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. 13, 2026
Filed:
Apr. 03, 2025
Kyocera Document Solutions Inc., Osaka, JP;
Tomohiro Tamaki, Osaka, JP;
Katen Ko, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A development device includes a developer container having a first conveyance chamber and a second conveyance chamber above it, a first stirring-conveyance member, a second stirring-conveyance member, a developer carrying member, and a regulation blade. The developer carrying member includes a magnetic member having a regulation pole, a main pole, a release pole, and an attracting pole. A release start position at which the magnetic flux density of the release pole becomes 5 [mT] or less is below a straight line Lhorizontally passing through the center of a rotation shaft of the second stirring-conveyance member and when the central angle of a developer releasing region where the magnetic flux density between the release pole and the attracting pole is 5 [mT] or less is represented by X [°] and the peak magnetic flux density of the attracting pole is represented by Y [mT], Y≤2.1X−32.7 is satisfied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile