Patents by Inventor Kei Yoshikawa
Kei Yoshikawa 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: 20240151684Abstract: A gas sensor element includes: a second ceramic layer including a pump cell in which a first electrode and a second electrode are provided on a surface of a first solid electrolyte body; a first ceramic layer including a measurement chamber which is faced by the first electrode and into which a gas to be measured flows; a porous body covering the second electrode; and a dense layer having a void and not allowing the gas to be measured to pass therethrough. The second electrode and the void are connected through the porous body. A reinforcing layer which is porous and contains, as a main component, a component having a lower firing start temperature than a main component of the porous body is interposed between the second electrode and the porous body at a position overlapping the void in a thickness direction of the porous body.Type: ApplicationFiled: November 2, 2023Publication date: May 9, 2024Inventors: Hitoshi FURUTA, Kei YOSHIKAWA
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Patent number: 11975778Abstract: An information processing apparatus disclosed has a controller configured to execute the processing of accepting a request for retrieving a target vehicle body unit that is laid at a specific place, selecting a chassis unit for retrieval from among chassis units in the state separated from any vehicle body unit, the chassis unit for retrieval being a chassis unit to be used to retrieve the target vehicle body unit, and sending a retrieval command to the chassis unit for retrieval, the retrieval command being a command to retrieve the target vehicle body unit.Type: GrantFiled: February 3, 2021Date of Patent: May 7, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Katsuhisa Yoshikawa, Yuji Suzuki, Keita Yamazaki, Kei Matsumoto, Hiroyuki Ito, Takashi Ogawa, Yukiya Sugiyama, Masaru Ando, Yasushi Fujiwara, Azusa Nakagame, Erina Toyama
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Patent number: 11964402Abstract: In a robot control system, the operation of a mobile robot that moves autonomously inside a facility is controlled based at least on an image captured by a photographing device that photographs a blind area located at a blind angle to the mobile robot. When entry of the mobile robot into a predetermined area corresponding to the blind area is detected, the amount of information obtainable from an image captured by the photographing device is increased.Type: GrantFiled: November 11, 2021Date of Patent: April 23, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11926067Abstract: In a robot control system, the operation of a mobile robot that moves autonomously inside a facility is controlled based at least on an image captured by a photographing device that photographs a blind area located at a blind angle to the mobile robot. When entry of the mobile robot into a predetermined area corresponding to the blind area is detected, the amount of information obtainable from an image captured by the photographing device is increased.Type: GrantFiled: November 11, 2021Date of Patent: March 12, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11919168Abstract: A robot control system according to the present embodiment is a robot control system that controls a plurality of transport robots that is travelable autonomously in a facility. The robot control system: acquires error information indicating that an error has occurred in a first transport robot; acquires transported object information related to a transported object of the first transport robot; determines a second transport robot able to transport the transported object of the first transport robot among the transport robots based on the transported object information and the error information; and moves the second transport robot to a transfer location of the transported object of the first transport robot.Type: GrantFiled: November 10, 2021Date of Patent: March 5, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya Taira, Shiro Oda, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma
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Patent number: 11915536Abstract: An anomaly determination apparatus for a vehicle that includes a transmission includes an execution device and a memory device. The memory device is configured to store map data that defines pre-trained map, which has been trained through machine learning. When a variable representing time-series data of a rotation speed of a gear is fed to the map as an input variable, the map outputs a state variable representing a state of the gear as an output variable. The execution device is configured to execute: an obtaining process that obtains the variable representing the time-series data as a value of the input variable; and a determination process that determines whether there is an anomaly in the transmission based on a value of the output variable that is output by the map when the value of the input variable is fed to the map.Type: GrantFiled: July 12, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideaki Bunazawa, Tetsuya Yoshikawa, Kei Yuasa, Kenichi Yamaguchi
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Patent number: 11914397Abstract: A robot control system according to the present embodiment is a robot control system that controls a plurality of mobile robots that can autonomously move in a facility. The robot control system acquires error information indicating that an error has occurred in a first transport robot, acquires transported object information related to a transported object of the first transport robot, determines a second transport robot able to transport the transported object of the first transport robot among the transport robots based on the transported object information and the error information, and moves the second transport robot to a transfer location of the transported object of the first transport robot.Type: GrantFiled: December 8, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11914363Abstract: A mobile robot receives first transmission information transmitted from a server device to manage the mobile robot in a state where wireless communication with the server device is possible, directly executes wireless communication with another mobile robot among the mobile robots and executes a reception process of receiving the first transmission information transmitted from the server device to manage the mobile robot from the other mobile robot in a case where wireless communication with the server device is not possible.Type: GrantFiled: December 7, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11906976Abstract: A robot control system is a robot control system that controls a plurality of mobile robots, in which: each of the mobile robots includes right and left wheels, and a sensor that detects actions of the right and left wheels; and the control system calculates abrasion degrees of right and left components for the right and left wheels, depending on a detection result of the sensor, and manages traveling of the plurality of mobile robots, depending on the abrasion degrees.Type: GrantFiled: March 9, 2022Date of Patent: February 20, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Publication number: 20230418296Abstract: An autonomous mobile robot control system includes: a host management device; and an autonomous mobile robot. The host management device includes a data collection unit that collects sunshine condition data corresponding to a sunshine condition within a movement range of the autonomous mobile robot, and a parameter calculation unit that calculates, based on the sunshine condition data, an optimum parameter that reduces an influence of the sunshine condition corresponding to the sunshine condition data. The autonomous mobile robot includes a parameter setting unit that sets the optimum parameter. The autonomous mobile robot control system executes a predetermined operation based on the optimum parameter set by the parameter setting unit.Type: ApplicationFiled: June 13, 2023Publication date: December 28, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke OTA, Shiro ODA, Masayoshi TSUCHINAGA, Kei YOSHIKAWA, Takeshi MATSUI
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Publication number: 20230364784Abstract: A control system according to the present embodiment includes: a feature extraction unit that extracts a feature of a person in a captured image captured by a camera; a first determination unit that determines, based on a feature extraction result, whether the person included in the captured image is a device user who uses an assistive device for assisting movement; a second determination unit that determines, based on the feature extraction result, whether an assistant who assists movement of the device user is present; and a control unit that switches between a first mode and a second mode that executes a process with a lower load than a processing load in the first mode depending on whether the assistant is present.Type: ApplicationFiled: March 22, 2023Publication date: November 16, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kei Yoshikawa, Shiro Oda, Susumu Shimizu, Takeshi Matsui
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Publication number: 20230368517Abstract: A control system according to the present disclosure executes system control that controls a system including a mobile robot that autonomously moves. The control system executes a group classification process of recognizing a feature of a person present around the mobile robot and classifying, based on the feature, the person into a preset first group or second group. The control system above selects a first operation mode when the person belonging to the first group is present around the mobile robot and selects a second operation mode that is different from the first operation mode when the person belonging to the first group is not present around the mobile robot. The control system above controls, when the second operation mode is selected, the group classification process so as to execute a process with a smaller processing load than a processing load when the first operation mode is selected.Type: ApplicationFiled: March 16, 2023Publication date: November 16, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kei Yoshikawa, Shiro Oda, Susumu Shimizu, Takeshi Matsui
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Patent number: 11782449Abstract: An autonomous mobile system according to the present embodiment is an autonomous mobile system that autonomously moves in a facility provided with a corner between aisles. When the autonomous mobile system turns at the corner, the autonomous mobile system calculates a magnitude of a corner radius of turning in a traveling path based on an obstacle captured in image data of a camera that captures an image of an exit of the corner.Type: GrantFiled: October 29, 2021Date of Patent: October 10, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya Taira, Shiro Oda, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma
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Control system, control method, and computer readable medium for opening and closing a security gate
Patent number: 11776339Abstract: A control system that controls opening-closing of a security gate which is provided in a facility in which a plurality of mobile robots travels autonomously is provided. The control system performs: receiving a passing-through reservation signal for passing through the security gate; and allowing a plurality of mobile robots to consecutively pass through the security gate while the security gate opens its gate once when passing-through reservation signals are received from the plurality of mobile robots.Type: GrantFiled: December 8, 2021Date of Patent: October 3, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai -
Patent number: 11755009Abstract: A transport system transports a transported object using an autonomously moveable mobile robot. The transport system stores management information including a use start time, a use end time, and a use location for each equipment to be lent that is transported as the transported object by the mobile robot. The transport system executes a determination process for determining whether an interval from the use end time to a next use start time is equal to or longer than a predetermined time for each equipment based on the management information. The transport system transports the equipment to its storage location after an end of use of the equipment when the interval is equal to or longer than the predetermined time, and transports the equipment to a next use location of the equipment after the end of the use of the equipment when the interval is shorter than the predetermined time.Type: GrantFiled: October 13, 2021Date of Patent: September 12, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Publication number: 20230236601Abstract: A control system is configured to control a system including a plurality of cameras installed in a facility, and perform a group classification process for recognizing a feature of a person photographed by the camera and classifying the person into a predetermined first or second group based on the feature. When there is or isn’t a person belonging to the first group, the control system selects a first operation mode and a second operation mode different from the first operation mode, respectively. When the control system selects the second operation mode, it performs the process so as to make either one of the number of cameras to be operated among the plurality of cameras and the number of cameras used as an information source in classification in the process among the plurality of cameras less than the number of cameras that are used when the first operation mode is selected.Type: ApplicationFiled: December 5, 2022Publication date: July 27, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kei YOSHIKAWA, Shiro ODA, Susumu SHIMIZU, Takeshi MATSUI
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Publication number: 20230202046Abstract: A control system comprises one or more processors. The one or more processors are configured to extract a feature of a person in an image captured by a camera, classify the person into a preset first group or a preset second group based on the feature, estimate a moving speed of the person belonging to the second group, and switch, based on the moving speed, a mode between a high-load mode for performing a high-load process and a low-load mode for performing a process with a load lower than a load in the high-load mode.Type: ApplicationFiled: October 27, 2022Publication date: June 29, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kei YOSHIKAWA, Shiro ODA, Susumu SHIMIZU, Takeshi MATSUI
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Publication number: 20230152811Abstract: A robot control system according to an embodiment is configured to control a mobile robot configured to autonomously move by referring to a map, the robot control system being further configured to: acquire a distance to a nearby object measured by using a range sensor; specify a position of the nearby object on the map according to the distance from a position of the mobile robot to the nearby object; estimate a movement vector indicating a moving speed and a moving direction of the nearby object according to a change in the distance to the nearby object; add a cost for restricting a movement of the mobile robot on the map; and perform control so that the mobile robot moves according to the cost updated according to a result of measurement by the range sensor.Type: ApplicationFiled: November 8, 2022Publication date: May 18, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuta WATANABE, Shiro ODA, Kei YOSHIKAWA, Yukinori KURAHASHI, Takeshi MATSUI
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Publication number: 20230150132Abstract: A robot control system according to an embodiment is configured to control a mobile robot configured to autonomously move by referring to a map, the robot control system being further configured to: acquire a distance to a nearby object measured by using a range sensor; specify a position of the nearby object on the map according to the distance from a position of the mobile robot to the nearby object; estimate a moving direction of the nearby object in a lateral direction in accordance with a change of the distance to the nearby object, the lateral direction being a direction defined with reference to a traveling direction of the mobile robot; and change a route so that the mobile robot travels on a side opposite to the moving direction of the nearby object.Type: ApplicationFiled: September 30, 2022Publication date: May 18, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuta WATANABE, Shiro ODA, Kei YOSHIKAWA, Yukinori KURAHASHI, Takeshi MATSUI
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Publication number: 20230150130Abstract: A robot control system according to an embodiment is configured to control a mobile robot configured to autonomously move by referring to a map, the robot control system being further configured to: acquire a distance to a nearby object measured by using a range sensor; specify a position of the nearby object on the map according to the distance from a position of the mobile robot to the nearby object; estimate a movement vector indicating a moving speed and a moving direction of the nearby object according to a change in the distance to the nearby object; add a cost for restricting a movement of the mobile robot on the map; and perform control so that the mobile robot moves according to the cost updated according to a result of measurement by the range sensor.Type: ApplicationFiled: November 8, 2022Publication date: May 18, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuta WATANABE, Shiro ODA, Kei YOSHIKAWA, Yukinori KURAHASHI