Patents by Inventor Takahiro Yoshimura
Takahiro Yoshimura 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: 8905888Abstract: A simpler configuration for a power transmission element for realizing gear shift functionality and center differential functionality is achieved in a transfer mechanism (3) for a four-wheel drive vehicle by which rotative power input to an input shaft (11) is transmitted to a rear-wheel output shaft (12) and a front-wheel output shaft (13). The power transmission element includes one planetary gear mechanism (20) configured having a group of gears (21 to 23) that are arranged in a single line in the axial direction and are not moved in the axial direction.Type: GrantFiled: June 14, 2011Date of Patent: December 9, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahiro Yoshimura
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Publication number: 20140254750Abstract: A medical X-ray CT photography apparatus body includes a turning arm that supports an X-ray generator and an X-ray detector while the X-ray generator and the X-ray detector are opposed to each other with the subject interposed therebetween, a bracket part that fixedly supports an axial center position of a turning shaft provided in the turning arm, and a support drive part that turns the turning arm about the turning shaft with respect to the bracket part. The medical X-ray CT photography apparatus body also includes a subject chair on which the subject sits, a chair moving mechanism that linearly moves the subject chair in a front-back direction (Y-axis direction) of the subject, and a main-body controller that performs the panoramic X-ray photography by controlling the chair moving mechanism and the support drive part in conjunction with each other.Type: ApplicationFiled: March 6, 2014Publication date: September 11, 2014Applicant: J. MORITA MANUFACTURING CORPORATIONInventors: Takahiro YOSHIMURA, Masakazu SUZUKI, Tomoyuki SADAKANE
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Publication number: 20140250647Abstract: A method for fabricating a piezoelectric device that includes a piezoelectric resonator to be mounted on a solder applied over a surface of a substrate. The piezoelectric resonator includes a metal case and at least a pair of lead terminals extracted from the metal case. The lead terminal includes a first part, a second part, and a third part. The method includes: applying solder cream at a case region and a lead region of a surface of the substrate, the case region corresponding to the metal case, the lead region corresponding to the third part; placing a block solder with a smaller area than an area of the case region at the case region; arranging the metal case of the piezoelectric resonator to the case region, arranging the third part to the lead region; and heating the substrate and the piezoelectric resonator in a reflow furnace.Type: ApplicationFiled: February 26, 2014Publication date: September 11, 2014Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: TAKESHI UCHIDA, TAKAHIRO YOSHIMURA
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Patent number: 8817944Abstract: In an X-ray imaging apparatus that performs X-ray CT imaging, an X-ray generator (13) that generates an X-ray cone beam (BX1) and an X-ray detector (21) that detects the X-ray cone beam (BX1) radiated to an object (specifically, image object (OB)) are revolved for 180 degrees to be opposed to each other with the object being located therebetween. Further, the X-ray generator (13) is moved such that a revolution reference point (CP) that is set on an optical path (CB) of the X-ray cone beam (BX1) goes round of a predetermined oval shape while the X-ray detector (13) and the X-ray generator (21) are revolved for 180 degrees. Setting is made such that a CT image area (CA) to be imaged by the irradiation of the X-ray cone beam (BX1) has an approximately triangular shape through the above-mentioned operation.Type: GrantFiled: August 10, 2011Date of Patent: August 26, 2014Assignees: Nihon University, J. Morita Manufacturing CorporationInventors: Yoshinori Arai, Masakazu Suzuki, Takahiro Yoshimura, Makoto Honjo
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Patent number: 8700241Abstract: Provided is a drive control device for a standby four-wheel drive vehicle having primary drive wheels coupled to a drive source including a motor generator that generates a regenerative braking torque and a clutch device disposed between the drive source and secondary drive wheels to switch a two-wheel drive state using the primary drive wheels and a four-wheel drive state using the primary drive wheels and the secondary drive wheels, including: a transmission torque control portion that causes the clutch device to set a transmission torque between the drive source and the secondary drive wheels to zero so as to allow only the primary drive wheels to perform regenerative braking if a request braking torque of the vehicle is equal to or lower than a predetermined primary-drive-wheel regeneration limit torque during the regenerative braking by the motor generator, the transmission torque control portion causing the clutch device to generate the transmission torque between the drive source and the secondary drivType: GrantFiled: October 19, 2009Date of Patent: April 15, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahiro Yoshimura
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Publication number: 20140073472Abstract: A power transmitting shaft transmits power of a driving force source to driven wheels. A differential gear is connected to an axle of the driven wheels. A ring gear is provided between the power transmitting shaft and the differential gear. A switching mechanism between the driving force source and the power transmitting shaft switches between a four-wheel drive state and a two-wheel drive state. A two-way clutch is provided between the ring gear and the differential gear. The two-way clutch switches between a power transmitting state and a power transmission interrupted state.Type: ApplicationFiled: September 11, 2013Publication date: March 13, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiro YOSHIMURA, Hideki TAMOTO, Masayuki HASHIMOTO, Minoru ONITAKE, Shun OHNO
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Publication number: 20140009235Abstract: An oven controlled crystal oscillator includes a crystal unit, a temperature control circuit, and a circuit board. The temperature control circuit is configured to control a temperature of the crystal unit. The crystal unit includes a flange that projects outward to an entire outer periphery in one end. The circuit board includes a depressed portion in which the flange is partially inserted. The temperature control circuit includes a power transistor, a thermistor as a temperature sensor, and a metal pattern. The power transistor becomes a heat source. The metal pattern commonly connects a ground terminal of the crystal unit, a collector of the power transistor, and a ground terminal of the thermistor. The crystal unit is positioned in a state where the flange is partially inserted in the depressed portion. The crystal unit is connected to the metal pattern.Type: ApplicationFiled: July 2, 2013Publication date: January 9, 2014Inventors: TAKAHIRO YOSHIMURA, JUNICHI ARAI
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Publication number: 20130345011Abstract: A simpler configuration for a power transmission element for realizing gear shift functionality and center differential functionality is achieved in a transfer mechanism (3) for a four-wheel drive vehicle by which rotative power input to an input shaft (11) is transmitted to a rear-wheel output shaft (12) and a front-wheel output shaft (13). The power transmission element includes one planetary gear mechanism (20) configured having a group of gears (21 to 23) that are arranged in a single line in the axial direction and are not moved in the axial direction.Type: ApplicationFiled: June 14, 2011Publication date: December 26, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahiro Yoshimura
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Patent number: 8588364Abstract: A medical X-ray apparatus comprising a supporting part for supporting an X-ray generator and a two-dimensional X-ray detector while interposing an object to be examined therebetween, a radiation area restricting part for restricting a radiation area of X-ray generated from the X-ray generator, and a scan driving part for scanning the object with the X-ray restricted by the radiation area restricting part as X-ray beam and for executing radiography. A direction intersecting with X-ray scan direction is defined as a height direction, the apparatus further comprises a radiation area setting part for setting at least one of both ends of width of the X-ray beam in the height direction at a desired position in accordance with the position of an interested area of the object; and the X-ray beam is irradiated only to the radiation area as set by the radiation area setting part with its beam width in height direction restricted by the radiation area restricting part.Type: GrantFiled: August 19, 2010Date of Patent: November 19, 2013Assignee: J. Morita Manufacturing CorporationInventors: Masakazu Suzuki, Hideki Yoshikawa, Takahiro Yoshimura, Makoto Honjo
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Patent number: 8535189Abstract: A vehicle power transmission device includes: a power generation device that includes a rotating machine electrically controllable in torque; and a power distribution device including three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element, the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are arranged in this order from one end to the other end on a collinear diagram capable of representing the rotation speeds of the three rotating elements on a straight line, the operation state of the rotating machine being controlled to put the first output rotating element aType: GrantFiled: December 15, 2008Date of Patent: September 17, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahiro Yoshimura
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Publication number: 20130211578Abstract: The objective of the present invention is to generate a new tool path quickly by means of a simple calculation formula without calculating an approximated curve and the like.Type: ApplicationFiled: October 26, 2010Publication date: August 15, 2013Applicant: MAKINO MILLING MACHINE CO., LTDInventors: Masashi Tanuma, Mitsunari Oda, Takashi Komori, Takahiro Yoshimura
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Publication number: 20130204426Abstract: A method including a bend angle calculation step of calculating a bend angle ? at each connecting point of a broken line which is obtained by successively connecting a predetermined plurality of machining points P1 to P3 by line segments, an approximation curve derivation step of deriving an approximation curve L5 closer to the connecting point the larger the bend angle ? calculated by the bend angle calculation step, and a tool path generation step of generating a tool path PA7 along the approximation curve L5 derived by the approximation curve derivation step.Type: ApplicationFiled: October 25, 2010Publication date: August 8, 2013Applicant: MAKINO MILLING MACHINE CO., LTDInventors: Masashi Tanuma, Takashi Komori, Takahiro Yoshimura
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Patent number: 8500584Abstract: A vehicle power transmission device includes: a power generation device that includes a rotating machine electrically controllable in torque; and a power distribution device including three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element, the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are arranged in this order from one end to the other end on a collinear diagram capable of representing the rotation speeds of the three rotating elements on a straight line, the operation state of the rotating machine being controlled to put the first output rotating element aType: GrantFiled: December 15, 2008Date of Patent: August 6, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahiro Yoshimura
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Publication number: 20130116080Abstract: It is an object to provide a vehicle differential gear reducing, as compared with the prior art, the magnitude of the inertial force of the drive shafts upon the hitting of the side gears on the differential case to thereby prevent the drive shafts from disengaging from the side gears. The pair of belleville springs 64 and 66 have mutually different resilient characteristics, so that the pair of side gears 52 and 54 are prevented from colliding with the differential case 44 at the same time when the differential gear 30 is in differential rotation. In consequence, the force of collision of the side gear 52 with the differential case 44 acts on the washer 68, the differential case 44, the bearing 40, the shim 60, and the housing 38 so that the spring constant k? of the collided element B buffering the force of collision of the side gear 52 is smaller than the conventional spring constant k?.Type: ApplicationFiled: November 4, 2011Publication date: May 9, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahiro Yoshimura
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Patent number: 8423216Abstract: To provide an engine controller of a hybrid vehicle that can perform a forced driving operation of an engine by performing the same inspection procedure as that of a vehicle using only an engine as a drive source even in the hybrid vehicle. The engine controller includes an operation control unit (ECM) that performs forced driving control of the engine to maintain an operation in a predetermined state suitable for an inspection if a determination that the inspection of the engine by a forced driving operation is requested is made, and an operation state determination unit (EVCM) that determines whether the cold start condition is satisfied or unsatisfied based on information containing at least with or without change from the disconnected state to the connected state of the battery. If the cold start condition is satisfied, the forced driving control of the engine is performed by the operation control unit.Type: GrantFiled: October 12, 2010Date of Patent: April 16, 2013Assignee: Mitsubishi Electric CorporationInventors: Takahiro Yoshimura, Tetsuo Maeda, Takehisa Fukuda, Takeshi Kawakami, Toshio Otsuka
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Patent number: 8300762Abstract: In an X-ray CT imaging, an X-ray generator (11) and a two-dimensional X-ray detector (21) are opposed to each other between an object and are rotated by a rotary shaft (32) around the object. At least one of the rotary shaft supporter (61) and an object holder (40) includes a movement mechanism (42, 65) for moving a supporter (30) for the X-ray generator and the X-ray detector relative to the object. In offset scan CT imaging, the rotation of the supporter by the rotary shaft is performed simultaneously with the relative two-dimensional movement of the rotary shaft by the movement mechanism. In the relative two-dimensional movement, the position of the rotary shaft is moved according to the rotary angle of the supporter along a circular orbit around the center of a CT imaging region in a plane crossing the rotary shaft. Thus, it becomes possible to image a larger region of interest of the object.Type: GrantFiled: November 14, 2008Date of Patent: October 30, 2012Assignee: J. Morita Manufacturing CorporationInventors: Masakazu Suzuki, Takahiro Yoshimura, Makoto Honjo
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Publication number: 20120203416Abstract: Provided is a drive control device for a standby four-wheel drive vehicle having primary drive wheels coupled to a drive source including a motor generator that generates a regenerative braking torque and a clutch device disposed between the drive source and secondary drive wheels to switch a two-wheel drive state using the primary drive wheels and a four-wheel drive state using the primary drive wheels and the secondary drive wheels, including: a transmission torque control portion that causes the clutch device to set a transmission torque between the drive source and the secondary drive wheels to zero so as to allow only the primary drive wheels to perform regenerative braking if a request braking torque of the vehicle is equal to or lower than a predetermined primary-drive-wheel regeneration limit torque during the regenerative braking by the motor generator, the transmission torque control portion causing the clutch device to generate the transmission torque between the drive source and the secondary drivType: ApplicationFiled: October 19, 2009Publication date: August 9, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahiro Yoshimura
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Publication number: 20120039435Abstract: In an X-ray imaging apparatus that performs X-ray CT imaging, an X-ray generator (13) that generates an X-ray cone beam (BX1) and an X-ray detector (21) that detects the X-ray cone beam (BX1) radiated to an object (specifically, image object (OB)) are revolved for 180 degrees to be opposed to each other with the object being located therebetween. Further, the X-ray generator (13) is moved such that a revolution reference point (CP) that is set on an optical path (CB) of the X-ray cone beam (BX1) goes round of a predetermined oval shape while the X-ray detector (13) and the X-ray generator (21) are revolved for 180 degrees. Setting is made such that a CT image area (CA) to be imaged by the irradiation of the X-ray cone beam (BX1) has an approximately triangular shape through the above-mentioned operation.Type: ApplicationFiled: August 10, 2011Publication date: February 16, 2012Applicants: J. Morita Manufacturing Corporation, Nihon UniversityInventors: Yoshinori Arai, Masakazu Suzuki, Takahiro Yoshimura, Makoto Honjo
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Publication number: 20110314960Abstract: A vehicle power transmission device includes: a power generation device that includes a rotating machine electrically controllable in torque; and a power distribution device including three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element, the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are arranged in this order from one end to the other end on a collinear diagram capable of representing the rotation speeds of the three rotating elements on a straight line, the operation state of the rotating machine being controlled to put the first output rotating element aType: ApplicationFiled: December 15, 2008Publication date: December 29, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahiro Yoshimura
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Patent number: 8064569Abstract: An X-ray CT imaging apparatus includes an X-ray generating section, an X-ray image capturing section, a supporting section, a holding section, a rotation driving section, and an X-ray controlling section, wherein the X-ray generating section generates an X-ray cone beam, the X-ray image capturing section detects the X-ray cone beam having passed through an object, the supporting section supports the X-ray generating section and the X-ray image capturing section with the object positioned therebetween, the holding section holds the object, the rotation driving section rotates the supporting section relatively to the object, and the X-ray controlling section alleviates an influence of a high X-ray absorption region, present inside the object, in the X-ray image capturing section by means of a control model formed based upon information on the high X-ray absorption region.Type: GrantFiled: August 31, 2009Date of Patent: November 22, 2011Assignees: Nihon University, J. Morita Manufacturing CorporationInventors: Yoshinori Arai, Takahiro Yoshimura, Hideki Yoshikawa