The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2024
Filed:
Dec. 24, 2020
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Hiroshi Nakamura, Tokyo, JP;
Takuto Yoshioka, Tokyo, JP;
Abstract
A circuit abnormality diagnosis device includes a calculation unit, an inspection power supply, a rectifier element, overcurrent preventing resistors and a voltage amplification unit, a voltage reading unit, and a light emitting unit. It performs a circuit abnormality diagnosis at a preset time (including the time of initial mounting) or every predetermined time. The device determines that a case where a voltage value is within a range of a first voltage value Vor more and a second voltage value Vor less, which is set in advance as a range of voltage values indicating that a circuit is normal, is a normal state, a case where the voltage value is less than the voltage value Vis a short-circuit state in which the circuit is short-circuited, and a case where the voltage value is higher than the voltage value Vis a disconnection state which the circuit is disconnected.