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:
Jun. 04, 2013
Filed:
Jun. 23, 2010
Daisuke Inoue, Numazu, JP;
Fumihiro Sasaki, Fuji, JP;
Osamu Uchinokura, Mishima, JP;
Satoshi Kojima, Numazu, JP;
Hideki Sugiura, Numazu, JP;
Naoko Morisawa, Ebina, JP;
Daisuke Inoue, Numazu, JP;
Fumihiro Sasaki, Fuji, JP;
Osamu Uchinokura, Mishima, JP;
Satoshi Kojima, Numazu, JP;
Hideki Sugiura, Numazu, JP;
Naoko Morisawa, Ebina, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
The toner includes a binder resin; a colorant; and a release agent. The first inter-particle force Fp(A) of the toner, which is measured under an environmental condition of 23° C. and 60% RH after the toner is pressed for 1 minute at 25° C. under a compression stress of 15 kg/cm, is from 1.0×10(N) to 1.0×10(N). The difference (Fp(B)−Fp(A)) between the second inter-particle force Fp(B) of the toner, which is measured under the environmental condition of 23° C. and 60% RH after the toner is pressed for 1 minute at 50° C. under a compression stress of 15 kg/cm, and the first inter-particle force Fp(A) is 0 (N) to 1.0×10(N).