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:
Oct. 21, 2003
Filed:
Jan. 17, 2002
Nobuyuki Sato, Chiba, JP;
Kawatetsu Mining Co., Ltd., Tokyo, JP;
Abstract
A niobium powder for forming an anode of a solid electrolytic capacitor which improves the defects in the prior art that an average particle diameter is too small, niobium is consumed as an oxide film in anodic oxidation step and the effective electrode surface area decreases. In the improved powder, for primary particles, the average particle diameter is 0.10-2 &mgr;m, the geometric standard deviation of particle size distribution exceeds 1.4 and the degree of sphericity is 2 or less. Anodes for solid electrolytic capacitors which are suitable for the use of super-high capacity can be manufactured by using the improved powder.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile