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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.:

US 9378894 B1

PDFFull Text
Expired
Date of Patent:
Jun. 28, 2016

Filed:

Aug. 08, 2012

Method for producing electrolytic capacitors from valve metal powders

Applicants:

Helmut Haas, Achim, DE;

Marcel Hagymasi, Goslar, DE;

Holger Brumm, Goslar, DE;

Christoph Schnitter, Holle, DE;

Inventors:

Helmut Haas, Achim, DE;

Marcel Hagymasi, Goslar, DE;

Holger Brumm, Goslar, DE;

Christoph Schnitter, Holle, DE;

Assignee:

H.C. STARCK GMBH, Goslar, DE;

Attorney:

Norman B. Thot

Primary Examiner:

Dion R Ferguson

Int. Cl.
CPC ...
H01G 9/00 (2006.01); B22F 3/24 (2006.01); B22F 7/00 (2006.01); H01G 9/052 (2006.01); H01G 9/15 (2006.01); B22F 3/10 (2006.01); B22F 3/11 (2006.01); B22F 3/12 (2006.01);
U.S. Cl.
CPC ...
H01G 9/0029 (2013.01); B22F 3/10 (2013.01); B22F 3/1146 (2013.01); B22F 3/12 (2013.01); B22F 3/24 (2013.01); B22F 7/004 (2013.01); H01G 9/0032 (2013.01); H01G 9/052 (2013.01); H01G 9/0525 (2013.01); H01G 9/15 (2013.01); Y10T 29/49204 (2015.01);
Abstract

A process for producing an anode for an electrolytic capacitor includes pressing a tantalum powder around a tantalum wire, a tantalum ribbon, or a tantalum sheet to form a pressed body. The pressed body is sintered to form a porous sintered body. The porous sintered body is cooled to form a cooled porous sintered body. The cooled porous sintered body is treated with at least one oxidant comprising at least one of a gaseous oxidant and a liquid oxidant to form a treated sintered body. The treated sintered body is anodically oxidized in an electrolyte to form a dielectric layer.

Find Patent Forward Citations

Haas, Helmut. (2016). Method for producing electrolytic capacitors from valve metal powders (U.S. Patent No. 9378894). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9378894

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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