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:
Sep. 07, 2021
Filed:
Sep. 16, 2019
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Takeo Arakawa, Nagaokakyo, JP;
Hiromasa Saeki, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Abstract
A capacitor including a conductive metal base material having a porous part, a dielectric layer on the porous part, an upper electrode on the dielectric layer, and an oxide film on a surface of the conductive metal base material. The oxide film on the surface of the metal base material operates as an insulating layer between a lower electrode and an upper electrode, and the metal base material and the oxide film are preferably integrated so that separation of the insulating layer can be prevented, and a short circuit between the lower electrode and the upper electrode can be suppressed.