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).

  • Patent number: 11462859
    Abstract: A coaxial terminal includes a signal terminal, a tubular ground terminal that covers the signal terminal, and an insulating member interposed between the signal terminal and the ground terminal. The signal terminal includes a main body that is covered by the insulating member, an upper contact piece that extends from the main body to +Z direction side, and a lower contact piece that extends from the main body to ?Z direction side. The insulating member has an opening through which a part of the main body is exposed. A following formula (1) is satisfied: L2?½×L1??(1) where L1 is a length of the insulating member along an axial direction of the coaxial terminal, L2 is a length of the opening along the axial direction.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: October 4, 2022
    Assignees: ADVANTEST Corporation, Molex, LLC
    Inventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
  • Patent number: 11462870
    Abstract: A wiring board includes a wiring board body and a coaxial connector. The coaxial connector includes coaxial terminals and a housing. The coaxial terminals are arranged in row. Each of the coaxial terminals includes a signal terminal and a ground terminal. The ground terminal includes a tubular main body and first and second contact pieces that respectively extend from the main body and respectively include first and second contact portions in contact with the wiring board body, in a transparent plan view seen through the wiring board along a normal direction of the wiring board body. A part of the first contact piece of a first coaxial terminal overlaps with a part of the second contact piece of a second coaxial terminal adjacent to the first coaxial terminal.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: October 4, 2022
    Assignees: ADVANTEST Corporation, Molex, LLC
    Inventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
  • Patent number: 11342693
    Abstract: A terminal retention hole of a receptacle housing has guide grooves for permitting sliding of protruding guide parts of a receptacle terminal in the engaging longitudinal direction of the protruding guide parts. Each of the plug terminals has a base part and a contact part extending from the base part. A thickness of the plug terminal contact part in the horizontal direction is smaller than the thickness of the plug terminal base part in the horizontal direction.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: May 24, 2022
    Assignee: Molex, LLC
    Inventors: Masayuki Arai, Shigeru Akiyama, Qiucen He
  • Publication number: 20210376544
    Abstract: A wiring board includes a wiring board body and a coaxial connector. The coaxial connector includes coaxial terminals and a housing. The coaxial terminals are arranged in row. Each of the coaxial terminals includes a signal terminal and a ground terminal. The ground terminal includes a tubular main body and first and second contact pieces that respectively extend from the main body and respectively include first and second contact portions in contact with the wiring board body, in a transparent plan view seen through the wiring board along a normal direction of the wiring board body. A part of the first contact piece of a first coaxial terminal overlaps with a part of the second contact piece of a second coaxial terminal adjacent to the first coaxial terminal.
    Type: Application
    Filed: March 15, 2021
    Publication date: December 2, 2021
    Applicants: ADVANTEST Corporation, Molex, LLC
    Inventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
  • Publication number: 20210376529
    Abstract: A coaxial terminal includes a signal terminal, a tubular ground terminal that covers the signal terminal, and an insulating member interposed between the signal terminal and the ground terminal. The signal terminal includes a main body that is covered by the insulating member, an upper contact piece that extends from the main body to +Z direction side, and a lower contact piece that extends from the main body to ?Z direction side. The insulating member has an opening through which a part of the main body is exposed. A following formula (1) is satisfied: L2?½×L1??(1) where L1 is a length of the insulating member along an axial direction of the coaxial terminal, L2 is a length of the opening along the axial direction.
    Type: Application
    Filed: March 15, 2021
    Publication date: December 2, 2021
    Applicants: ADVANTEST Corporation, Molex, LLC
    Inventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
  • Publication number: 20210021064
    Abstract: A terminal retention hole of a receptacle housing has guide grooves for permitting sliding of protruding guide parts of a receptacle terminal in the engaging longitudinal direction of the protruding guide parts. Each of the plug terminals has a base part and a contact part extending from the base part. A thickness of the plug terminal contact part in the horizontal direction is smaller than the thickness of the plug terminal base part in the horizontal direction.
    Type: Application
    Filed: October 5, 2020
    Publication date: January 21, 2021
    Applicant: Molex, LLC
    Inventors: Masayuki ARAI, Shigeru AKIYAMA, Qiucen HE
  • Patent number: 10851843
    Abstract: A vehicle including a coupling device that includes (a) an engagement clutch mechanism for coupling an input side engagement member that is coupled to a drive power source of the vehicle and an output side engagement member that is coupled to a drive wheel of the vehicle; and (b) a cam mechanism for assisting engagement of the input and output side engagement members depending on a differential torque by which the input and output side engagement members are rotated differentially. The vehicle includes a control device configured, when the engagement of the input and output side engagement members is to be released, to cause a braking force to be applied to one of the input and output side engagement members such that the differential torque is reduced.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: December 1, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinichiro Shibata, Masayuki Arai
  • Patent number: 10840618
    Abstract: A terminal retention hole of a receptacle housing has guide grooves for permitting sliding of protruding guide parts of a receptacle terminal in the engaging longitudinal direction of the protruding guide parts. Each of the plug terminals has a base part and a contact part extending from the base part. A thickness of the plug terminal contact part in the horizontal direction is smaller than the thickness of the plug terminal base part in the horizontal direction.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: November 17, 2020
    Assignee: Molex, LLC
    Inventors: Masayuki Arai, Shigeru Akiyama, Qiucen He
  • Publication number: 20200112110
    Abstract: A terminal retention hole of a receptacle housing has guide grooves for permitting sliding of protruding guide parts of a receptacle terminal in the engaging longitudinal direction of the protruding guide parts. Each of the plug terminals has a base part and a contact part extending from the base part. A thickness of the plug terminal contact part in the horizontal direction is smaller than the thickness of the plug terminal base part in the horizontal direction.
    Type: Application
    Filed: August 8, 2019
    Publication date: April 9, 2020
    Applicant: Molex, LLC
    Inventors: Masayuki ARAI, Shigeru AKIYAMA, Qiucen HE
  • Patent number: 10501066
    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: Grant
    Filed: September 12, 2017
    Date of Patent: December 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Arai, Koji Takaira, Akinori Takahashi
  • Publication number: 20190353434
    Abstract: A cooling apparatus is a cooling apparatus in which a refrigerant flows in a refrigerant flow passage and thereby cools a cooled body that is mounted on a mount part, the cooling apparatus including a heat release part that is arranged in the refrigerant flow passage, wherein the heat release part includes a plurality of first surfaces that are formed so as to approach the mount part side as proceeding in a first direction along a flow direction of the refrigerant flow passage and a plurality of second surfaces that are formed so as to be separated from the mount part as proceeding in the first direction, and the plurality of first surfaces and the plurality of second surfaces are alternately arranged in the first direction.
    Type: Application
    Filed: May 14, 2019
    Publication date: November 21, 2019
    Inventors: Masayuki Arai, Takahiro Uneme
  • Patent number: 10458492
    Abstract: An electronic control unit executes gradual reduction control when a friction clutch is to be maintained in a fully engaged state such that an input rotary member and an output rotary member rotate integrally. As a result, a motor current supplied to a motor is adjusted to a lower current value. Thus, an average current value of the motor current supplied to the motor when the friction clutch is to be maintained in the fully engaged state is appropriately reduced.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Arai, Satoshi Ishida, Shota Murai, Taito Goto
  • Publication number: 20190309804
    Abstract: A vehicle including a coupling device that includes (a) an engagement clutch mechanism for coupling an input side engagement member that is coupled to a drive power source of the vehicle and an output side engagement member that is coupled to a drive wheel of the vehicle; and (b) a cam mechanism for assisting engagement of the input and output side engagement members depending on a differential torque by which the input and output side engagement members are rotated differentially. The vehicle includes a control device configured, when the engagement of the input and output side engagement members is to be released, to cause a braking force to be applied to one of the input and output side engagement members such that the differential torque is reduced.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 10, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinichiro SHIBATA, Masayuki ARAI
  • Patent number: 10293688
    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: Grant
    Filed: September 12, 2017
    Date of Patent: May 21, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masayuki Arai
  • Patent number: 10245950
    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: Grant
    Filed: October 5, 2017
    Date of Patent: April 2, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daichi Shimizu, Shunro Fukada, Satoshi Shimizu, Masayuki Arai
  • Publication number: 20190017557
    Abstract: An electronic control unit executes gradual reduction control when a friction clutch is to be maintained in a fully engaged state such that an input rotary member and an output rotary member rotate integrally. As a result, a motor current supplied to a motor is adjusted to a lower current value. Thus, an average current value of the motor current supplied to the motor when the friction clutch is to be maintained in the fully engaged state is appropriately reduced.
    Type: Application
    Filed: May 31, 2018
    Publication date: January 17, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki ARAI, Satoshi ISHIDA, Shota MURAI, Taito GOTO
  • 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: 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
  • 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