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:
Jan. 20, 2015
Filed:
Oct. 07, 2011
Applicant:
Hideki Sugiura, Shizuoka, JP;
Inventor:
Hideki Sugiura, Shizuoka, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/093 (2006.01); G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 13/20 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0821 (2013.01); G03G 9/0819 (2013.01); G03G 9/0827 (2013.01); G03G 9/08755 (2013.01); G03G 9/08795 (2013.01); G03G 9/08797 (2013.01); G03G 9/09321 (2013.01); G03G 9/09328 (2013.01); G03G 9/09371 (2013.01); G03G 9/09392 (2013.01); G03G 13/20 (2013.01);
Abstract
To provide a toner, which contains: base particles each having a core-shell structure, where a core of the base particle contains crystalline polyester, non-crystalline polyester, a colorant, and a releasing agent, and a shell of the base particle contain a resin, wherein the toner has thermal hardness of 0.5 to 1.8, wherein the toner has a softening index of 80° C. to 95° C., and wherein the toner has thermal retentiveness of 30° C. to 50° C.