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:
Nov. 11, 2025
Filed:
Apr. 19, 2021
Sharp Display Technology Corporation, Kameyama, JP;
Kei Ikuta, Kameyama, JP;
Takeshi Hara, Kameyama, JP;
Tomoko Teranishi, Kameyama, JP;
Tomohiro Kosaka, Kameyama, JP;
Sharp Display Technology Corporation, Kameyama, JP;
Abstract
A detector device includes a pair of filter electrodes, a collector electrode collecting charged particles that pass through a space between the pair of filter electrodes, and a detection circuit connected to the collector electrode and detecting an amount of the charged particles that are collected. The collector electrode includes an upper electrode layer having a collection surface that receives the charged particles, a lower electrode layer that is disposed opposite a surface of the upper electrode layer that is an opposite surface from the collection surface, and an insulation layer having an insulation property and disposed between the upper electrode layer and the lower electrode layer. The detection circuit is configured to be connected to one of the upper electrode layer and the lower electrode layer.