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:
Jun. 18, 2024
Filed:
Aug. 27, 2021
Fujifilm Business Innovation Corp., Tokyo, JP;
Takeshi Tanabe, Kanagawa, JP;
Shintaro Anno, Kanagawa, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
A method for producing a carrier for electrostatic charge image development includes coating magnetic particles by adding the magnetic particles and a coating liquid containing a resin and a solvent to a mixer with a stirring blade to form a resin coating layer on surfaces of the magnetic particles and taking a carrier having the resin coating layer out of the mixer. In the coating, the stirring conditions after the solvent is evaporated and dried by heating in the mixer until the carrier is taken out of the mixer satisfy Formula 1 below and Formula 2 below:0.2≤peripheral speed πDn (m/s) of stirring blade≤2.0 Formula 1,1×10≤stirring workload (peripheral speed×stirring time T)≤4×10 Formula 2,