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:
Sep. 11, 2018
Filed:
Apr. 11, 2017
Applicants:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Inventors:
Sunao Takenaka, Yokohama Kanagawa, JP;
Masahiro Ikuta, Mishima Shizuoka, JP;
Assignees:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/00 (2006.01); G03G 9/09 (2006.01); G03G 9/113 (2006.01); G03G 9/107 (2006.01); G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/093 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0926 (2013.01); G03G 9/0808 (2013.01); G03G 9/0819 (2013.01); G03G 9/0823 (2013.01); G03G 9/08755 (2013.01); G03G 9/0928 (2013.01); G03G 9/09328 (2013.01); G03G 9/09378 (2013.01); G03G 9/09392 (2013.01); G03G 9/1075 (2013.01); G03G 9/113 (2013.01); G03G 9/1131 (2013.01); G03G 9/1136 (2013.01); G03G 9/1139 (2013.01); G03G 15/08 (2013.01); G03G 2215/0602 (2013.01);
Abstract
A developer according to an embodiment includes a toner having a color erasable by heating and a carrier. The carrier includes a core portion and a coating portion covering at least 50% of the core portion. The coating portion includes a white-colored additive agent which suppresses an increase in electrification due to friction between the toner and the carrier, a mass of the additive agent being between 20% and 60% of a total mass of the coating portion.