Coating processes – Electrical product produced
Patent
1996-08-28
1998-06-16
Lusignan, Michael
Coating processes
Electrical product produced
427123, 4271263, 427435, 427230, 427437, 204427, B05D 512
Patent
active
057666725
ABSTRACT:
An oxygen concentration detector element 2 includes a cup-shaped solid electrolyte 20 with an inside chamber 25 opened at one end and closed at the other end. An external electrode 21 is formed on an outer surface of solid electrolyte 20 by dipping solid electrolyte 20 in first chemical plating liquid 81, while an internal electrode 22 is formed on an inner surface of solid electrolyte 20 by introducing second chemical plating liquid 82 into inside chamber 25. First, in an injecting step, an injection needle 11 is inserted into inside chamber 25 and second chemical plating liquid 82 is introduced into inside chamber 25 via injection needle 11, and then injection needle 11 is pulled out of inside chamber 25. Next, in a plating step, internal electrode 22 is formed on the inner surface of inside chamber 25 using second chemical plating liquid 82. Then, in a discharging step, residual second chemical plating liquid 82 is discharged from inside chamber 25.
REFERENCES:
patent: 4650697 (1987-03-01), Kitagawa et al.
patent: 4956072 (1990-09-01), Kojima et al.
Abstract 4,229,835 dated Sep. 1992.
Abstract 4,330,749 dated Sep. 1983.
Fujii Namitsugu
Hotta Yasumichi
Miwa Naoto
Sano Hiromi
Lusignan Michael
Nippondenso Co. Ltd.
Talbot Brian K.
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