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:
Jul. 23, 2013
Filed:
Nov. 28, 2008
Junichi Awamura, Numazu, JP;
Akinori Saitoh, Numazu, JP;
Masahide Yamada, Numazu, JP;
Osamu Uchinokura, Mishima, JP;
Tomomi Suzuki, Numazu, JP;
Junichi Awamura, Numazu, JP;
Akinori Saitoh, Numazu, JP;
Masahide Yamada, Numazu, JP;
Osamu Uchinokura, Mishima, JP;
Tomomi Suzuki, Numazu, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A method of manufacturing a toner including forming a wax liquid dispersion in which a wax is dispersed in an organic solvent (A1), mixing an organic layer including the wax liquid dispersion, a binder resin and an organic solvent (A) to form an oil phase and dispersing and emulsifying the oil phase in an aqueous medium to obtain an emulsified liquid dispersion, wherein the aspect ratio average of the wax in the wax liquid dispersion is from 0.3 to 0.7 and the toner includes toner particles satisfying the following relationship (1) in an amount of 20% by number or smaller based on all toner particles: 0.5<D2/D1, relationship (1), where D1 represents the major diameter (D1) of the toner and D2 represents the major diameter of the wax.