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:
Jun. 30, 2015
Filed:
Apr. 15, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Yoshihiro Shigemura, Yokohama, JP;
Shingo Horita, Yokosuka, JP;
Masaaki Naoi, Yokosuka, JP;
Megumi Uchino, Tokyo, JP;
Mineto Yagyu, Hachioji, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a detection device, in a case where toner on a developing material carrier is caused to adhere to an electrode, a controller connects an assembly havin a quartz oscillator to a first capacitor using a first switch and connects the assembly to a second capacitor using a second switch; and in a case where a detection unit detects the oscillation frequency of the quartz oscillator, the controller disconnects the assembly from the first capacitor using the first switch and disconnects the assembly from the second capacitor using the second switch.