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.

Date of Patent:
Jul. 14, 2026

Filed:

Nov. 08, 2024
Applicant:

Sharp Kabushiki Kaisha, Sakai City, JP;

Inventor:

Shuichi Akedo, Sakai City, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai City, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 21/02 (2006.01); G03G 21/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0898 (2013.01); G03G 15/0891 (2013.01); G03G 21/02 (2013.01); G03G 21/206 (2013.01); G03G 15/0889 (2013.01); G03G 2215/0822 (2013.01); G03G 2215/0838 (2013.01); G03G 2221/1645 (2013.01);
Abstract

A development device includes a development tank that stores a developer, a first screw and a second screw that convey the developer, an exhaust port through which air inside the development tank is exhausted, and a filter provided at the exhaust port. The development tank includes a first holder provided with a first screw, a second holder provided with a second screw, a partition wall that partitions the first holder and the second holder, and a first flow port and a second flow port that open the partition wall and through which the developer flows between the first holder and the second holder. A shield partitions the first holder and the exhaust port, and the second holder is connected to the exhaust port.


Find Patent Forward Citations

Akedo, Shuichi. (2026). Development device and image forming device that prevents toner leakage (U.S. Patent No. 12681409). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12681409

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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