhiro Mimura, Yasuhiro Takemura, Kei Katou, Toshiharu Takesue
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Patent number: 7498520Abstract: A silica-based interlayer insulating layer having a low dielectric constant is formed with SOG material on a substrate, in which a wiring-layer forming space is then formed. If necessary, a UV ray irradiation is performed under an oxidizing atmosphere. A Si—OH bond is formed on a surface of the insulating layer. A monomolecular layer film is then adhered to the inner surface of the space, which is then modified to be a catalyst with a solution containing Pd compound. On the catalyst monomolecular layer, a copper-diffusion-resistant film is formed by electroless plating, on which a copper plate is then formed as a wiring layer.Type: GrantFiled: October 18, 2004Date of Patent: March 3, 2009Assignees: Waseda University, Tokyo Ohka Kogyo Co., Ltd.Inventors: Tetsuya Osaka, Tokihiko Yokoshima, Isao Sato, Akira Hashimoto, Yoshio Hagiwara
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Publication number: 20090014845Abstract: An SiO2-based film-forming composition giving a protective film which, after impurity diffusion, can be easily stripped off and which has a higher protective effect. The film-forming composition is one for forming a protective film which in the diffusion of an impurity into a silicon wafer, serves to partly prevent the impurity diffusion. This film-forming composition comprises a high-molecular silicon compound and a compound having a protective element which undergoes covalent bonding to the element to be diffused in the impurity diffusion and thereby comes to have eight valence electrons. The protective element is preferably gallium or aluminum when phosphorus is used as the element to be diffused, and is preferably tantalum, niobium, arsenic, or antimony when boron is used as the diffusion element.Type: ApplicationFiled: December 19, 2006Publication date: January 15, 2009Applicant: TOKYO OHKA KOGYO CO., LTD.Inventors: Toshiro Morita, Isao Sato
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Patent number: 7443379Abstract: An input device contains a resistance-element series formed by series-connected resistance elements, low resistors opposing the resistance elements, an operating object which brings one of the low resistors into contact with one of the resistance elements and changes the contact area therebetween, an output point at the midpoint between resistance elements, and a controller. When the resistance element and low resistor are not in contact, the input device enters a sleep mode in which the resistance-element series or low resistors have a high potential and the other a low potential. In the sleep mode, determination that the operating object has been operated occurs when a change in voltage or current on the low potential side is detected. A voltage is applied across ends of the resistance-element series, and the device enters a detection mode in which the output is based on the contact area change.Type: GrantFiled: August 2, 2004Date of Patent: October 28, 2008Assignee: Alps Electric Co., Ltd.Inventors: Junichi Inamura, Isao Sato
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Publication number: 20080262143Abstract: To provide a room-temperature-curable composition which comprises an oxyalkylene polymer containing hydrolyzable silicon groups, which has ensured working time and curing rate required for operation, and which can provide a cured article having good tensile properties. A room-temperature-curable composition comprising a polymer (a1) and a curing catalyst (b), wherein the polymer (a1) is a linear oxyalkylene polymer having at least two hydrolyzable silicon groups of the formula (1), at different molecular terminals: —Si(OR)3 ??(1) wherein each R independently represents a C1-6 organic group.Type: ApplicationFiled: June 20, 2008Publication date: October 23, 2008Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Isao SATO, Yoshitaka SUNAYAMA, Genichirou ENNA