Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-04-04
2006-04-04
Dote, Janis L. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S111400, C430S124300, C399S269000
Reexamination Certificate
active
07022448
ABSTRACT:
An electrophotographic toner containing: a fixing resin, a colorant, and wax. The wax at least contains hydrocarbon wax having a number-average molecular weight of not higher than 600, and polyethylene wax having a number-average molecular weight of not higher than 600, a melting viscosity of lower than 15 mPa·s at 140° C. and a crystallinity of lower than 95%. A ratio of the hydrocarbon wax to the polyethylene wax is in a range of from 1:10 to 2:1. A maximum of absorption peaks in a heat-up time absorption calorie curve in a DSC curve of the toner measured by a differential scanning calorimeter is at a temperature not higher than 75° C. An onset temperature in absorption of heat is not higher than 65° C.
REFERENCES:
patent: 5298354 (1994-03-01), Matsunaga et al.
patent: 5923933 (1999-07-01), Anzai et al.
patent: 2002/0022189 (2002-02-01), Kawanishi et al.
patent: 52-3304 (1977-01-01), None
patent: 52-3305 (1977-01-01), None
patent: 57-52574 (1982-03-01), None
patent: 5-313413 (1993-11-01), None
patent: 6-123994 (1994-05-01), None
patent: 6-324513 (1994-11-01), None
patent: 7-36218 (1995-02-01), None
patent: 7-209909 (1995-08-01), None
patent: 7-287413 (1995-10-01), None
patent: 7-287418 (1995-10-01), None
patent: 8-114942 (1996-05-01), None
patent: 8-314181 (1996-11-01), None
patent: 9-179335 (1997-07-01), None
patent: 9-319139 (1997-12-01), None
patent: 10-104875 (1998-04-01), None
patent: 2002-268269 (2002-09-01), None
Japanese Patent Office machine-assisted English-lnaguage translation of JP 2002-268269 (Pub. Sep. 2002).
Hoshi Nobuyoshi
Kaneko Tadahiro
Kawanishi Tsuneaki
Kobayashi Junji
Shimizu Ryuuichi
Dote Janis L.
McGinn IP Law Group PLLC
Ricoh Printing Systems Ltd.
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