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:
Oct. 01, 2019
Filed:
Jun. 04, 2018
Taku Kumiya, Kanagawa, JP;
Masahide Yamashita, Tokyo, JP;
Yohei Kushida, Hyogo, JP;
Takuya Murata, Tokyo, JP;
Keita Maejima, Kanagawa, JP;
Taku Kumiya, Kanagawa, JP;
Masahide Yamashita, Tokyo, JP;
Yohei Kushida, Hyogo, JP;
Takuya Murata, Tokyo, JP;
Keita Maejima, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A powder-amount detection device includes an outer electrode, an inner electrode, and a detector. The outer electrode is disposed outside a powder container to be replaceably installed to an image forming apparatus. The inner electrode is disposed inside a powder supply port of the powder container. The detector is configured to apply an electric field between the outer electrode and the inner electrode to detect a capacitance between the outer electrode and the inner electrode.