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:
Jan. 31, 2023
Filed:
Aug. 24, 2021
Fujifilm Business Innovation Corp., Tokyo, JP;
Masanori Kato, Kanagawa, JP;
Katsumi Yamada, Kanagawa, JP;
Shota Igawa, Kanagawa, JP;
Yoshihisa Nakao, Kanagawa, JP;
Atsushi Funada, Kanagawa, JP;
Mitsutoshi Hongo, Kanagawa, JP;
Makoto Kanno, Kanagawa, JP;
Daisuke Uchimitsu, Kanagawa, JP;
Yoshitaka Nakajima, Kanagawa, JP;
Sadayuki Tsujino, Kanagawa, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
A developing device includes a first transport member and a second transport member that are respectively disposed in a first transport path and a second transport path arranged in a vertical direction and that transport developer so as to circulate the developer between the first transport path and the second transport path; a developing member that is disposed to face the first transport path and that receives the developer from the first transport path; and a driving device that operates such that a relative speed ratio between a rotational speed of the developing member and a rotational speed of the second transport member is changeable.