Patents by Inventor Masayuki Arai

Masayuki Arai 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).

  • Publication number: 20180247340
    Abstract: The present invention enables the recognition of a display medium by a user to be evaluated using a method that is more in accordance with actual conditions. An information processing device (100) is provided with a first acquisition unit (110) that acquires the location information of a mobile terminal that has communicated with a wireless station correspondingly provided to a display medium, a second acquisition unit (120) that acquires configuration information for setting the recognition area of the display medium determined in accordance with at least one of the size, height, and orientation of the display medium, and a calculation unit (130) that calculates the recognition degree of the display medium on the basis of the acquired location information and the recognition area in accordance with the acquired configuration information.
    Type: Application
    Filed: September 12, 2016
    Publication date: August 30, 2018
    Applicant: NEC Corporation
    Inventor: Masayuki ARAI
  • Publication number: 20180134154
    Abstract: When a vehicle is switched from a two-wheel-drive mode to a four-wheel-drive mode during turning, rotation of a Rr dog clutch is synchronized by a synchro mechanism. Rotation of a Fr dog clutch is synchronized, by controlling coupling torque of a control coupling that transmits power to a rear wheel that provides an outer wheel during turning. Thus, rotation of the Fr dog clutch is also synchronized, so that shock at the time of engagement of the Fr dog clutch can be suppressed.
    Type: Application
    Filed: October 5, 2017
    Publication date: May 17, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daichi SHIMIZU, Shunro FUKADA, Satoshi SHIMIZU, Masayuki ARAI
  • Publication number: 20180086202
    Abstract: An electronic control unit switches a driving mode to a high-gear two-wheel driving mode when a first condition and a second condition are satisfied at the time of driving in a high-gear four-wheel driving mode, and switches the driving mode from the high-gear two-wheel driving mode to the low-gear driving mode when a third condition is satisfied in a state in which the first and second conditions are satisfied. Accordingly, it is possible to shorten a time required for switching to the low-gear driving mode after all of the first to third conditions are satisfied.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 29, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masayuki ARAI
  • Publication number: 20180086328
    Abstract: A control device for a power transmission device including an automatic transmission and a sub transmission is provided. The control device includes an electronic control unit. The electronic control unit is configured to perform a rotation speed decrease control in which at least one frictional engagement device is controlled to be an engaged state or a semi-engaged state at a time when switching of gear stage of the sub transmission is started or a time when the switching is started. The electronic control unit is configured to end the rotation speed decrease control during switching of the gear stage. The electronic control unit is configured to switch the sub transmission from the power transmission cutoff state to a state in which one of the high-speed engagement element and the low-speed engagement element is engaged, during disengagement of the at least one frictional engagement device.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 29, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki ARAI, Koji TAKAIRA, Akinori TAKAHASHI
  • Patent number: 9450525
    Abstract: An electric motor control system includes an inverter, an element temperature observation data acquiring device, a rotational speed upper limit setting device, and a rotational speed limiter. The inverter includes switching elements. The element temperature observation data acquiring device is configured to acquire element temperature observation data indicating an observation value of a temperature of the switching elements of the inverter. The rotational speed upper limit setting device is configured to set a rotational speed upper limit of an electric motor in accordance with the observation value of the temperature of the switching elements so as to satisfy a first condition that a voltage applicable to the switching elements in a case where the electric motor is operated at the rotational speed upper limit is lower than or equal to a withstand voltage of the switching elements.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 20, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Keisuke Urushihara, Masayuki Arai, Keigo Andoh
  • Patent number: 9417414
    Abstract: An optical connector is disclosed. The optical connector includes a cable having formed therein an optical waveguide, a plug having the cable connected thereto, and a connector housing configured to mount thereon the plug. The cable is provided with a cable-side guide portion. The plug is provided with a plug housing which has a plug-side guide portion and is attached to the cable. The connector housing is provided with a connector-side guide portion. The plug-side guide portion is configured to be engaged with the cable-side guide portion to achieve a positioning of the cable and the plug housing and be engaged with the connector-side guide portion to achieve a positioning of the connector housing and the plug.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: August 16, 2016
    Assignee: Molex, LLC
    Inventors: Akihiro Shimotsu, Masayuki Arai
  • Patent number: 9415684
    Abstract: A four-wheel drive vehicle includes an engine, a transmission provided on a power transmission path between a main drive wheel and a subsidiary drive wheel, and a connection-disconnection mechanism provided on a power transmission path between the transmission and the subsidiary drive wheel to selectively connect and disconnect the power transmission path. A control device for the four-wheel drive vehicle includes an electronic control unit. The electronic control unit is configured to control a transmission torque of the transmission to be less than or equal to a predetermined value when a predetermined condition is satisfied during traveling, and to control the connection-disconnection mechanism so as to at least partially overlap a time during which the transmission torque of the transmission is controlled to be less than or equal to the predetermined value and a time during which the power transmission path is disconnected by the connection-disconnection mechanism.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 16, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masayuki Arai
  • Patent number: 9379467
    Abstract: An optical connector is disclosed. The optical connector includes a cable having formed therein an optical waveguide, a plug having the cable connected thereto, and a connector housing configured to mount thereon the plug. The cable is provided with a cable-side guide portion. The plug is provided with a plug housing which has a plug-side guide portion and is attached to the cable. Either one of the cable-side guide portion and the plug-side guide portion is configured as a protrusive convex portion, and the other guide portion is configured as a concave portion so that the convex portion is press-fitted into the concave portion, thereby achieving a positioning of the cable and the plug housing.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: June 28, 2016
    Assignee: Molex, LLC
    Inventors: Akihiro Shimotsu, Masayuki Arai
  • Patent number: 9364952
    Abstract: An end effector base and a finger unit are formed as separate members, and are disposed with a space therebetween. A force sensor is fixed to a finger base of the finger unit, and is disposed with a space between it and the end effector base. Three supporting members are supported by the end effector base, and are configured to be able to be moved by the driving of a driving unit to a position where they support the force sensor and a position where they are separated from the force sensor and support the finger unit.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 14, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masayuki Arai
  • Patent number: 9272700
    Abstract: A disconnect mechanism is configured to disconnect a predetermined rotating element from an engine and an auxiliary drive wheels while the vehicle is traveling in a two-wheel drive mode. The predetermined rotating element is configured to transmit power to the auxiliary drive wheels while the vehicle is traveling in a four-wheel drive mode. An electronic control unit is configured to: execute shift control when a shift condition of an automatic transmission is satisfied; selectively engage or release the disconnect mechanism based on a traveling state of the vehicle and a driver's predetermined operation; and control at least one of the automatic transmission or the disconnect mechanism such that a shift period based on the shift condition of the automatic transmission and an engagement-release period of the disconnect mechanism at least partially overlap with each other.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: March 1, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideki Tamoto, Masayuki Arai, Yoshiro Obayashi, Kunihiro Iwatsuki
  • Publication number: 20150372624
    Abstract: An electric motor control system includes an inverter, an element temperature observation data acquiring device, a rotational speed upper limit setting device, and a rotational speed limiter. The inverter includes switching elements. The element temperature observation data acquiring device is configured to acquire element temperature observation data indicating an observation value of a temperature of the switching elements of the inverter. The rotational speed upper limit setting device is configured to set a rotational speed upper limit of an electric motor in accordance with the observation value of the temperature of the switching elements so as to satisfy a first condition that a voltage applicable to the switching elements in a case where the electric motor is operated at the rotational speed upper limit is lower than or equal to a withstand voltage of the switching elements.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 24, 2015
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Keisuke URUSHIHARA, Masayuki ARAI, Keigo ANDOH
  • Publication number: 20150142280
    Abstract: A disconnect mechanism is configured to disconnect a predetermined rotating element from an engine and an auxiliary drive wheels while the vehicle is traveling in a two-wheel drive mode. The predetermined rotating element is configured to transmit power to the auxiliary drive wheels while the vehicle is traveling in a four-wheel drive mode. An electronic control unit is configured to: execute shift control when a shift condition of an automatic transmission is satisfied; selectively engage or release the disconnect mechanism based on a traveling state of the vehicle and a driver's predetermined operation; and control at least one of the automatic transmission or the disconnect mechanism such that a shift period based on the shift condition of the automatic transmission and an engagement-release period of the disconnect mechanism at least partially overlap with each other.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Hideki Tamoto, Masayuki Arai, Yoshiro Obayashi, Kunihiro Iwatsuki
  • Publication number: 20150096821
    Abstract: A four-wheel drive vehicle includes an engine, a transmission provided on a power transmission path between a main drive wheel and a subsidiary drive wheel, and a connection-disconnection mechanism provided on a power transmission path between the transmission and the subsidiary drive wheel to selectively connect and disconnect the power transmission path. A control device for the four-wheel drive vehicle includes an electronic control unit. The electronic control unit is configured to control a transmission torque of the transmission to be less than or equal to a predetermined value when a predetermined condition is satisfied during traveling, and to control the connection-disconnection mechanism so as to at least partially overlap a time during which the transmission torque of the transmission is controlled to be less than or equal to the predetermined value and a time during which the power transmission path is disconnected by the connection-disconnection mechanism.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 9, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masayuki ARAI
  • Publication number: 20150100160
    Abstract: An end effector base and a finger unit are formed as separate members, and are disposed with a space therebetween. A force sensor is fixed to a finger base of the finger unit, and is disposed with a space between it and the end effector base. Three supporting members are supported by the end effector base, and are configured to be able to be moved by the driving of a driving unit to a position where they support the force sensor and a position where they are separated from the force sensor and support the finger unit.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 9, 2015
    Inventor: Masayuki Arai
  • Patent number: 8801299
    Abstract: An optical connector assembly, and both a cable and a plug for use with such an optical connector assembly, are disclosed. The optical connector assembly includes a cable having laminated therein an optical waveguide and conductive wires, a plug having the cable connected thereto, and a connector housing configured to mount thereon a plug connector. The cable is provided with a wiring portion, arranged so that a core portion of the optical waveguide and the conductive wires do not overlap with each other, and a connection end portion, arranged so that a portion of the core portion of the optical waveguide overlaps with a portion of the conductive wires.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: August 12, 2014
    Assignee: Molex Incorporated
    Inventors: Akihiro Shimotsu, Masayuki Arai
  • Patent number: 8696510
    Abstract: A driveline includes a wet multi-plate clutch that can switch between a two-wheel drive state and a four-wheel drive state, and a disconnect mechanism that switches transmission/non-transmission of torque between a front differential and one of front wheels. When the driveline is switched from the two-wheel drive state to the four-wheel drive state, the wet multi-plate clutch is actuated to an engagement side, and thus the rotation of the front differential and that of the front wheels are synchronized, and after synchronization is finished, the disconnect mechanism is switched to the transmission state. After switching of the disconnect mechanism is finished, the wet multi-plate clutch is actuated to a disengagement side and returns to a standby position between a disengagement position in the two-wheel drive state and a synchronous position in which the disconnect mechanism is switched.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: April 15, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masayuki Arai
  • Patent number: 8475054
    Abstract: An electric connector comprises a conductive terminal and a housing. The conductive terminal is provided with a terminal body portion, a soldering portion, to which an end portion of an electric wire is soldered, and a connection portion connected to a counterpart terminal. The housing is provided with a terminal receipt-hole, in which at least a portion of the terminal body portion is received, and a soldering portion accommodation-groove, in which at least a portion of the soldering portion is accommodated. The soldering portion accommodation-groove is provided with inner side walls, that extend along lateral ends of a soldering surface of the soldering portion, and a concave portion, which is formed in the inner side walls so that a portion of solder that is used for soldering of the end portion of the electric wire is able to come into the concave portion.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: July 2, 2013
    Assignee: Molex Incorporated
    Inventors: Akihiro Shimotsu, Masayuki Arai
  • Patent number: 8449202
    Abstract: A connector comprises a housing, a lever and a lock portion. The housing receives terminals. The lever, rotatably attached to the housing, is configured to be rotatable between a first position, where an initial stage of fitting to a counterpart connector is established, and a second position, where the fitting thereof is completed. The lock portion, capable of locking the lever at the second position, is slidably attached to a body portion of the lever, and configured to be slid between a lock position and a lock release position. The lever is provided with a positioning latch-portion configured to latch the lock portion. The positioning latch-portion is provided with a concave latch-portion and a convex latch-portion configured to be elastically displaced to be engaged in or disengaged from the concave latch-portion.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: May 28, 2013
    Assignee: Molex Incorporated
    Inventors: Akihiro Shimotsu, Masayuki Arai
  • Patent number: 8447453
    Abstract: A navigation device for setting an appropriate navigation route based on a support route while reducing an amount of communicating information, is provided. The navigation server recognizes a departure position and a destination position of a user, and sets a support route connecting the departure position and the destination position, based on communication with the navigation device. The navigation device recognizes multiple links constituting a part of the support route, based on communication with the navigation server. The navigation device sets a navigation route including the links connecting the departure position and the destination position. The navigation device determines whether a deviation between a distance of an adjacent link pairs among the links along the support route and a distance thereof along the navigation route is equal to or less than a threshold value. The navigation route is output via an output device if the determination result is positive.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: May 21, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Koji Sengoku, Aiko Sugawara, Masayuki Arai, Yoshitaka Kinoshita
  • Publication number: 20120260758
    Abstract: A driveline includes a wet multi-plate clutch that can switch between a two-wheel drive state and a four-wheel drive state, and a disconnect mechanism that switches transmission/non-transmission of torque between a front differential and one of front wheels. When the driveline is switched from the two-wheel drive state to the four-wheel drive state, the wet multi-plate clutch is actuated to an engagement side, and thus the rotation of the front differential and that of the front wheels are synchronized, and after synchronization is finished, the disconnect mechanism is switched to the transmission state. After switching of the disconnect mechanism is finished, the wet multi-plate clutch is actuated to a disengagement side and returns to a standby position between a disengagement position in the two-wheel drive state and a synchronous position in which the disconnect mechanism is switched.
    Type: Application
    Filed: March 15, 2012
    Publication date: October 18, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masayuki ARAI