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. 17, 2007
Filed:
Feb. 17, 2006
Takahisa Iida, Hirakata, JP;
Mutsumi Yano, Hirakata, JP;
Mamoru Kimoto, Hirakata, JP;
Yasumi Kobayashi, Yawata, JP;
Hiroshi Nonoue, Hirakata, JP;
Takahisa Iida, Hirakata, JP;
Mutsumi Yano, Hirakata, JP;
Mamoru Kimoto, Hirakata, JP;
Yasumi Kobayashi, Yawata, JP;
Hiroshi Nonoue, Hirakata, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A solid electrolytic capacitor comprising: an anode of valve metals or alloy of which main component is valve metals; a dielectric layer formed by anodizing the anode; and a cathode formed on the dielectric layer, wherein the dielectric layer comprises a first dielectric layer located on the anode side and a second dielectric layer formed on the first dielectric layer, and oxygen concentration of the second dielectric layer is decreased from the first dielectric layer side toward the cathode side.