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. 18, 2021
Filed:
Jan. 09, 2017
Ngk Insulators, Ltd., Nagoya, JP;
Yuji Katsuda, Nagoya, JP;
Noboru Nishimura, Tsushima, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
The ceramic structureincludes a discoid ceramic baseand an electrodeburied in the ceramic base. The ceramic baseis a sintered body composed principally of alumina or a rare-earth metal oxide and has a thermal expansion coefficient of 7.5 to 9.5 ppm/K over the range of 40° C. to 1200° C. The electrodeis composed principally of metal ruthenium. The electrodemay be formed in the shape of a sheet. Alternatively, the electrodemay be patterned in the manner of a one-stroke sketch so as to extend over the entire cross section of the ceramic base
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile