Patents by Inventor Junji Obata
Junji Obata 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: 11916563Abstract: Provided are an analog-to-digital (AD) converter, a sensor processing circuit, and a sensor system capable of improving responsiveness of feedback control. AD converter includes input part, AD conversion part, first output part, and second output part. The analog signal output from sensor is input to input part. AD conversion part digitally converts an analog signal to generate first digital data and second digital data. First output part outputs the first digital data to control circuit. Second output part outputs the second digital data to sensor before first output part outputs the first digital data.Type: GrantFiled: March 9, 2020Date of Patent: February 27, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Jun'Ichi Naka, Koji Obata, Junji Nakatsuka, Hiroki Yoshino, Masaaki Nagai
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Patent number: 11539248Abstract: A power estimator calculates first estimated power values based on levels of test signals received from power receiver apparatuses, each first estimated power value indicating estimated received power of a corresponding power receiver apparatus when a power transmitter apparatus transmits power to the power receiver apparatuses. A signal transmitting circuit transmits each first estimated power value to a corresponding power receiver apparatus. A signal receiving circuit receives second estimated power values from the power receiver apparatuses, each second estimated power value indicating estimated received power of a corresponding power receiver apparatus when other power transmitter apparatuses transmit power to the power receiver apparatuses.Type: GrantFiled: March 14, 2019Date of Patent: December 27, 2022Assignee: OMRON CORPORATIONInventors: Akito Murai, Tetsuya Nosaka, Junji Obata
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Patent number: 11313907Abstract: A control panel includes power supply circuits for supplying power supply voltages to loads and a connection part for connecting wiring. The control panel comprises a system current detection unit that is for detecting a sudden increase in system current that is from a power system and flows through the control panel and includes a second current transformer, and individual current detection units that are for detecting a sudden increase in the individual current of one of the power supply circuits and include first current transformers. An arc discharge detection unit identifies an arc discharge occurring within the control panel separately from a surge flowing into the system based on a system current detection signal and individual current detection signals.Type: GrantFiled: January 22, 2019Date of Patent: April 26, 2022Assignee: OMRON CorporationInventors: Katsuya Marumo, Yasushi Kawashima, Hajime Umeki, Junji Obata, Keisuke Yano
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Publication number: 20220060059Abstract: A power estimator calculates first estimated power values based on levels of lest signals received from power receiver apparatuses, each first estimated power value indicating estimated received power of a corresponding power receiver apparatus when a power transmitter apparatus transmits power to the power receiver apparatuses. A signal transmitting circuit transmits each first estimated power value to a corresponding power receiver apparatus. A signal receiving circuit receives second estimated power values from the power receiver apparatuses, each second estimated power value indicating estimated received power of a corresponding power receiver apparatus when other power transmitter apparatuses transmit power to the power receiver apparatuses.Type: ApplicationFiled: March 14, 2019Publication date: February 24, 2022Inventors: Akito MURAI, Tetsuya NOSAKA, Junji OBATA
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Patent number: 10756771Abstract: A wireless switch comprising: a movable section provided to be freely displaceable; an operation unit elastically held by the movable section and, when in a non-neutral state, vibrating as a result of an action of elastic force that causes return to a neutral state and displacing the movable section in a direction corresponding to a direction of the vibration; a power generation unit generating a voltage of a polarity corresponding to a direction of displacement when the movable section has been displaced; a wireless transmission unit wirelessly transmitting a signal on the basis of power generated by the power generation unit; and a voltage supply control circuit, when the operation unit in the neutral state has been operated such that the operation unit is brought into a non-neutral state, supplying a voltage to the wireless transmission unit using power generated by the power generation unit at a time of an initial state change of the operation unit and then disabling voltage supply to the wireless transmiType: GrantFiled: December 20, 2018Date of Patent: August 25, 2020Assignee: OMRON CorporationInventors: Katsuya Marumo, Yasushi Kawashima, Hajime Umeki, Junji Obata, Keisuke Yano
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Publication number: 20200228153Abstract: A wireless switch comprising: a movable section provided to be freely displaceable; an operation unit elastically held by the movable section and, when in a non-neutral state, vibrating as a result of an action of elastic force that causes return to a neutral state and displacing the movable section in a direction corresponding to a direction of the vibration; a power generation unit generating a voltage of a polarity corresponding to a direction of displacement when the movable section has been displaced; a wireless transmission unit wirelessly transmitting a signal on the basis of power generated by the power generation unit; and a voltage supply control circuit, when the operation unit in the neutral state has been operated such that the operation unit is brought into a non-neutral state, supplying a voltage to the wireless transmission unit using power generated by the power generation unit at a time of an initial state change of the operation unit and then disabling voltage supply to the wireless transmiType: ApplicationFiled: December 20, 2018Publication date: July 16, 2020Applicant: OMRON CorporationInventors: Katsuya MARUMO, Yasushi KAWASHIMA, Hajime UMEKI, Junji OBATA, Keisuke YANO
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Publication number: 20200185903Abstract: A control panel includes power supply circuits for supplying power supply voltages to loads and a connection part for connecting wiring. The control panel comprises a system current detection unit that is for detecting a sudden increase in system current that is from a power system and flows through the control panel and includes a second current transformer, and individual current detection units that are for detecting a sudden increase in the individual current of one of the power supply circuits and include first current transformers. An arc discharge detection unit identifies an arc discharge occurring within the control panel separately from a surge flowing into the system based on a system current detection signal and individual current detection signals.Type: ApplicationFiled: January 22, 2019Publication date: June 11, 2020Applicant: OMRON CorporationInventors: Katsuya MARUMO, Yasushi KAWASHIMA, Hajime UMEKI, Junji OBATA, Keisuke YANO
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Patent number: 10547396Abstract: A state display apparatus includes a plurality of state display LEDs and a plurality of margin display LEDs, and when receiving a radio signal indicating that a state of a management object has changed, performs light on/off control of a state display LED associated with the management object, and controls a margin display LED arranged above the state display LED so that whether or not a reception strength of the received radio signal is equal to or higher than a prescribed threshold is indicated by a lighted state/a turned-off state of the margin display LED on/off.Type: GrantFiled: February 26, 2018Date of Patent: January 28, 2020Assignee: OMRON CorporationInventors: Soji Ohmae, Hajime Umeki, Junji Obata, Yasushi Kawashima, Hiroshi Okabe
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Patent number: 10453634Abstract: A wireless switch includes a cover member, a button member, a first plunger, a second plunger, a trigger spring, a return spring, a shaft, a housing, and a power generation module. An intermediate member constituted of the first plunger, the second plunger, the trigger spring, the return spring, and the shaft is connected between the button member and the power generation module. The intermediate member prevents a position of the shaft making contact with the power generating shaft of the power generation module from changing, and causes stress to build up in the trigger spring, until a movement distance of the button member reaches a predetermined distance. The intermediate member releases the stress built up in the trigger spring and pushes the power generation shaft with the shaft using the released stress upon the movement distance of the button member reaching the predetermined distance.Type: GrantFiled: October 19, 2017Date of Patent: October 22, 2019Assignee: OMRON CorporationInventors: Katsuya Marumo, Ken Tamura, Kazuyuki Tsukimori, Hiroshi Shiino, Yasushi Kawashima, Hajime Umeki, Junji Obata, Keisuke Yano
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Patent number: 10304639Abstract: A wireless switch includes a button member, a power generation module, an RF module, and a notification unit. The button member is mounted in a housing, and is configured to move. The power generation module is configured to generate power using energy produced by the movement of the button member. The RF module is connected to the power generation module, and is configured to transmit a switch signal using power generated by the power generation module. The notification unit is configured to operate using power generated by the power generation module. The RF module controls the notification unit in one or more notification states according to a strength or details of a reception state signal corresponding to the transmitted switch signal.Type: GrantFiled: October 16, 2017Date of Patent: May 28, 2019Assignee: OMRON CorporationInventors: Katsuya Marumo, Ken Tamura, Kazuyuki Tsukimori, Hiroshi Shiino, Yasushi Kawashima, Hajime Umeki, Junji Obata, Keisuke Yano
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Publication number: 20180309524Abstract: A state display apparatus includes a plurality of state display LEDs and a plurality of margin display LEDs, and when receiving a radio signal indicating that a state of a management object has changed, performs light on/off control of a state display LED associated with the management object, and controls a margin display LED arranged above the state display LED so that whether or not a reception strength of the received radio signal is equal to or higher than a prescribed threshold is indicated by a lighted state/a turned-off state of the margin display LED on/off.Type: ApplicationFiled: February 26, 2018Publication date: October 25, 2018Applicant: OMRON CorporationInventors: Soji OHMAE, Hajime UMEKI, Junji OBATA, Yasushi KAWASHIMA, Hiroshi OKABE
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Publication number: 20180158626Abstract: A wireless switch includes a button member, a power generation module, an RF module, and a notification unit. The button member is mounted in a housing, and is configured to move. The power generation module is configured to generate power using energy produced by the movement of the button member. The RF module is connected to the power generation module, and is configured to transmit a switch signal using power generated by the power generation module. The notification unit is configured to operate using power generated by the power generation module. The RF module controls the notification unit in one or more notification states according to a strength or details of a reception state signal corresponding to the transmitted switch signal.Type: ApplicationFiled: October 16, 2017Publication date: June 7, 2018Applicant: OMRON CorporationInventors: Katsuya MARUMO, Ken TAMURA, Kazuyuki TSUKIMORI, Hiroshi SHIINO, Yasushi KAWASHIMA, Hajime UMEKI, Junji OBATA, Keisuke YANO
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Publication number: 20180158632Abstract: A wireless switch includes a cover member, a button member, a first plunger, a second plunger, a trigger spring, a return spring, a shaft, a housing, and a power generation module. An intermediate member constituted of the first plunger, the second plunger, the trigger spring, the return spring, and the shaft is connected between the button member and the power generation module. The intermediate member prevents a position of the shaft making contact with the power generating shaft of the power generation module from changing, and causes stress to build up in the trigger spring, until a movement distance of the button member reaches a predetermined distance. The intermediate member releases the stress built up in the trigger spring and pushes the power generation shaft with the shaft using the released stress upon the movement distance of the button member reaching the predetermined distance.Type: ApplicationFiled: October 19, 2017Publication date: June 7, 2018Applicant: OMRON CorporationInventors: Katsuya MARUMO, Ken TAMURA, Kazuyuki TSUKIMORI, Hiroshi SHIINO, Yasushi KAWASHIMA, Hajime UMEKI, Junji OBATA, Keisuke YANO
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Patent number: 7127997Abstract: The present invention relates to a friction drive conveyor including carriers 1, which can be propelled along a track by frictional wheels 30 fitted along the track. Each frictional wheel 30 can be driven by a brakeless motor 29. A sensor 32 senses whether each frictional wheel 30 is in contact with any one frictional surface 15 of the carriers 1. The track includes a section along which the frictional wheels 30 are supported at regular intervals equal to or slightly shorter than the total length L of the frictional surfaces 15 on each side of each carrier 1. On the basis of a signal output from each sensor 32, a controller 24 so controls the associated brakeless motor 29 as to start rotating the associated frictional wheel 30 in contact with any one frictional surface 15 when the forward next wheel 30 gets free of the frictional surfaces 15, and as to stop driving the frictional wheel 30 having got free of the frictional surfaces 15.Type: GrantFiled: June 8, 2004Date of Patent: October 31, 2006Assignee: Daifuku Co., Ltd.Inventors: Shigeyoshi Nishihara, Hiroyuki Murakami, Kazuhiko Miyoshi, Susumu Morita, Toshiyuki Iba, Junji Obata
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Publication number: 20040261648Abstract: The present invention relates to a friction drive conveyor including carriers 1, which can be propelled along a track by frictional wheels 30 fitted along the track. Each frictional wheel 30 can be driven by a brakeless motor 29. A sensor 32 senses whether each frictional wheel 30 is in contact with any one frictional surface 15 of the carriers 1. The track includes a section along which the frictional wheels 30 are supported at regular intervals equal to or slightly shorter than the total length L of the frictional surfaces 15 on each side of each carrier 1. On the basis of a signal output from each sensor 32, a controller 24 so controls the associated brakeless motor 29 as to start rotating the associated frictional wheel 30 in contact with any one frictional surface 15 when the forward next wheel 30 gets free of the frictional surfaces 15, and as to stop driving the frictional wheel 30 having got free of the frictional surfaces 15.Type: ApplicationFiled: June 8, 2004Publication date: December 30, 2004Inventors: Shigeyoshi Nishihara, Hiroyuki Murakami, Kazuhiko Miyoshi, Susumu Morita, Toshiyuki Iba, Junji Obata