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:
Dec. 30, 2025
Filed:
Aug. 22, 2023
Applicant:
Korea Electrotechnology Research Institute, Changwon-si, KR;
Inventors:
Jeong Min Woo, Changwon-si, KR;
Sung Man Kang, Changwon-si, KR;
Jae Bok Lee, Changwon-si, KR;
Mun No Ju, Changwon-si, KR;
Assignee:
KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE, Changwon-si, KR;
Primary Examiner:
Int. Cl.
CPC ...
G01R 29/12 (2006.01);
U.S. Cl.
CPC ...
G01R 29/12 (2013.01);
Abstract
Disclosed herein is a contactless DC electric-field sensor having improved sensitivity. The contactless DC electric-field sensor has a circuit composed of a variable capacitor and an RF generator and improves sensitivity through resonance of the circuit by connecting an inductor to the sensor.