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:
Feb. 07, 2017
Filed:
Jan. 20, 2014
Tsuyoshi Sugimoto, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Daisuke Asahina, Shizuoka, JP;
Susumu Chiba, Shizuoka, JP;
Satoyuki Sekiguchi, Shizuoka, JP;
Tsuyoshi Sugimoto, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Daisuke Asahina, Shizuoka, JP;
Susumu Chiba, Shizuoka, JP;
Satoyuki Sekiguchi, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner, including: a copolymerization resin, wherein the copolymerization resin includes: a unit derived from a polyester resin including a polycarboxylic acid having a valence of 2 or more and a polyol having a valence of 2 or more; and a unit derived from a resin having a polyhydroxycarboxylic acid skeleton, where the unit derived from the resin having a polyhydroxycarboxylic acid skeleton is bonded to the unit derived from the polyester resin via at least one of a urethane group and a urea group, and wherein the toner has a relative degree of crystallization of 10% or more and less than 50%.