Patents by Inventor Kunihiko Ogawa
Kunihiko Ogawa 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: 11956092Abstract: A communication system includes a master device, a connector, a superordinate trunk cable connecting the master device and the connector, a superordinate slave device connected to the connector, a subordinate slave device, and a subordinate trunk cable connecting the connector and the subordinate slave device. The connector includes a superordinate power line via which power is supplied from the master device, a power branching unit to divide the superordinate power line into a first power line connected to the superordinate slave device and a second power line connected to the subordinate slave device, a superordinate signal line via which communication data between the master device and the superordinate slave device is configured to be transmitted, and a subordinate signal line via which communication data between the superordinate slave device and the subordinate slave device is configured to be transmitted.Type: GrantFiled: July 21, 2021Date of Patent: April 9, 2024Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu Koga, Kunihiko Ogawa, Isamu Matsumura, Junya Hisamatsu, Yasuhiro Matsutani
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Patent number: 11770235Abstract: A controller includes circuitry configured to: synchronize a master clock with an external global clock and set a master time based on the master clock; synchronize a controller clock with the master clock and perform time synchronization to synchronize a controller time based on the controller clock with the master time; transmit controller time data indicating the synchronized controller time to at least one local device; set a plurality of time windows corresponding to a plurality of clock cycles of a clock signal for the time synchronization; determine whether one clock cycle of the plurality of clock cycles has started within one time window of the plurality of time windows, the one time window corresponding to the one clock cycle; and suspend the time synchronization corresponding to the one clock cycle, in response to determining that the one clock cycle has not started within the one time window.Type: GrantFiled: February 17, 2022Date of Patent: September 26, 2023Inventors: Ryota Moriwaka, Kunihiko Ogawa, Takayuki Nakamura, Norihito Mizuguchi
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Publication number: 20220278818Abstract: A controller includes circuitry configured to: synchronize a master clock with an external global clock and set a master time based on the master clock; synchronize a controller clock with the master clock and perform time synchronization to synchronize a controller time based on the controller clock with the master time; transmit controller time data indicating the synchronized controller time to at least one local device; set a plurality of time windows corresponding to a plurality of clock cycles of a clock signal for the time synchronization; determine whether one clock cycle of the plurality of clock cycles has started within one time window of the plurality of time windows, the one time window corresponding to the one clock cycle; and suspend the time synchronization corresponding to the one clock cycle, in response to determining that the one clock cycle has not started within the one time window.Type: ApplicationFiled: February 17, 2022Publication date: September 1, 2022Inventors: Ryota MORIWAKA, Kunihiko OGAWA, Takayuki NAKAMURA, Norihito MIZUGUCHI
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Publication number: 20210351949Abstract: A communication system includes a master device, a connector, a superordinate trunk cable connecting the master device and the connector, a superordinate slave device connected to the connector, a subordinate slave device, and a subordinate trunk cable connecting the connector and the subordinate slave device. The connector includes a superordinate power line via which power is supplied from the master device, a power branching unit to divide the superordinate power line into a first power line connected to the superordinate slave device and a second power line connected to the subordinate slave device, a superordinate signal line via which communication data between the master device and the superordinate slave device is configured to be transmitted, and a subordinate signal line via which communication data between the superordinate slave device and the subordinate slave device is configured to be transmitted.Type: ApplicationFiled: July 21, 2021Publication date: November 11, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu KOGA, Kunihiko OGAWA, Isamu MATSUMURA, Junya HISAMATSU, Yasuhiro MATSUTANI
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Patent number: 10498522Abstract: A sensor includes an upper-level connection port, a lower-level connection port, a command receiver, a wait time period setter, and a motor-related information obtainer. The upper-level connection port is configured to communicate with an upper-level sensor or an upper-level controller. The lower-level connection port is configured to communicate with a lower-level sensor. The command receiver is configured to receive a command from the upper-level controller. The wait time period setter is configured to set a wait time period based on an order of connection of at least the upper-level sensor or the upper-level controller, the sensor, and the lower-level sensor. The motor-related information obtainer is configured to obtain motor-related information, which relates to a motor, at a timing determined by the command and at a timing based on the wait time period.Type: GrantFiled: May 20, 2016Date of Patent: December 3, 2019Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko Ogawa, Ryota Moriwaka, Yasuhiro Matsutani
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Patent number: 10454346Abstract: An encoder includes a first disc and a second disc, a first detector, a second detector, a rotation count detector, and a sender. The first disc and the second disc are mounted on a rotation shaft of a motor. The first detector is configured to detect a rotation position of the first disc within one rotation of the first disc. The second detector is configured to detect that the second disc has made one rotation. The rotation count detector is configured to count a rotation count of the second disc based on an output from the second detector. The sender is configured to send sending data including the rotation position and the rotation count.Type: GrantFiled: May 20, 2016Date of Patent: October 22, 2019Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko Ogawa, Keita Ogoh, Yasuhiro Matsutani
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Patent number: 10121365Abstract: A sensor system includes a controller and sensors. The controller is to transmit a signal. The sensors are connected to the controller in series via at least one cable to sequentially transfer the signal transmitted from the controller via the at least one cable.Type: GrantFiled: March 17, 2017Date of Patent: November 6, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventor: Kunihiko Ogawa
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Patent number: 10072948Abstract: An encoder includes a rotation position sensor, a first addition information generator, an identification information generator, and a sender. The rotation position detector is configured to detect a rotation position within one rotation of a rotation shaft of a motor. The first addition information generator is configured to generate first addition information for a period at least longer than a data sending period. The identification information generator is configured to generate identification information by which at least the first addition information is identifiable as information to be sent. The sender is configured to send, for the data sending period, sending data including the rotation position within one rotation. The sending data includes first sending data including the rotation position within one rotation, the identification information, and the first addition information.Type: GrantFiled: May 20, 2016Date of Patent: September 11, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko Ogawa, Keita Ogoh
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Publication number: 20170193817Abstract: A sensor system includes a controller and sensors. The controller is to transmit a signal. The sensors are connected to the controller in series via at least one cable to sequentially transfer the signal transmitted from the controller via the at least one cable.Type: ApplicationFiled: March 17, 2017Publication date: July 6, 2017Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventor: Kunihiko OGAWA
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Publication number: 20160344429Abstract: An encoder includes a rotation position sensor, a first addition information generator, an identification information generator, and a sender. The rotation position detector is configured to detect a rotation position within one rotation of a rotation shaft of a motor. The first addition information generator is configured to generate first addition information for a period at least longer than a data sending period. The identification information generator is configured to generate identification information by which at least the first addition information is identifiable as information to be sent. The sender is configured to send, for the data sending period, sending data including the rotation position within one rotation. The sending data includes first sending data including the rotation position within one rotation, the identification information, and the first addition information.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko OGAWA, Keita OGOH
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Publication number: 20160344266Abstract: A sensor includes an upper-level connection port, a lower-level connection port, a command receiver, a wait time period setter, and a motor-related information obtainer. The upper-level connection port is configured to communicate with an upper-level sensor or an upper-level controller. The lower-level connection port is configured to communicate with a lower-level sensor. The command receiver is configured to receive a command from the upper-level controller. The wait time period setter is configured to set a wait time period based on an order of connection of at least the upper-level sensor or the upper-level controller, the sensor, and the lower-level sensor. The motor-related information obtainer is configured to obtain motor-related information, which relates to a motor, at a timing determined by the command and at a timing based on the wait time period.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko OGAWA, Ryota MORIWAKA, Yasuhiro MATSUTANI
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Publication number: 20160344267Abstract: An encoder includes a first disc and a second disc, a first detector, a second detector, a rotation count detector, and a sender. The first disc and the second disc are mounted on a rotation shaft of a motor. The first detector is configured to detect a rotation position of the first disc within one rotation of the first disc. The second detector is configured to detect that the second disc has made one rotation. The rotation count detector is configured to count a rotation count of the second disc based on an output from the second detector. The sender is configured to send sending data including the rotation position and the rotation count.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko OGAWA, Keita OGOH, Yasuhiro MATSUTANI
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Patent number: 6740606Abstract: A laminated sheet having electromagnetic wave shielding effects and a manufacturing method therefor are provided wherein the laminated sheet is transparent, has electromagnetic wave shielding effects and is easily manufactured, moreover, an earthing terminal can be easily connected to the laminated sheet, and post-processing such as ultrasonic adhesion and the like can be easily conducted on the laminated sheet. In the manufacturing method, a conductive mesh-like sheet and a thermoplastic resin sheet are positioned between two molding plates and heated, these sheets are integrally laminated by means of the application of pressure between molding plates. In addition, as the above-mentioned thermoplastic resin sheet, a thermoplastic resin sheet having at least one resin layer which has a thickness which is two times or greater than the thickness of the conductive mesh-like sheet and which has uniform thermal properties is used.Type: GrantFiled: April 17, 2002Date of Patent: May 25, 2004Assignees: Shoritsu Plastics Ind. Co., Ltd., Kuraray Co., Ltd.Inventors: Sadao Umezawa, Kihachiro Ishiguro, Akira Hiruma, Kunihiko Ogawa, Yoshikane Takagi
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Publication number: 20020108704Abstract: A laminated sheet having electromagnetic wave shielding effects and a manufacturing method therefor are provided wherein the laminated sheet is transparent, has electromagnetic wave shielding effects and is easily manufactured, moreover, an earthing terminal can be easily connected to the laminated sheet, and post-processing such as ultrasonic adhesion and the like can be easily conducted on the laminated sheet.Type: ApplicationFiled: April 17, 2002Publication date: August 15, 2002Applicant: SHORITSU PLASTICS IND. CO., LTD.Inventors: Sadao Umezawa, Kihachiro Ishiguro, Akira Hiruma, Kunihiko Ogawa, Yoshikane Takagi
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Patent number: 6398899Abstract: A laminated sheet having electromagnetic wave shielding effects and a manufacturing method therefor are provided wherein the laminated sheet is transparent, has electromagnetic wave shielding effects and is easily manufactured, moreover, an earthing terminal can be easily connected to the laminated sheet, and post-processing such as ultrasonic adhesion and the like can be easily conducted on the laminated sheet.Type: GrantFiled: January 22, 1998Date of Patent: June 4, 2002Assignees: Shoritsu Plastics Ind. Co., Ltd., Kuraray Co., Ltd.Inventors: Sadao Umezawa, Kihachiro Ishiguro, Akira Hiruma, Kunihiko Ogawa, Yoshikane Takagi
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Patent number: 4931344Abstract: A fastener component is provided with hook-like interlocking elements on the front side of a substrate sheet and an anchor member on the back side. The fastener component is provided with at least one flat portion void of the interlocking elements on the front side to make the fastener component flexible or pliable to fit a curved or bent portion of a molded cushion body or other molded structures on which the fastener component is to be anchored. The fastening element-free flat portions may be provided along the longitudinal side edges of the fastener component for mounting thereon magnetic metal strips which are attracted by magnets embedded in a mold to fix the fastener component in position in the mold during a molding process.Type: GrantFiled: December 15, 1988Date of Patent: June 5, 1990Assignee: Kuraray Company, Ltd.Inventors: Kunihiko Ogawa, Yoshio Noguchi
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Patent number: 4842916Abstract: There is provided a hook type separable fastener component which can be integrally attached to various synthetic resin moldings for cushions etc. by a simple operation.Type: GrantFiled: December 31, 1987Date of Patent: June 27, 1989Assignee: Kuraray Company Ltd.Inventors: Kunihiko Ogawa, Yoshio Noguchi