Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2011-08-30
2011-08-30
Le, Hoa V (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108300, C430S108400, C430S109400
Reexamination Certificate
active
08007974
ABSTRACT:
A toner that is excellent in low-temperature fixing property, offset resistance, storage stability, charge rising property, charge stability with time and pulverizability and allows for forming high-quality images over a long period of time. The toner contains at least a binder resin, a colorant and a charge controlling agent, wherein the charge controlling agent contains an aromatic oxycarboxylic acid metal compound having a trivalent or more central metal, the binder resin comprises a polyester resin (A) having a softening point Tm (A) of 120° C. to 160° C. and a polyester resin (B) having a softening point Tm (B) of 80° C. to less than 120° C., and at least any one of the polyester resins (A) and (B) contains 1,2-propane diol at 65 mol % or more in a divalent alcohol component and can be obtained by condensation polymerizing an alcohol component substantially composed of only an aliphatic alcohol with a carboxylic acid component.
REFERENCES:
patent: 4206064 (1980-06-01), Kiuchi et al.
patent: 4981939 (1991-01-01), Matsumura et al.
patent: 5853940 (1998-12-01), Kido et al.
patent: 6025107 (2000-02-01), Sekiguchi et al.
patent: 6946229 (2005-09-01), Suzuki et al.
patent: 7166403 (2007-01-01), Ichikawa et al.
patent: 7172844 (2007-02-01), Umemura et al.
patent: 7198874 (2007-04-01), Saito et al.
patent: 7261989 (2007-08-01), Sugiura et al.
patent: 7318989 (2008-01-01), Kotsugai et al.
patent: 2002/0001766 (2002-01-01), Higuchi et al.
patent: 2002/0028402 (2002-03-01), Matsuoka et al.
patent: 2002/0042011 (2002-04-01), Anno et al.
patent: 2002/0098434 (2002-07-01), Anno et al.
patent: 2003/0162115 (2003-08-01), Uchinokura et al.
patent: 2003/0180643 (2003-09-01), Suzuki et al.
patent: 2004/0029031 (2004-02-01), Yamazaki et al.
patent: 2004/0082714 (2004-04-01), Miyamoto et al.
patent: 2005/0079433 (2005-04-01), Watanabe et al.
patent: 2005/0089786 (2005-04-01), Sugiura et al.
patent: 2005/0089787 (2005-04-01), Uchinokura et al.
patent: 2005/0277046 (2005-12-01), Sawada et al.
patent: 2006/0068312 (2006-03-01), Yamashita et al.
patent: 2006/0160011 (2006-07-01), Inoue et al.
patent: 2006/0165989 (2006-07-01), Takikawa et al.
patent: 2006/0172215 (2006-08-01), Kotsugai et al.
patent: 2006/0204883 (2006-09-01), Nakayama et al.
patent: 2006/0240349 (2006-10-01), Watanabe et al.
patent: 2007/0031752 (2007-02-01), Watanabe et al.
patent: 2007/0248380 (2007-10-01), Iwamoto et al.
patent: 2007/0281236 (2007-12-01), Watanabe et al.
patent: 2007/0281237 (2007-12-01), Iwamoto et al.
patent: 1168899 (1997-12-01), None
patent: 55-42752 (1980-11-01), None
patent: 62-145255 (1987-06-01), None
patent: 63-313182 (1988-12-01), None
patent: 1-263679 (1989-10-01), None
patent: 1-309072 (1989-12-01), None
patent: 5-341617 (1993-12-01), None
patent: 7-230188 (1995-08-01), None
patent: 8-22206 (1996-01-01), None
patent: 9-325520 (1997-12-01), None
patent: 10-10785 (1998-01-01), None
patent: 2001-249500 (2001-09-01), None
patent: 2001-343787 (2001-12-01), None
patent: 2002-082484 (2002-03-01), None
patent: 2002-169331 (2002-06-01), None
patent: 2002-287427 (2002-10-01), None
patent: 2004-280084 (2004-10-01), None
patent: 2004-309745 (2004-11-01), None
patent: 2006-154686 (2006-06-01), None
U.S. Appl. No. 12/297,952, filed Oct. 21, 2008, Iwamoto, et al.
U.S. Appl. No. 11/755,484, filed May 30, 2007, Watanabe, et al.
U.S. Appl. No. 11/755,517, filed May 30, 2007, Iwamoto, et al.
U.S. Appl. No. 11/738,149, filed Apr. 20, 2007, Iwamato, et al.
U.S. Appl. No. 11/934,929, filed Nov. 21, 2007, Nakayama, et al.
U.S. Appl. No. 12/112,601, filed Apr. 30, 2008, Sabu, et al.
U.S. Appl. No. 12/118,006, filed May 9, 2008, Nakayama, et al.
U.S. Appl. No. 12/253,558, filed Oct. 17, 2008, Nakayama et al.
U.S. Appl. No. 12/142,311, filed Jun. 19, 2008, Nakayama, et al.
Office Action issued Oct. 19, 2010, in Japanese Patent Application No. 2006-315650, filed Nov. 22, 2006.
Office Action issued Nov. 1, 2010, in Chinese Patent Application No. 200710308200.3, filed Nov. 22, 2007, with English translation.
Iwamoto Yasuaki
Kotsugai Akihiro
Nakayama Shinya
Shitara Yasutada
Le Hoa V
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
LandOfFree
Toner, image forming apparatus using the same, image forming... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Toner, image forming apparatus using the same, image forming..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner, image forming apparatus using the same, image forming... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2750782