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:
Jan. 14, 2003
Filed:
Aug. 30, 2001
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01K 7/13 ;
U.S. Cl.
CPC ...
H01K 7/13 ;
Abstract
A voltage nonlinear resistor has a voltage nonlinear resistive body including zinc oxide, and a side face high-resistance layer provided on the side face of the resistive body. The high-resistance layer contains zinc in an amount of 1.0 to 25% by weigh in terms of its oxide (ZnO), boron in an amount of 1.0 to 10% by weight in terms of its oxide (B O ), silicon in an amount of 0.1 to 5% by weight in terms of its oxide (SiO ), aluminum in an amount of 0.05 to 3% by weight in terms of its oxide (Al O ), and barium in an amount of 0.05 to 3% by weight in terms of its oxide (BaO), with bismuth being substantially the balance in terms of its oxide (Bi O ).