Patents by Inventor Tetsuya Kuwahara
Tetsuya Kuwahara 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: 11952286Abstract: Provided are: an Mn ferrite powder characterized by including a plurality of ferrite particles, having a volume-average particle diameter of 1-10 ?m, and having a 2.106 ?m volume-based cumulative distribution (sieved) of 0.1-50.0 vol %; and a resin composition characterized by including said powder and a resin material.Type: GrantFiled: February 6, 2019Date of Patent: April 9, 2024Assignee: POWDERTECH CO., LTD.Inventors: Koji Aga, Takashi Kojima, Kazutaka Ishii, Tetsuya Igarashi, Sho Kuwahara
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Patent number: 11930417Abstract: A travel system includes a travelling carriage that travels on a predetermined track, access points including first APs that wirelessly communicate with the travelling carriage and second APs that wirelessly communicate with the travelling carriage in a communication slot different from a communication slot of the first APs, and a controller that, via any one of the access points, receives from the travelling carriage position information indicating the current position of the travelling carriage, and transmits to the traveling carriage a travel instruction to control travel of the travelling carriage. The travelling carriage includes a wireless interface that wirelessly communicates with one of the first APs, and wirelessly communicates with one of the second APs when wireless communication with the one of the first APs is not possible.Type: GrantFiled: September 3, 2019Date of Patent: March 12, 2024Assignee: MURATA MACHINERY, LTD.Inventors: Wataru Kitamura, Tetsuya Kuwahara
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Publication number: 20230409022Abstract: A communication apparatus includes a wide-area wireless communicator to transmit and receive information to and from a transport vehicle via a wireless access point through wide-area wireless communication, a short-range wireless communicator to transmit and receive information to and from a communication device through short-range wireless communication with a communication range narrower than a communication range of the wide-area wireless communication, and a controller configured or programmed to convert the information received by the wide-area wireless communicator from wide-area wireless communication information into short-range wireless communication information, and output the short-range wireless communication information to the short-range wireless communicator, and convert the information received by the short-range wireless communicator from short-range wireless communication information into wide-area wireless communication information, and output the wide-area wireless communication informatioType: ApplicationFiled: October 29, 2021Publication date: December 21, 2023Inventors: Tetsuya KUWAHARA, Munekuni OSHIMA, Wataru KITAMURA
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Patent number: 11496336Abstract: A method includes: (a) transmitting, by the control device, control data containing one of the plurality of second parameters to the relay device; (b) determining, by at least one of the control device or the relay device, whether the one of the plurality of second parameters matches one of the plurality of first parameters; and (c) transmitting, by the relay device, the control data received from the control device in (a), using one of the plurality of interfaces of the relay device for which the one of the plurality of second parameters is set if it is determined in the determining that the one of the plurality of first parameters matches the one of the plurality of second parameters.Type: GrantFiled: December 14, 2018Date of Patent: November 8, 2022Assignee: Murata Machinery, Ltd.Inventors: Toshihiro Fujiwara, Shigeru Yamamoto, Tetsuya Kuwahara
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Patent number: 11323857Abstract: A communication method includes: switching an operation mode of a first station from a first operation mode to a second operation mode; transmitting a first signal from the first station to a second station; transmitting data from the second station to the first station in response to the first signal; storing the data received by the first station from the second station into a storage of the first station; switching the operation mode of the first station from the second operation mode to the first operation mode; transmitting a second signal from an access point to the first station; and transmitting the data stored into the storage from the first station operating in the first operation mode to the access point in response to the second signal.Type: GrantFiled: October 5, 2018Date of Patent: May 3, 2022Assignee: Murata Machinery, Ltd.Inventors: Eiji Hosobuchi, Tetsuya Kuwahara
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Publication number: 20220046509Abstract: A travel system includes a travelling carriage that travels on a predetermined track, access points including first APs that wirelessly communicate with the travelling carriage and second APs that wirelessly communicate with the travelling carriage in a communication slot different from a communication slot of the first APs, and a controller that, via any one of the access points, receives from the travelling carriage position information indicating the current position of the travelling carriage, and transmits to the traveling carriage a travel instruction to control travel of the travelling carriage. The travelling carriage includes a wireless interface that wirelessly communicates with one of the first APs, and wirelessly communicates with one of the second APs when wireless communication with the one of the first APs is not possible.Type: ApplicationFiled: September 3, 2019Publication date: February 10, 2022Inventors: Wataru KITAMURA, Tetsuya KUWAHARA
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Publication number: 20210349472Abstract: In a control method, a controller obtains equipment specifying information that specifies an equipment to which a transportable object is to be delivered, and a transport carriage obtains carriage position information indicating the position of the transport carriage. Any one of the transport carriage, a specific communication device, and the controller calculates the distance between the transport carriage and the specific communication device based on delivery position information indicating the position of a specific equipment and the carriage position information, and determines whether the distance is not more than a predetermined distance.Type: ApplicationFiled: August 30, 2019Publication date: November 11, 2021Inventors: Munekuni OSHIMA, Yasuhisa ITO, Tetsuya KUWAHARA
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Patent number: 11165602Abstract: A communication system includes a plurality of controlled devices each including communication IFs compliant with EtherCAT standards; network connected to communication IF of each of controlled devices, network connected to communication IF of each of controlled devices; control apparatus capable of sending out first control data for controlling controlled devices to network; control apparatus capable of sending out second control data for controlling controlled devices to network; and main control apparatus that performs first control that causes control apparatus to send out the first control data. Main control apparatus further performs second control that causes control apparatus to send out the second control data when the sent first control data fails to reach at least one of controlled devices.Type: GrantFiled: October 22, 2018Date of Patent: November 2, 2021Assignee: Murata Machinery, Ltd.Inventors: Tetsuya Kuwahara, Toshihiro Fujiwara
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Patent number: 11121016Abstract: A method for controlling a conveyance system includes transmitting, by a specific conveyance vehicle specific transfer location information to a management device, extracting from correspondence information by the management device, specific communication-device address information corresponding to the specific transfer location information received from the specific conveyance vehicle, and transmitting to the specific conveyance vehicle by the management device the specific communication-device address information extracted, and executing by the specific conveyance vehicle using the specific communication-device address information received from the management device communication with a first communication device connected to a first semiconductor manufacturing device to transfer a FOUP between the first semiconductor manufacturing device and the specific conveyance vehicle.Type: GrantFiled: December 18, 2018Date of Patent: September 14, 2021Assignee: MURATA MACHINERY, LTD.Inventors: Wataru Kitamura, Tetsuya Kuwahara
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Publication number: 20210265184Abstract: A communication method of a transport system including transport carriages each transporting a transported object, and communication devices connected one-to-one with loading ports onto which the transported objects are loaded. The communication devices are communicably connected to each other in advance. The communication method includes transmitting, from a specific transport carriage to the communication devices, a first signal having a specific communication as a final transmission destination, and receiving, in the specific communication device, the first signal from the specific transport carriage through a communication channel that passes through another communication device. The first signal is a signal communicated for the specific transport carriage to transfer the transported object to and from a specific loading port connected one-to-one with the specific communication device.Type: ApplicationFiled: April 19, 2019Publication date: August 26, 2021Inventors: Wataru KITAMURA, Munekuni OSHIMA, Tetsuya KUWAHARA
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Patent number: 11082907Abstract: An unmanned traveling vehicle includes a block information acquirer that acquires position information on blocks each of which is a range of positions in an area within which the unmanned traveling vehicle is allowed to travel and channel information indicating a wireless channel available inside each of the blocks, a position acquirer that acquires a current position of the unmanned traveling vehicle, a determiner that identifies a block including the current position acquired by the position acquirer from among the blocks with reference to the position information, and determines, with reference to the channel information, a wireless channel to be used for wireless communication inside the block identified, and a communicator that performs the wireless communication by the wireless channel determined by the determiner and indicated by the channel information.Type: GrantFiled: December 13, 2017Date of Patent: August 3, 2021Assignee: MURATA MACHINERY, LTD.Inventors: Tetsuya Kuwahara, Yoshinori Nakai, Yasuhisa Ito, Wataru Kitamura
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Patent number: 11044226Abstract: A conversion device for interconversion of wired communication and wireless communication includes a wired IF, a wireless IF, a converter that retains a first MAC address of a communication terminal connected to the wired IF and uses the first MAC address to convert wired communication in which the communication terminal is a destination into wireless communication and convert wireless communication in which the communication terminal is a source into wired communication between the wired IF and the wireless IF, and a controller that receives a communication packet including an IP address and a second MAC address through the wireless IF, and when the second MAC address included in the received communication packet is the same as the first MAC address, sets the IP address included in the received communication packet as an IP address of the conversion device.Type: GrantFiled: December 19, 2017Date of Patent: June 22, 2021Assignee: MURATA MACHINERY, LTD.Inventors: Tetsuya Kuwahara, Eiji Sugihara, Yuya Kamitake, Masaaki Toda
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Publication number: 20210184892Abstract: A method includes: (a) transmitting, by the control device, control data containing one of the plurality of second parameters to the relay device; (b) determining, by at least one of the control device or the relay device, whether the one of the plurality of second parameters matches one of the plurality of first parameters; and (c) transmitting, by the relay device, the control data received from the control device in (a), using one of the plurality of interfaces of the relay device for which the one of the plurality of second parameters is set if it is determined in the determining that the one of the plurality of first parameters matches the one of the plurality of second parameters.Type: ApplicationFiled: December 14, 2018Publication date: June 17, 2021Inventors: Toshihiro Fujiwara, Shigeru Yamamoto, Tetsuya Kuwahara
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Publication number: 20210136648Abstract: An unmanned traveling vehicle includes a block information acquirer that acquires position information on blocks each of which is a range of positions in an area within which the unmanned traveling vehicle is allowed to travel and channel information indicating a wireless channel available inside each of the blocks, a position acquirer that acquires a current position of the unmanned traveling vehicle, a determiner that identifies a block including the current position acquired by the position acquirer from among the blocks with reference to the position information, and determines, with reference to the channel information, a wireless channel to be used for wireless communication inside the block identified, and a communicator that performs the wireless communication by the wireless channel determined by the determiner and indicated by the channel information.Type: ApplicationFiled: December 13, 2017Publication date: May 6, 2021Inventors: Tetsuya KUWAHARA, Yoshinori NAKAI, Yasuhisa ITO, Wataru KITAMURA
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Publication number: 20210057254Abstract: A method for controlling a conveyance system includes transmitting, by a specific conveyance vehicle specific transfer location information to a management device, extracting from correspondence information by the management device, specific communication-device address information corresponding to the specific transfer location information received from the specific conveyance vehicle, and transmitting to the specific conveyance vehicle by the management device the specific communication-device address information extracted, and executing by the specific conveyance vehicle using the specific communication-device address information received from the management device communication with a first communication device connected to a first semiconductor manufacturing device to transfer a FOUP between the first semiconductor manufacturing device and the specific conveyance vehicle.Type: ApplicationFiled: December 18, 2018Publication date: February 25, 2021Inventors: Wataru KITAMURA, Tetsuya KUWAHARA
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Patent number: 10829843Abstract: A method for producing an aluminum wire that has high strength and high conductivity even when reduced in diameter while having excellent elongation and improved in productivity. A method for producing an aluminum wire includes a solution step of subjecting a heat-treatable aluminum alloy material to a solution treatment, a wire-drawing step of subjecting the solution-treated aluminum alloy material to wire-drawing processing, a softening step of subjecting the wire-drawing processed aluminum alloy material to a softening treatment in a short time within 10 seconds, and an aging step of subjecting the softening-treated aluminum alloy material to an aging treatment.Type: GrantFiled: June 4, 2015Date of Patent: November 10, 2020Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumitoshi Imasato, Yasuyuki Otsuka, Kinji Taguchi, Hiroyuki Kobayashi, Tetsuya Kuwahara, Misato Kusakari, Kensuke Yamada
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Publication number: 20200295967Abstract: A communication system includes a plurality of controlled devices each including communication IFs compliant with EtherCAT standards; network connected to communication IF of each of controlled devices, network connected to communication IF of each of controlled devices; control apparatus capable of sending out first control data for controlling controlled devices to network; control apparatus capable of sending out second control data for controlling controlled devices to network; and main control apparatus that performs first control that causes control apparatus to send out the first control data. Main control apparatus further performs second control that causes control apparatus to send out the second control data when the sent first control data fails to reach at least one of controlled devices.Type: ApplicationFiled: October 22, 2018Publication date: September 17, 2020Inventors: Tetsuya Kuwahara, Toshihiro Fujiwara
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Publication number: 20200288285Abstract: A communication method includes: switching an operation mode of a first station from a first operation mode to a second operation mode; transmitting a first signal from the first station to a second station; transmitting data from the second station to the first station in response to the first signal; storing the data received by the first station from the second station into a storage of the first station; switching the operation mode of the first station from the second operation mode to the first operation mode; transmitting a second signal from an access point to the first station; and transmitting the data stored into the storage from the first station operating in the first operation mode to the access point in response to the second signal.Type: ApplicationFiled: October 5, 2018Publication date: September 10, 2020Inventors: Eiji Hosobuchi, Tetsuya Kuwahara
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Publication number: 20190386952Abstract: A conversion device for interconversion of wired communication and wireless communication includes a wired IF, a wireless IF, a converter that retains a first MAC address of a communication terminal connected to the wired IF and uses the first MAC address to convert wired communication in which the communication terminal is a destination into wireless communication and convert wireless communication in which the communication terminal is a source into wired communication between the wired IF and the wireless IF, and a controller that receives a communication packet including an IP address and a second MAC address through the wireless IF, and when the second MAC address included in the received communication packet is the same as the first MAC address, sets the IP address included in the received communication packet as an IP address of the conversion device.Type: ApplicationFiled: December 19, 2017Publication date: December 19, 2019Inventors: Tetsuya KUWAHARA, Eiji SUGIHARA, Yuya KAMITAKE, Masaaki TODA
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Publication number: 20170226615Abstract: A method for producing an aluminum wire that has high strength and high conductivity even when reduced in diameter while having excellent elongation and improved in productivity. A method for producing an aluminum wire includes a solution step of subjecting a heat-treatable aluminum alloy material to a solution treatment, a wire-drawing step of subjecting the solution-treated aluminum alloy material to wire-drawing processing, a softening step of subjecting the wire-drawing processed aluminum alloy material to a softening treatment in a short time within 10 seconds, and an aging step of subjecting the softening-treated aluminum alloy material to an aging treatment.Type: ApplicationFiled: June 4, 2015Publication date: August 10, 2017Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumitoshi IMASATO, Yasuyuki OTSUKA, Kinji TAGUCHI, Hiroyuki KOBAYASHI, Tetsuya KUWAHARA, Misato KUSAKARI, Kensuke YAMADA