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:
May. 04, 1982
Filed:
Sep. 08, 1980
Applicant:
Inventors:
Michihiro Murata, Kyoto, JP;
Shinsei Okabe, Takatsuki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01W / ;
U.S. Cl.
CPC ...
338 35 ; 29620 ; 73335 ;
Abstract
A humidity sensitive device comprises a base body of a preferably porous semiconductive ceramic having a grain boundary. A high resistance layer is formed in the grain boundary of the semiconductive ceramic and exhibits a humidity sensitive characteristic. First and second electrodes for withdrawing an electrical signal are formed spaced from each other on at least one major surface of the semiconductive ceramic base.