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).
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Patent number: 11462859Abstract: 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: GrantFiled: March 15, 2021Date of Patent: October 4, 2022Assignees: ADVANTEST Corporation, Molex, LLCInventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
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Patent number: 11462870Abstract: 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: GrantFiled: March 15, 2021Date of Patent: October 4, 2022Assignees: ADVANTEST Corporation, Molex, LLCInventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
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Patent number: 11342693Abstract: 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: GrantFiled: October 5, 2020Date of Patent: May 24, 2022Assignee: Molex, LLCInventors: Masayuki Arai, Shigeru Akiyama, Qiucen He
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Publication number: 20210376544Abstract: 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: ApplicationFiled: March 15, 2021Publication date: December 2, 2021Applicants: ADVANTEST Corporation, Molex, LLCInventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
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Publication number: 20210376529Abstract: 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: ApplicationFiled: March 15, 2021Publication date: December 2, 2021Applicants: ADVANTEST Corporation, Molex, LLCInventors: Takahito Seshimo, Atsunori Shibuya, Masayuki Arai, Masataka Oyama, Shigeru Akiyama, Ayako Matsumoto
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Publication number: 20210021064Abstract: 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: ApplicationFiled: October 5, 2020Publication date: January 21, 2021Applicant: Molex, LLCInventors: Masayuki ARAI, Shigeru AKIYAMA, Qiucen HE
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Patent number: 10851843Abstract: 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: GrantFiled: April 8, 2019Date of Patent: December 1, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinichiro Shibata, Masayuki Arai
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Patent number: 10840618Abstract: 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: GrantFiled: August 8, 2019Date of Patent: November 17, 2020Assignee: Molex, LLCInventors: Masayuki Arai, Shigeru Akiyama, Qiucen He
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Publication number: 20200112110Abstract: 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: ApplicationFiled: August 8, 2019Publication date: April 9, 2020Applicant: Molex, LLCInventors: Masayuki ARAI, Shigeru AKIYAMA, Qiucen HE
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Patent number: 10501066Abstract: 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: GrantFiled: September 12, 2017Date of Patent: December 10, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masayuki Arai, Koji Takaira, Akinori Takahashi
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Publication number: 20190353434Abstract: 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: ApplicationFiled: May 14, 2019Publication date: November 21, 2019Inventors: Masayuki Arai, Takahiro Uneme
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Patent number: 10458492Abstract: 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: GrantFiled: May 31, 2018Date of Patent: October 29, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masayuki Arai, Satoshi Ishida, Shota Murai, Taito Goto
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Publication number: 20190309804Abstract: 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: ApplicationFiled: April 8, 2019Publication date: October 10, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinichiro SHIBATA, Masayuki ARAI
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Patent number: 10293688Abstract: 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: GrantFiled: September 12, 2017Date of Patent: May 21, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masayuki Arai
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Patent number: 10245950Abstract: 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: GrantFiled: October 5, 2017Date of Patent: April 2, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daichi Shimizu, Shunro Fukada, Satoshi Shimizu, Masayuki Arai
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Publication number: 20190017557Abstract: 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: ApplicationFiled: May 31, 2018Publication date: January 17, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masayuki ARAI, Satoshi ISHIDA, Shota MURAI, Taito GOTO
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Publication number: 20180247340Abstract: 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: ApplicationFiled: September 12, 2016Publication date: August 30, 2018Applicant: NEC CorporationInventor: Masayuki ARAI
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Publication number: 20180134154Abstract: 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: ApplicationFiled: October 5, 2017Publication date: May 17, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daichi SHIMIZU, Shunro FUKADA, Satoshi SHIMIZU, Masayuki ARAI
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Publication number: 20180086328Abstract: 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: ApplicationFiled: September 12, 2017Publication date: March 29, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masayuki ARAI, Koji TAKAIRA, Akinori TAKAHASHI
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Publication number: 20180086202Abstract: 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: ApplicationFiled: September 12, 2017Publication date: March 29, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masayuki ARAI