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:
Mar. 23, 2021
Filed:
Oct. 18, 2018
Yohei Kushida, Hyogo, JP;
Kyohei Matsumura, Kanagawa, JP;
Ryuuichi Satoh, Kanagawa, JP;
Sumihiro Inokuchi, Kanagawa, JP;
Tomohide Kondoh, Kanagawa, JP;
Ryohta Ueba, Kanagawa, JP;
Yohei Kushida, Hyogo, JP;
Kyohei Matsumura, Kanagawa, JP;
Ryuuichi Satoh, Kanagawa, JP;
Sumihiro Inokuchi, Kanagawa, JP;
Tomohide Kondoh, Kanagawa, JP;
Ryohta Ueba, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A characteristic detector includes two electrodes facing each other to form a passage through which a medium passes, a cover disposed between the two electrodes, a current generator to supply a current between the two electrodes, a capacitance gauge to measure a capacitance generated between the two electrodes, and circuitry. The two electrodes have a shape or an arrangement in which at least two points on a leading end of the medium enter the passage with a time lag. The cover covers one of the two electrodes in connection with a size of the medium. The capacitance gauge detects the size of the medium based on the measured capacitance. The circuitry calculates a characteristic of the medium based on the capacitance measured by the capacitance gauge and the size of the medium detected by the capacitance gauge.