Patents by Inventor Masashi Hori
Masashi Hori 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: 20130278267Abstract: According to one embodiment of the present invention, an MRI apparatus (20) includes a charge/discharge controlling unit (56, 126, 128), a judging unit (102, 132, 134, 136, 140 and 142) and a condition restricting unit (104). The charge/discharge controlling unit includes a charge/discharge element (126), receives electric power, and charges the charge/discharge element (126) by using the received electric power. The charge/discharge controlling unit also supplies a gradient magnetic field coil (26) with electric power discharged from the charge/discharge element (126) at a time of performance of magnetic resonance imaging. The judging unit judges whether capacitance of the charge/discharge element (126) falls below a threshold value or not. The condition restricting unit (104) restricts electric power amount supplied to the gradient magnetic field coil (26) by restricting conditions of an imaging sequence, when the capacitance of the charge/discharge element (126) falls below the threshold value.Type: ApplicationFiled: April 16, 2013Publication date: October 24, 2013Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Masashi HORI, Motohiro MIURA, Motohisa YOKOI, Sho KAWAJIRI
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Patent number: 8554413Abstract: A VGRS device checks whether assist control of an EPS device for assisting steering operation of a steering wheel is being stopped. If the assist control of the EPS device is being stopped, a speed increase ratio is determined so that the rotation angle of the output shaft is less than the rotation angle of the input shaft. A VGRS motor is controlled and driven based on a determined speed increase ratio. Thus, steering operation of the steering wheel can be controlled appropriately so that the steering operation of the steering wheel can be continued with relatively small torque. It is less likely that a driver will erroneously feel that the steering wheel is locked.Type: GrantFiled: June 15, 2011Date of Patent: October 8, 2013Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Yasuhiko Mukai, Hideki Kabune, Kouichi Nakamura, Masashi Hori
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Patent number: 8548190Abstract: A composite speaker is provided capable of obtaining larger sound output than that of a conventional flat panel speaker and flat speaker when input with an audio signal of the same strength.Type: GrantFiled: June 4, 2010Date of Patent: October 1, 2013Assignee: FPS Inc.Inventors: Masashi Hori, Kuniyuki Kobayashi, Hiromi Saotome, Masahiro Iwata
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Patent number: 8542862Abstract: A flat acoustic transducer (100) includes a permanent magnet (10) and a magnetic member (20), which are arranged adjacent to each other with a predetermined interval, a flat vibrating membrane (30), provided facing the permanent magnet (10) and the magnetic member (20), and at least one coil (40), fixed to the vibrating membrane (30). In the flat acoustic transducer (100), an electrical signal is applied to the coil (40), to obtain vibration force (F) on the vibrating membrane (30) by way of a magnetic flux ? generated between a magnetic pole face (12) of the permanent magnet (10) and the magnetic member (20), a step (50) is provided between the magnetic pole face (12) and the upper face (22) of the magnetic member (20), while at least part of a winding (42) of the coil (40) at the time of no application of an electrical signal is arranged inside the step (50).Type: GrantFiled: November 30, 2009Date of Patent: September 24, 2013Assignee: FPS Inc.Inventors: Fumihito Meguro, Tomomi Nakatsuka, Masashi Hori, Hiromi Sotome, Masahiro Iwata, Kuniyuki Kobayashi
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Patent number: 8433477Abstract: In a steering control apparatus, a worm gear is configured to have a lead angle for a self-lock operation, by which a worm wheel is allowed to rotate by rotation of a worm but the worm is not allowed to rotate by rotation of the worm wheel. Thus, a lock mechanism need not be provided separately from a gear mechanism and the apparatus is reduced in entire size. A VGRS control part checks whether the worm gear has a self-lock failure, which disables the self-lock operation. If the worm gear has the self-lock failure, idling suppression processing is performed to suppress idling of a steering wheel. Thus, even when the self-lock failure arises, the steering wheel is suppressed from idling.Type: GrantFiled: August 4, 2011Date of Patent: April 30, 2013Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Yasuhiko Mukai, Hideki Kabune, Kouichi Nakamura, Masashi Hori
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Patent number: 8365860Abstract: A steering control apparatus acquires vibration torque, which is generated by vibration of a gear mechanism when a steering wheel is operated at a steering angle. By setting the acquired vibration torque as a torque difference, an EPS motor current command value is corrected based on the torque difference thereby to calculate a corrected EPS motor current command value. Rattling and vibration caused in the gear mechanism are suppressed from being transferred to the steering wheel through an input shaft so that a driver is released from uncomfortable feeling.Type: GrantFiled: June 8, 2011Date of Patent: February 5, 2013Assignee: Denso CorporationInventors: Yasuhiko Mukai, Hideki Kabune, Koichi Nakamura, Masashi Hori
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Publication number: 20130009641Abstract: According to one embodiment, a control device (30) of a magnetic resonance imaging apparatus (20A) includes a condition setting unit (100) and a judging unit (102). The condition setting unit sets an imaging sequence performed by the magnetic resonance imaging apparatus based on conditions of the imaging sequence. The judging unit calculates a value of electric current supplied to a gradient magnetic field coil (26) of the magnetic resonance imaging apparatus based on the conditions of the imaging sequence, calculates a value of voltage applied to the gradient magnetic field coil based on “a mutual inductance by which the gradient magnetic field coil causes mutual induction” so that electric current flowing the gradient magnetic field coil becomes equal to the value of electric current calculated, and judges whether the imaging sequence is practicable or not based on the value of voltage.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Masashi HORI, Motohiro Miura, Hiroshi Kusahara, Yutaka Machii, Yoshimori Kassai
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Publication number: 20120330511Abstract: In a steering control system, an ECU calculates a basic transfer ratio in accordance with a steering angle detected by a steering angle sensor or a corrected transfer ratio by correcting the calculated basic transfer ratio in accordance with the position of a rack. The corrected transfer ratio decreases when the rack moves from a predetermined first position close to one end of a movable range, to the one end or from a predetermined second position close to the other end of the movable range, to the other end. The ECU determines either the basic transfer ratio or the corrected transfer ratio as the transfer ratio in accordance with the position of the rack. The ECU controls an actuator for a variable gear ratio system in accordance with the transfer ratio.Type: ApplicationFiled: June 15, 2012Publication date: December 27, 2012Applicants: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Hisashi KAWASE, Masashi Hori, Yasuhiko Mukai
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Publication number: 20120330510Abstract: In a steering control system, an ECU calculates a basic assist torque in accordance with a steering torque detected by a torque sensor, and a corrected assist torque by correcting the calculated basic assist torque in accordance with the position of a rack by making corrections so that the basic assist torque decreases when the rack moves from a predetermined first position, which is close to a first end of a movable range, to the first end or from a predetermined second position, which is close to a second end of the movable range, to the second end. The ECU determines either the basic assist torque or the corrected assist torque as the assist torque in accordance with the position of the rack. The ECU controls the drive of an actuator in accordance with the determined assist torque.Type: ApplicationFiled: June 15, 2012Publication date: December 27, 2012Applicants: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Hisashi KAWASE, Masashi HORI, Yasuhiko MUKAI
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Publication number: 20120263338Abstract: A composite speaker is provided capable of obtaining larger sound output than that of a conventional flat panel speaker and flat speaker when input with an audio signal of the same strength.Type: ApplicationFiled: June 4, 2010Publication date: October 18, 2012Applicant: C/O FPS INC.Inventors: Masashi Hori, Kuniyuki Kobayashi, Hiromi Saotome, Masahiro Iwata
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Patent number: 8272473Abstract: An input gear rotates integrally with an input shaft, and an output gear rotates integrally with an output shaft. Pinion gears are rotatably supported by pinion gear shaft members, respectively, and are meshed with both of the input gear and the output gear. An inner end part of each pinion gear shaft member is fitted to an inner peripheral wall of a corresponding primary hole of an inner ring member, and an outer end part of each pinion gear shaft member is fitted to an inner peripheral wall of a corresponding secondary hole of an outer ring member.Type: GrantFiled: July 13, 2010Date of Patent: September 25, 2012Assignee: Denso CorporationInventors: Masashi Hori, Nobuhiko Uryu
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Patent number: 8188738Abstract: In a magnetic resonance imaging apparatus, an event generating substrate included in a sequence control unit generates an event code to make an instruction for switching a receiving path during a scan based on scanning conditions that are set in advance of the scan. When the event code is generated, a radio-frequency switch-matrix substrate of a gantry unit switches the receiving path that connects a receiving coil and a receiving circuit.Type: GrantFiled: July 1, 2009Date of Patent: May 29, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Masashi Hori, Akio Mori, Mitsuo Takagi
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Patent number: 8187038Abstract: A card edge connector for electrically connecting harnesses to contact electrodes that are located in different positions on a surface of an electronic substrate in an insertion direction includes a housing, harness terminals, and relay terminals. The housing defines a substrate insertion hole for receiving the electronic substrate. The harness terminals are separately connected to the harnesses and located in different positions in a height direction perpendicular to the insertion direction. The relay terminals separately connect the harness terminals to the contact electrodes upon insertion of the electronic substrate into the substrate insertion hole.Type: GrantFiled: July 20, 2010Date of Patent: May 29, 2012Assignee: DENSO CORPORATIONInventors: Takashi Kamiya, Taku Iida, Yoshio Hironaka, Toshihiro Miyake, Masashi Hori
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Publication number: 20120111658Abstract: A vehicular steering control apparatus has a steering direction control device and a reaction force application device. The steering direction control device controls a steering angle of steered wheels by controlling a steering direction control motor based on a steering wheel angle. The reaction force application unit is provided more closer to a steering wheel than the steering direction control device is and has a differential reduction unit and a reaction force application motor. The differential reduction unit transfers rotation of an input shaft to an output shaft. The reaction force application motor drives the differential reduction unit. The steering wheel and the steered wheels are normally linked mechanically, so that no fail-safe device is needed.Type: ApplicationFiled: November 2, 2011Publication date: May 10, 2012Applicants: Nippon Soken, Inc., DENSO CORPORATIONInventors: Masashi Hori, Yasuhiko Mukai, Kouichi Nakamura
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Publication number: 20120055730Abstract: A steering control apparatus has a variable gear ratio device and a power steering device. If abnormality arises in the VGRS device, an EPS motor is controlled based on a steering wheel angle and a speed increase ratio. Thus, vehicle wheels are controlled appropriately when abnormality arises in the VGRS device. Steered angle of the vehicle wheels relative to the steering wheel angle is not changed between before and after occurrence of abnormality in the VGRS device. As a result, movement of a vehicle does not deviate from the steering wheel angle and feeling of discomfort in steering a vehicle can be reduced.Type: ApplicationFiled: August 10, 2011Publication date: March 8, 2012Applicants: Nippon Soken, Inc., DENSO CORPORATIONInventors: Yasuhiko Mukai, Hideki Kabune, Kouichi Nakamura, Masashi Hori
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Publication number: 20120035810Abstract: In a steering control apparatus, a worm gear is configured to have a lead angle for a self-lock operation, by which a worm wheel is allowed to rotate by rotation of a worm but the worm is not allowed to rotate by rotation of the worm wheel. Thus, a lock mechanism need not be provided separately from a gear mechanism and the apparatus is reduced in entire size. A VGRS control part checks whether the worm gear has a self-lock failure, which disables the self-lock operation. If the worm gear has the self-lock failure, idling suppression processing is performed to suppress idling of a steering wheel. Thus, even when the self-lock failure arises, the steering wheel is suppressed from idling.Type: ApplicationFiled: August 4, 2011Publication date: February 9, 2012Applicants: Nippon Soken, Inc., DENSO CORPORATIONInventors: Yasuhiko Mukai, Hideki Kabune, Kouichi Nakamura, Masashi Hori
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Publication number: 20110313620Abstract: A VGRS device checks whether assist control of an EPS device for assisting steering operation of a steering wheel is being stopped. If the assist control of the EPS device is being stopped, a speed increase ratio is determined so that the rotation angle of the output shaft is less than the rotation angle of the input shaft. A VGRS motor is controlled and driven based on a determined speed increase ratio. Thus, steering operation of the steering wheel can be controlled appropriately so that the steering operation of the steering wheel can be continued with relatively small torque. It is less likely that a driver will erroneously feel that the steering wheel is locked.Type: ApplicationFiled: June 15, 2011Publication date: December 22, 2011Applicants: Nippon Soken, Inc., DENSO CORPORATIONInventors: Yasuhiko Mukai, Hideki Kabune, Kouichi Nakamura, Masashi Hori
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Publication number: 20110303479Abstract: A steering control apparatus acquires vibration torque, which is generated by vibration of a gear mechanism when a steering wheel is operated at a steering angle. By setting the acquired vibration torque as a torque difference, an EPS motor current command value is corrected based on the torque difference thereby to calculate a corrected EPS motor current command value. Rattling and vibration caused in the gear mechanism are suppressed from being transferred to the steering wheel through an input shaft so that a driver is released from uncomfortable feeling.Type: ApplicationFiled: June 8, 2011Publication date: December 15, 2011Applicant: DENSO CORPORATIONInventors: Yasuhiko Mukai, Hideki Kabune, Koulchi Nakamura, Masashi Hori
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Patent number: 8075447Abstract: A vehicle control system including a range selector having a shift lever operated by a driver of a vehicle, a shift control device for controlling the switching of a shift range of an automatic transmission of the vehicle in accordance with the range selecting operation of the shift lever, and an engine control device for controlling the switching of ON/OFF of an internal combustion engine of the vehicle in accordance with an engine switch operation of the shift lever.Type: GrantFiled: March 27, 2008Date of Patent: December 13, 2011Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Masashi Hori, Shinji Takeuchi
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Patent number: 8072168Abstract: A reference position detecting apparatus includes an electric motor and a motor control unit. The electric motor includes a plurality of first coils and a plurality of second coils. The electric motor further includes a rotor that rotates when at least one of the plurality of first coils and the plurality of second coils is supplied with electricity. The motor control unit controls electricity supplied to either one of the plurality of first coils and the plurality of second coils to rotate the rotor to a limit position in a movable range of an object.Type: GrantFiled: November 10, 2009Date of Patent: December 6, 2011Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Kiyoshi Kimura, Taku Itoh, Shigeru Yoshiyama, Masashi Hori