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:
Jun. 25, 2019
Filed:
Sep. 11, 2014
Ishihara Chemical Co., Ltd., Kobe-shi, Hyogo, JP;
Takayuki Maeshima, Akashi, JP;
Issei Satoh, Kobe, JP;
Hisakazu Sakai, Akashi, JP;
Jun Furutani, Takashima, JP;
Yoshihiko Takata, Kobe, JP;
Tsukasa Kondo, Tsuruga, JP;
ISHIHARA CHEMICAL CO., LTD., Hyogo, JP;
Abstract
A Ta—Nb alloy powder which provides a capacitor having a higher capacitance than a Ta capacitor and a better thermal stability in terms of an oxide film than a Nb capacitor, the Ta—Nb alloy powder being a Ta—Nb alloy powder produced by a thermal CVD method, wherein a content of Nb is 1 to 50 mass %, and an average particle diameter of primary particles is 30 to 200 nm, preferably, a CV value per unit mass of the powder (μF·V/g) is 250 kμF·V/g or more, or further, a CV value per unit volume (μF·V/mm) in terms of a molded body whose molding density ρ (g/cm) is ρ(g/cm)=−0.012R+3.57, wherein R:Nb content (mass %) in an alloy, is 900 μF·V/mmor more, and an anode element for a solid electrolytic capacitor using the alloy powder.