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:
Nov. 11, 2003
Filed:
Mar. 19, 2001
Akira Sato, Tokyo, JP;
Yasuo Watanabe, Tokyo, JP;
Takashi Fukui, Tokyo, JP;
Mikio Takahashi, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A method of producing an electronic device comprising a dielectric layer constituted by a dielectric ceramic composition containing a main component expressed by a composition formula of {(Sr Ca )O} . (Ti Zr )O , wherein the mole ratio m satisfies 0.94<m<1.08, the code x satisfies 0≦x≦1.00 and the code y satisfies 0≦y≦0.20; and a fourth subcomponent including an oxide of R (note that R is at least one of rare-earth element); characterized by producing the dielectric ceramic composition by using a composition source material wherein at least a part of a source material for the fourth subcomponent is brought to react with a source material for the main component. According to the method, it is possible to produce an electronic device, such as a chip capacitor, having excellent resistance to reducing during firing and excellent capacity-temperature characteristics after firing, wherein an accelerating lifetime of insulation resistance is improved and thus the credibility is improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile