ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,097, issued on June 16, was assigned to EBARA Corp. (Tokyo).
"Output signal processing device for eddy-current sensor" was invented by Katsuya Minatozaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A retainer holds reference data for identifying a first AC generated signal corresponding to an output signal output in a reference state from a detection coil. When a film thickness of a conductor is to be measured, an AC signal generator generates the first AC generated signal based on the reference data and outputs it as a reference signal. When a film thickness of a conductor is to be measured, a difference circuitry receives input of an out...