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:
Dec. 07, 2021
Filed:
Dec. 16, 2019
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Masaya Ota, Mie, JP;
Tomoko Nakagawa, Niigata, JP;
Yuki Narukawa, Niigata, JP;
Masaaki Okamoto, Niigata, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 9/08 (2006.01); G03G 9/093 (2006.01); G03G 9/09 (2006.01);
U.S. Cl.
CPC ...
G03G 9/08797 (2013.01); G03G 9/0804 (2013.01); G03G 9/0806 (2013.01); G03G 9/0819 (2013.01); G03G 9/0821 (2013.01); G03G 9/0827 (2013.01); G03G 9/08795 (2013.01); G03G 9/09321 (2013.01); G03G 9/09328 (2013.01); G03G 9/0904 (2013.01); G03G 2215/2045 (2013.01);
Abstract
The present invention relates to an electrostatic charge image developing toner having a ratio of TP2/TP1 of 1.47 to 2.35, wherein a first measurement value of a tan δ maximal value measured in 40° C. to 80° C. by a rheometer is set as the TP1, and a second measurement value of a tan δ maximal value measured in 40° C. to 80° C. by the rheometer is set as the TP2.