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:
May. 11, 2021
Filed:
Aug. 19, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Satoshi Sunahara, Hachioji, JP;
Nobuo Oshima, Inagi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A development frame body includes a concave portion, which is projected in a direction along an upward direction of a gravitational direction, and which is located at a downstream side of a communication port and an upstream side of a replenishing port, the concave portion and the replenishing port overlap with each other in an axis direction of a shaft portion when viewed in a direction orthogonal to the axis direction, a relationship R≤L is satisfied, when a free length of the sheet portion is L and a distance from a rotation center of the shaft portion to an inner wall face is R, and slit portions are formed in a free end of the sheet portion so that a section of the free end of the sheet portion can enter the concave portion when an agitation member is rotated.