Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Reexamination Certificate
2005-12-28
2008-12-09
Ha, Nguyen T (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
C361S321200, C361S321400, C361S311000, C361S313000, C361S306100
Reexamination Certificate
active
07463477
ABSTRACT:
A mixed dispersant which can improve the efficiency of dispersing metal powder by effectively adsorbing on the surface of the metal powder and preventing aggregation thereof, and a paste composition and a dispersion method using the same are provided. A multilayer ceramic capacitor (MLCC) is also provided. The mixed dispersant includes a basic dispersant and an acidic dispersant in accordance with the acidity and basicity of nickel metal powder and thus can achieve an optimal dispersion efficiency. An improvement in the dispersion efficiency as such can consequently suppress aggregation of the nickel metal powder during the preparation of a conductive paste composition containing a nickel metal powder, and therefore a larger amount of the nickel metal powder can be used in the paste composition. The increased amount of nickel metal powder allows producing an internal nickel electrode having improved electric properties and mechanical properties during the production of MLCCs.
REFERENCES:
patent: 4486813 (1984-12-01), Maher
patent: 4539041 (1985-09-01), Figlarz et al.
patent: 5097391 (1992-03-01), Nomura et al.
patent: 5698131 (1997-12-01), Saitou et al.
patent: 5707761 (1998-01-01), Hayashi et al.
patent: 6120576 (2000-09-01), Toshima et al.
patent: 6238822 (2001-05-01), Imoto et al.
patent: 6577494 (2003-06-01), Watanabe et al.
patent: 7054137 (2006-05-01), Barber et al.
Baek Jong-gab
Choi Jae-young
Kim Seul-ki
Lee Eun-sung
Lee Seo-ho
Buchanan & Ingersoll & Rooney PC
Ha Nguyen T
Samsung Electro-Mechanics Co. Ltd.
LandOfFree
Mixed dispersant, paste composition and dispersion method... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mixed dispersant, paste composition and dispersion method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixed dispersant, paste composition and dispersion method... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4026051