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. 03, 2009
Filed:
Sep. 30, 2004
Nobuyasu Makino, Shizuoka, JP;
Fumitoshi Murakami, Shizuoka, JP;
Colin Weaver, Shropshire, GB;
David Roberts, Shropshire, GB;
Tsutomu Kagawa, Shropshire, GB;
Nobuyasu Makino, Shizuoka, JP;
Fumitoshi Murakami, Shizuoka, JP;
Colin Weaver, Shropshire, GB;
David Roberts, Shropshire, GB;
Tsutomu Kagawa, Shropshire, GB;
Ricoh Company, Ltd., Tokyo, JP;
Ricoh UK Products Ltd., Shropshire, GB;
Abstract
A toner manufacturing process, includes: melting a kneaded composition, to thereby obtain a melted composition; and spraying the melted composition with a high pressure gas, to thereby form a fine particle. The kneaded composition is selected from the group consisting of the following <1>, <2> and <3>: <1> a first kneaded composition including a binder resin, a colorant, and a charge controlling agent, <2> a second kneaded composition including a binder resin, a colorant, a charge controlling agent, and a releasing agent, and <3> a third kneaded composition including a binder resin, a magnetic agent, a charge controlling agent, and a releasing agent.