Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2008-01-22
2008-01-22
RoDee, Christopher (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108800, C430S109300, C430S109400, C430S111400
Reexamination Certificate
active
07320850
ABSTRACT:
A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter, a reflectance at a predetermined wavelength when measured in a powder state by spectroscopic analysis, and lightness when measured in a powder form are in specific ranges. A full-color image is formed using the magenta toner as a pale magenta toner in combination with a deep magenta toner. According to the present invention, it becomes possible to form a vivid image which has reduced graininess and roughness from a low-density region to a high-density region, ensures a sufficient fixing temperature region, has a color reproduction range wider that the conventional one, and has high transparency on an OHP sheet.
REFERENCES:
patent: 5437949 (1995-08-01), Kanbayashi et al.
patent: 5814429 (1998-09-01), Kawakami et al.
patent: 5842080 (1998-11-01), Ashibe et al.
patent: 6013403 (2000-01-01), Ichikawa
patent: 6033817 (2000-03-01), Yusa et al.
patent: 6327450 (2001-12-01), Ito
patent: 6498910 (2002-12-01), Haneda
patent: 6586147 (2003-07-01), Iida et al.
patent: 6670087 (2003-12-01), Fujikawa et al.
patent: 6673506 (2004-01-01), Nakanishi et al.
patent: 6996358 (2006-02-01), Ayaki et al.
patent: 2002/0037466 (2002-03-01), Kanbayashi et al.
patent: 2003/0207186 (2003-11-01), Itakura et al.
patent: 2004/0009420 (2004-01-01), Sugahara et al.
patent: 2004/0013958 (2004-01-01), Ayaki et al.
patent: 2004/0175642 (2004-09-01), Ida et al.
patent: 2004/0209178 (2004-10-01), Itakura et al.
patent: 0827039 (1998-03-01), None
patent: 1376255 (2004-01-01), None
patent: 11-84764 (1999-03-01), None
patent: 2000-231279 (2000-08-01), None
patent: 2000-305339 (2000-11-01), None
patent: 2000-347476 (2000-12-01), None
patent: 2001-290319 (2001-10-01), None
Chemical Abstracts Registry entries for Pigment Red 57:1 and Pigment Red 122 (2006).
Fujikawa Hiroyuki
Itakura Takayuki
Sato Yuko
Sugahara Nobuyoshi
Tanikawa Hirohide
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Rodee Christopher
LandOfFree
Magenta toner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magenta toner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magenta toner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2805242