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:
Dec. 14, 2021
Filed:
Mar. 26, 2020
Tdk Corporation, Tokyo, JP;
Yusuke Oba, Tokyo, JP;
Raitarou Masaoka, Tokyo, JP;
Shohei Fujii, Tokyo, JP;
Maiko Shirokawa, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A dielectric film comprises a complex oxide represented by a general formula xAO-yBO-zCOas a main component, wherein A is at least one selected from barium, calcium and strontium, B is at least one selected from magnesium and zinc, C is at least one selected from niobium and tantalum, x, y and z satisfy relations: x+y+z=1.000, 0.375≤x≤0.563, 0.250≤y≤0.500, and x/3≤z≤(x/3)+1/9, and a full width at half maximum of a diffraction peak of a (110) plane of the complex oxide is 0.40° or more in an X-ray diffraction chart of the dielectric film.