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:
Mar. 25, 2014
Filed:
Mar. 29, 2012
Minoru Masuda, Shizuoka, JP;
Yasutada Shitara, Shizuoka, JP;
Yoshihiro Norikane, Kanagawa, JP;
Kiyotada Katoh, Shizuoka, JP;
Satoshi Takahashi, Shizuoka, JP;
Minoru Masuda, Shizuoka, JP;
Yasutada Shitara, Shizuoka, JP;
Yoshihiro Norikane, Kanagawa, JP;
Kiyotada Katoh, Shizuoka, JP;
Satoshi Takahashi, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A method of manufacturing toner is provided. The method includes preparing a toner constituents liquid by dissolving or dispersing toner constituents in an organic solvent. The toner constituents includes a binder resin and a charge controlling agent. The charge controlling agent includes a polycondensation product of a phenol with an aldehyde. The method further includes forming a liquid column resonance standing wave in the toner constituents liquid in a chamber having at least one nozzle by vibrating the toner constituents liquid. The method further includes forming the toner constituents liquid into liquid droplets by discharging the toner constituents liquid from the nozzle. The nozzle is disposed within an area including antinodes of the liquid column resonance standing wave. The method further includes removing the organic solvent from the liquid droplets to solidify the liquid droplets.