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:
Oct. 31, 2017
Filed:
Aug. 30, 2013
Applicants:
Hideki Sugiura, Shizuoka, JP;
Shinya Nakayama, Shizuoka, JP;
Toyoshi Sawada, Kanagawa, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 9/08 (2006.01); G03G 9/093 (2006.01); G03G 9/107 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0821 (2013.01); G03G 9/0804 (2013.01); G03G 9/0819 (2013.01); G03G 9/0825 (2013.01); G03G 9/0827 (2013.01); G03G 9/08755 (2013.01); G03G 9/08797 (2013.01); G03G 9/093 (2013.01); G03G 9/09371 (2013.01); G03G 9/107 (2013.01); G03G 2215/0607 (2013.01);
Abstract
A toner of the present invention includes at least a colorant and a resin, has crystallinity CX or 20 or greater, and has a dynamic viscoelasticity characteristic in which a logarithmic value Log G'(50) of storage elastic modulus (Pa) at 50° C. is from 6.5 to 8.0 and a logarithmic value Log G′(65) of storage elastic modulus (Pa) at 65° C. is from 4.5 to 6.0, when the dynamic viscoelasticity characteristic is measured by temperature sweep from 40° C., at a frequency of 1 Hz, at a strain amount control of 0.1%, and at a temperature elevating rate of 2° C./min.