Patents by Inventor Masaki Shioya
Masaki Shioya 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: 10104552Abstract: A wireless relay device for relaying encrypted data via a wireless network according to one aspect of the present invention includes a relay controller and an encryption processor. The relay controller is configured to relay a first data to a predetermined relay destination as a second data via the wireless network. The first data is transmitted to the wireless relay device via the wireless network and is addressed to the wireless relay device. The encryption processor is configured to decrypt the first data into a decrypted first data and to input the decrypted first data into the relay controller, and encrypt the second data to be relayed by the relay controller.Type: GrantFiled: March 25, 2016Date of Patent: October 16, 2018Assignee: Yokogawa Electric CorporationInventors: Naoyuki Fujimoto, Masato Yamaji, Kenichi Takeda, Masaki Shioya, Yota Furukawa
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Patent number: 9992743Abstract: A wireless device that performs an operation based on setting information includes a wireless communicator configured to perform wireless communication over a wireless network, a near field communicator comprising a memory storing the setting information and configured to perform transmission and reception of the setting information stored in the memory by near field communication, and a controller configured to control at least the wireless communicator.Type: GrantFiled: April 22, 2016Date of Patent: June 5, 2018Assignee: Yokogawa Electric CorporationInventors: Masato Yamaji, Kenichi Takeda, Masaki Shioya, Naoyuki Fujimoto, Minoru Midorikawa
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Publication number: 20160323825Abstract: A wireless device that performs an operation based on setting information includes a wireless communicator configured to perform wireless communication over a wireless network, a near field communicator comprising a memory storing the setting information and configured to perform transmission and reception of the setting information stored in the memory by near field communication, and a controller configured to control at least the wireless communicator.Type: ApplicationFiled: April 22, 2016Publication date: November 3, 2016Applicant: YOKOGAWA ELECTRIC CORPORATIONInventors: Masato YAMAJI, Kenichi TAKEDA, Masaki SHIOYA, Naoyuki FUJIMOTO, Minoru MIDORIKAWA
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Publication number: 20160295417Abstract: A wireless relay device for relaying encrypted data via a wireless network according to one aspect of the present invention includes a relay controller and an encryption processor. The relay controller is configured to relay a first data to a predetermined relay destination as a second data via the wireless network. The first data is transmitted to the wireless relay device via the wireless network and is addressed to the wireless relay device. The encryption processor is configured to decrypt the first data into a decrypted first data and to input the decrypted first data into the relay controller, and encrypt the second data to be relayed by the relay controller.Type: ApplicationFiled: March 25, 2016Publication date: October 6, 2016Applicant: Yokogawa Electric CorporationInventors: Naoyuki FUJIMOTO, Masato YAMAJI, Kenichi TAKEDA, Masaki SHIOYA, Yota FURUKAWA
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Patent number: 7280877Abstract: A facility control monitor method and a facility control monitor apparatus capable of visually tracing a control logic and easily finding a cause of an operation trouble caused by the control logic. The facility control monitor method monitors control performed by a control device included in a facility having a controllable device, the control device for controlling the controllable device, a setting device for transmitting a setting control value to the control device, and a sensor for transmitting an operation state measurement value of the controllable device to the control device. Processes of control performed by the control device are stored. When an arbitrary date and time is specified by a trace controller (35), predetermined control steps of the specified date and time and after are displayed in a flowchart on a control flow display unit.Type: GrantFiled: April 8, 2004Date of Patent: October 9, 2007Assignee: Kajima CorporationInventors: Masaki Shioya, Noriyasu Sagara, Yuji Tsubota
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Publication number: 20040193294Abstract: A facility control monitor method and a facility control monitor apparatus capable of visually tracing a control logic and easily finding a cause of an operation trouble caused by the control logic. The facility control monitor method monitors control performed by a control device included in a facility having a controllable device, the control device for controlling the controllable device, a setting device for transmitting a setting control value to the control device, and a sensor for transmitting an operation state measurement value of the controllable device to the control device. Processes of control performed by the control device are stored. When an arbitrary date and time is specified by a trace controller (35), predetermined control steps of the specified date and time and after are displayed in a flowchart on a control flow display unit.Type: ApplicationFiled: April 8, 2004Publication date: September 30, 2004Inventors: Masaki Shioya, Noriyasu Sagara, Yuji Tsubota
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Patent number: 6088244Abstract: A switching power supply comprising a main converter that turns ON and OFF a DC current applied to a primary winding of a main transformer by a main switching element and outputs a main output voltage to a secondary circuit by rectifying and smoothing current induced in a secondary winding; an error amplifier generating an error voltage between the main output voltage and a first reference voltage; an over-voltage protection circuit that generates an over-voltage protection signal when the main output voltage exceeds a second reference voltage; a PWM circuit to control a drive signal for the main switching element to minimize error voltage outputted by the error amplifier; and a shut-down execution circuit that stops the main converter operation when the over-voltage protection signal is generated; wherein are provided a device to superimpose the over-voltage protection signal on the error signal of the main output voltage induced in the secondary winding and to transmit the superimposed signal to the primaryType: GrantFiled: November 10, 1999Date of Patent: July 11, 2000Assignee: Yokogawa Electric Corp.Inventors: Masaki Shioya, Hideaki Matsumura, Takumi Oe, Iwao Nakanishi
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Patent number: 6023178Abstract: A pulse width control IC circuit that greatly reduces price, increases packaging density,and improves reliability for switching power supply units, wherein the IC circuit is on a single chip and includes a main converter control section that controls the ON and OFF actions of a main switch outside the IC, an output MOSFET, and an auxiliary converter control section that controls the ON and OFF actions of the output MOSFET.Type: GrantFiled: March 30, 1998Date of Patent: February 8, 2000Assignee: Yokogawa Electric CorporationInventors: Masaki Shioya, Hideaki Matsumura, Takumi Ooe, Iwao Nakanishi, Masuo Hanawaka
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Patent number: 5862044Abstract: A switching power supply apparatus wherein a main converter turns "on" and "off" a DC current applied to a primary winding of a main transformer using a main switching element and outputs a main output voltage to the secondary side after rectifying and smoothing current induced in a secondary winding; an error amplifier generates an error voltage between the main output voltage and a first reference voltage; a PWM control circuit outputs an on-off control signal for the main switching element so that the error voltage is minimized; a photo coupler receives the error voltage and provides an output to the PWM control circuit; an over-voltage protection circuit generates an over-voltage protection signal when the main output voltage exceeds a second reference voltage; an on-off circuit outputs either a high level potential or a common level potential depending on whether the power is to be turned "on" or "off"; a shut down latch circuit outputs a shut down signal when the over-voltage protection signal representType: GrantFiled: November 28, 1997Date of Patent: January 19, 1999Assignee: Yokogawa Electric CorporationInventors: Masaki Shioya, Hideaki Matsumura, Takumi Ooe
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Patent number: 5065301Abstract: A switching power supply for controlling an output voltage to a constant value with respect to fluctuations in input or in load, wherein are provided a DC power supply; two dividing capacitors connected in series to both ends of the DC power supply; two semiconductor switches connected in series to both ends of the DC power supply; a transformer having a primary winding, one end of which is connected to a connecting point of the two dividing capacitors; and a T type circuit comprising two inductors connected in series between the connecting point of the two semiconductor switches and the other end of the primary winding; and a capacitor connected between the connecting point of the two inductors and the other end of the primary winding. The control characteristics of the switching power supply are improved by reducing the dependency of the output voltage on fluctuations in the load.Type: GrantFiled: July 5, 1990Date of Patent: November 12, 1991Assignee: Yokogawa Electric CorporationInventors: Masaki Shioya, Masuo Hanawaka