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. 29, 2007
Filed:
May. 21, 2004
Kazuyuki Matsui, Fuji, JP;
Noboru Kuroda, Tagata-gun, JP;
Kifuku Takagi, Suntoh-gun, JP;
Masato Kobayashi, Suntoh-gun, JP;
Kazuyuki Matsui, Fuji, JP;
Noboru Kuroda, Tagata-gun, JP;
Kifuku Takagi, Suntoh-gun, JP;
Masato Kobayashi, Suntoh-gun, JP;
Ricoh Company Limited, Tokyo, JP;
Abstract
A method for producing a toner including dissolving or dispersing a toner constituent mixture including a binder resin and a colorant in an organic solvent to prepare a toner constituent mixture liquid; dispersing the toner constituent mixture liquid in an aqueous medium including a particulate dispersant to prepare an emulsion; and removing the organic solvent from the emulsion while applying a shearing force to the emulsion. A toner manufactured by the method and having a spindle form while satisfying specific particle diameter relationships. An image forming apparatus using the toner. A toner packing method and device in which the toner is fluidized and pressurized to be fed from a fluidizing container to a toner container on which a gas-powder separation sieve is set to discharge air therefrom.