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:
Feb. 15, 1983
Filed:
Mar. 18, 1981
Nobuyuki Yoshioka, Fujisawa, JP;
Tsutai Suzuki, Tokyo, JP;
Masanori Haba, Kashiwa, JP;
Hideo Koyama, Tokyo, JP;
Kabushiki Kaisha Meidensha, Tokyo, JP;
Abstract
There is provided a method of making a non-linear voltage-dependent resistor containing a ZnO element including zinc oxide as its major component by forming or coating a layer of high insulation material on the element. The layer is formed due to a vapor-solid reaction in the atmosphere of a vaporizable molecular compound containing Sb.sub.2 O.sub.3, Bi.sub.2 O.sub.4 or SiO.sub.2 at a sintering temperature. Preferably, the layer is formed due to a vapor-solid reaction in the atmosphere of a vaporization retarding compound containing ZnO, or SiO.sub.2 in addition to the vaporizable molecular compound at a sintering temperature within a sintering vessel.