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:
Apr. 21, 2025
Filed:
Apr. 29, 2021
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Masaki Ando, Ome, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Abstract
To provide a thick film resistor paste for a resistor having a smaller resistance change rate and excellent surge resistance, a thick film resistor using the thick film resistor paste, and an electronic component provided with the thick film resistor. A thick film resistor paste comprises a lead-ruthenate-containing glass powder and an organic vehicle, the lead-ruthenate-containing glass powder comprises 10 to 70 mass % of lead ruthenate, a glass composition of the lead-ruthenate-containing glass powder comprises 3 to 30 mass % of silicon oxide, 30 to 90 mass % of lead oxide. 5 to 50 mass % of boron oxide relative to 100 mass % of glass components, and, a combined amount of silicon oxide, lead oxide and boron oxide by mass % is 50 mass % or more relative to 100 mass % of the glass components.