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. 19, 2021
Filed:
Jan. 29, 2020
Applicants:
Tatsuya Ohhira, Kanagawa, JP;
Koichi Yamazaki, Kanagawa, JP;
Hideo Yoshizawa, Kanagawa, JP;
Takahiro Adachi, Kanagawa, JP;
Inventors:
Tatsuya Ohhira, Kanagawa, JP;
Koichi Yamazaki, Kanagawa, JP;
Hideo Yoshizawa, Kanagawa, JP;
Takahiro Adachi, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); B01F 7/00 (2006.01); B01F 7/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0891 (2013.01); B01F 7/088 (2013.01); G03G 15/0893 (2013.01); G03G 2215/083 (2013.01); G03G 2215/0838 (2013.01);
Abstract
A developer conveyor includes a shaft; a first blade helically wound around the shaft in a first direction, a second blade disposed away from an end of the first blade with a gap in a longitudinal axial direction of the developer conveyor and helically wound around the shaft in a second direction opposite the first direction, and a third blade helically wound around the shaft in the first direction at least at a position where the gap is formed.