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.

Date of Patent:
Dec. 22, 2015

Filed:

Jan. 10, 2014
Applicant:

Toshiba Tec Kabushiki Kaisha, Tokyo, JP;

Inventors:

Tsuyoshi Itou, Shizuoka-ken, JP;

Kazuhisa Takeda, Shizuoka-ken, JP;

Yasuhito Noda, Shizuoka-ken, JP;

Takayasu Aoki, Shizuoka-ken, JP;

Masahiro Ikuta, Shizuoka-ken, JP;

Takafumi Hara, Shizuoka-ken, JP;

Motonari Udo, Shizuoka-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/00 (2006.01); G03G 9/08 (2006.01); G03G 9/09 (2006.01); G03G 9/097 (2006.01);
U.S. Cl.
CPC ...
G03G 9/081 (2013.01); G03G 9/0815 (2013.01); G03G 9/0926 (2013.01); G03G 9/09708 (2013.01); G03G 9/09716 (2013.01); G03G 9/09725 (2013.01);
Abstract

According to one embodiment, a method of manufacturing an erasable toner includes washing toner particles including therein a coloring material that is erasable by heating and a binder resin to obtain a toner cake having the amount of water of 20% by weight to 60% by weight, and drying the toner cake at 40° C. or more and at a temperature which is lower than the complete color erasing temperature of the toner particles by 30° C. or more.


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