The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1992
Filed:
May. 24, 1991
Applicant:
Inventors:
Yasuhito Yajima, Nagoya, JP;
Hiroshi Nakajima, Nagoya, JP;
Assignee:
NGK Insulators, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338270 ; 338271 ; 338273 ; 338275 ; 338276 ;
Abstract
A resistor element for determining a parameter, which includes a ceramic support having a bearing surface, an electrically resistive metallic layer formed on the bearing surface of the ceramic support, and a glass coating covering the metallic layer. The metallic layer has a plurality of pores which extend from an outer surface of the metallic layer to the bearing surface of the ceramic support, each pore having an area which is not smaller than that of a circle having a diameter of 1 .mu.m. An average spacing between adjacent ones of the pores is not larger than 5 .mu.m.