Electric heating – Heating devices – With heating unit structure
Reexamination Certificate
2008-03-25
2011-11-15
Fuqua, Shawntina (Department: 3742)
Electric heating
Heating devices
With heating unit structure
C219S522000, C219S547000, C219S203000, C219S209000, C209S720000, C204S431000, C428S472000, C428S697000, C428S698000, C428S699000, C428S418000, C428S458000, C428S469000
Reexamination Certificate
active
08058592
ABSTRACT:
A gas sensor is equipped with a built-in ceramic heater. The gas sensor detects the concentration of a predetermined gas component contained in the exhaust gas. The ceramic heater has a heater base member made of ceramic, a heating element formed in the inside of the heater base material, and a pair of external electrode pads that is electrically connected to the output terminals for the outer leads. The external electrode pads, the heating element, and the heater leads are made of base metal. The outer surface of each external electrode pad is covered only with a dense protective film made of noble metal such as gold (Au), silver (Ag), platinum (Pt), rhodium (Rh), and palladium (Pd).
REFERENCES:
patent: 5493102 (1996-02-01), Takase et al.
patent: 5750267 (1998-05-01), Takase et al.
patent: 1 696 704 (2006-08-01), None
patent: 05-101972 (1993-04-01), None
patent: 06-283261 (1994-10-01), None
patent: 06-290856 (1994-10-01), None
patent: 07-114979 (1995-05-01), None
patent: 10-206373 (1998-08-01), None
patent: 2000-048939 (2000-02-01), None
patent: 2005-158471 (2005-06-01), None
patent: 2006-91009 (2006-04-01), None
patent: 2006-091009 (2006-04-01), None
patent: 2006-208140 (2006-08-01), None
Japanese Office Action dated May 26, 2009, issued in corresponding Japanese Application No. 2008-015160 with English Translation.
Japanese Office Action dated Nov. 25, 2008 issued in corresponding Japanese Application No. 2008-015160 with English Translation.
Japanese Office Action dated Feb. 8, 2011, issued in corresponding Japanese Application No. 2008-015160 with English Translation.
Kimata Takehito
Kobayashi Kiyomi
Denso Corporation
Fuqua Shawntina
Nixon & Vanderhye PC
LandOfFree
Ceramic heater, gas sensor, and method of producing ceramic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ceramic heater, gas sensor, and method of producing ceramic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramic heater, gas sensor, and method of producing ceramic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4272316