Patents by Inventor Nobuhiro KANATANI

Nobuhiro KANATANI 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).

  • Publication number: 20220308096
    Abstract: A state detection apparatus includes a communication circuit that transmits information to an external apparatus, a control circuit that operates the communication circuit at a first timing, a battery that supplies electric power to the communication and control circuits, and a first explosion-proof barrier connected between a contact circuit and the control circuit. The control circuit applies a test signal, generated based on voltage from the battery, to the contact circuit at a second timing arriving at shorter intervals than the first timing, acquires a detection signal indicating current flow in the contact circuit due to test signal application, and regardless of the first timing, operates the communication circuit when the detection signal is acquired to transmit to the external apparatus that the state of a device connected to the contact circuit is abnormal.
    Type: Application
    Filed: March 10, 2022
    Publication date: September 29, 2022
    Inventors: Nobuhiro Kanatani, Takayuki Suzuki
  • Patent number: 11343932
    Abstract: Provided are an electrical device and a component for an electrical device that can efficiently suppress the occurrence of a short circuit between a housing and a circuit board. The electrical device includes a housing and a circuit board housed inside the housing. The housing includes a metallic main housing to be attached to an installation section and a sub-housing attached to the main housing. The main housing includes a main wall, extending along the circuit board with a gap between the main wall and the circuit board, and a board attachment portion having the circuit board attached thereto. An insulating plate having insulating properties is fixed to an inner surface of the main wall.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: May 24, 2022
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Nobuhiro Kanatani, Takuya Nidaira
  • Publication number: 20200389992
    Abstract: Provided are an electrical device and a component for an electrical device that can efficiently suppress the occurrence of a short circuit between a housing and a circuit board. The electrical device includes a housing and a circuit board housed inside the housing. The housing includes a metallic main housing to be attached to an installation section and a sub-housing attached to the main housing. The main housing includes a main wall, extending along the circuit board with a gap between the main wall and the circuit board, and a board attachment portion having the circuit board attached thereto. An insulating plate having insulating properties is fixed to an inner surface of the main wall.
    Type: Application
    Filed: June 1, 2020
    Publication date: December 10, 2020
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Nobuhiro KANATANI, Takuya NIDAIRA
  • Patent number: 10177565
    Abstract: The purpose of the present invention is to enable use of a solenoid-type electromagnetic valve (120) in a valve driving device (10) that performs wireless communication. A contact signal converter (110) that converts an on-off contact signal to a control signal for operating a solenoid-type electromagnetic valve (120) comprises an explosion protection barrier (115) which restricts the current of the control signal to be no more than a maximum current established for safety regarding solenoid-type electromagnetic valves (120), and a group of batteries (111), the number of which can ensure a voltage at which the voltage supplied via the explosion protection barrier (115) surpasses the operating voltage of the solenoid-type electromagnetic valve (120).
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: January 8, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Hitoshi Saito, Nobuhiro Kanatani
  • Publication number: 20160336742
    Abstract: The purpose of the present invention is to enable use of a solenoid-type electromagnetic valve (120) in a valve driving device (10) that performs wireless communication. A contact signal converter (110) that converts an on-off contact signal to a control signal for operating a solenoid-type electromagnetic valve (120) comprises an explosion protection barrier (115) which restricts the current of the control signal to be no more than a maximum current established for safety regarding solenoid-type electromagnetic valves (120), and a group of batteries (111), the number of which can ensure a voltage at which the voltage supplied via the explosion protection barrier (115) surpasses the operating voltage of the solenoid-type electromagnetic valve (120).
    Type: Application
    Filed: December 4, 2014
    Publication date: November 17, 2016
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Hitoshi SAITO, Nobuhiro KANATANI