Toner

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C430S106100, C430S108100, C430S137180

Reexamination Certificate

active

10901176

ABSTRACT:
In a toner comprising toner particles which comprise toner base particles containing at least a binder resin and a magnetic material, and inorganic fine particles, the toner base particles have been obtained through a pulverization step; and, the toner base particles having a circle-equivalent diameter of from 3 μm or more to 400 μm or less as measured with a flow type particle image analyzer have an average circularity of from 0.935 or more to less than 0.970; and the toner base particles have an average surface roughness of from 5.0 nm or more to less than 35.0 nm as measured with a scanning probe microscope. The toner can enjoy less toner consumption per sheet of images, can achieve a long lifetime in a smaller quantity of toner, and has superior developing performance in any environment.

REFERENCES:
patent: 4917982 (1990-04-01), Tomono et al.
patent: 4921771 (1990-05-01), Tomono et al.
patent: 4988598 (1991-01-01), Tomono et al.
patent: 4997739 (1991-03-01), Tomono et al.
patent: 5004666 (1991-04-01), Tomono et al.
patent: 5023158 (1991-06-01), Tomono et al.
patent: 5219696 (1993-06-01), Demizu et al.
patent: 5225303 (1993-07-01), Tomita et al.
patent: 5240803 (1993-08-01), Ota
patent: 5563693 (1996-10-01), Takahata et al.
patent: 5629118 (1997-05-01), Tomono et al.
patent: 5629123 (1997-05-01), Tomono et al.
patent: 5700616 (1997-12-01), Kasuya et al.
patent: 5729811 (1998-03-01), Takahata et al.
patent: 5912101 (1999-06-01), Karaki et al.
patent: 6007957 (1999-12-01), Kobori et al.
patent: 6022661 (2000-02-01), Kurose et al.
patent: 6033817 (2000-03-01), Yusa et al.
patent: 6589701 (2003-07-01), Yamazaki et al.
patent: 6630275 (2003-10-01), Hiratsuka et al.
patent: 2003/0036008 (2003-02-01), Yamazaki et al.
patent: 2003/0039908 (2003-02-01), Hiratsuka et al.
patent: 2005/0191575 (2005-09-01), Sugiura et al.
patent: 3809662 (1988-10-01), None
patent: 0488789 (1992-06-01), None
patent: 52-3305 (1977-01-01), None
patent: 58-215659 (1983-12-01), None
patent: 62-100775 (1987-05-01), None
patent: 02-87157 (1990-03-01), None
patent: 03-84558 (1991-04-01), None
patent: 03-229268 (1991-10-01), None
patent: 04-1766 (1992-01-01), None
patent: 04-102862 (1992-04-01), None
patent: 04-124676 (1992-04-01), None
patent: 04-204751 (1992-07-01), None
patent: 04-299357 (1992-10-01), None
patent: 04-362953 (1992-12-01), None
patent: 05-197162 (1993-08-01), None
patent: 5-346682 (1993-12-01), None
patent: 06-313980 (1994-11-01), None
patent: 06-332235 (1994-12-01), None
patent: 07-92724 (1995-04-01), None
patent: 07-104501 (1995-04-01), None
patent: 08-36316 (1996-02-01), None
patent: 10-97095 (1998-04-01), None
patent: 11-149176 (1999-06-01), None
patent: 11-202557 (1999-07-01), None
patent: 2000-56595 (2000-02-01), None
patent: 2002-23414 (2002-01-01), None
Patent Abstracts of Japan, vol. 2002, No. 6, Jun. 2002 for JP2002-040711.
Patent Abstracts of Japan, vol. 0031, No. 41 (E-153), Nov. 1979 for JP 54-119245.
Patent Abstracts of Japan, vol. 1997, No. 02, Feb. 1997 for JP 08-272136.
Database WPI, Section PQ, Week 200282, Derwent Publn. AN 2002-754865; XP002308038 (2002).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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 Toner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3766102

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.