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:
Aug. 30, 2016
Filed:
Nov. 14, 2011
Rintaro Nagaoka, Tokyo, JP;
Zhengyong Liu, Tokyo, JP;
Rintaro Nagaoka, Tokyo, JP;
Zhengyong Liu, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Values of a current and a voltage from a heating power supply device that supplies a current to a wire electrode and that heats the wire electrode are measured, a load resistance value is calculated by dividing the voltage value by the current value, a resistance increment of the wire electrode is calculated from an increased amount in the load resistance value with reference to the load resistance value and an estimated resistance value, a temperature rise value of the wire electrode is estimated based on a specific resistance of the wire electrode and a temperature coefficient of the specific resistance, and a state of carrying a current to the wire electrode is controlled based on the temperature rise value.