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:
Dec. 01, 2009
Filed:
Jul. 10, 2008
Masahiko Kimura, Kusatsu, JP;
Kosuke Shiratsuyu, Omihachiman, JP;
Masahiko Kimura, Kusatsu, JP;
Kosuke Shiratsuyu, Omihachiman, JP;
Abstract
Anisotropically shaped ceramic particles are represented by the general formula {(KNaLi)(NbTa)O+aMeO} (where Me is at least one element selected from the group consisting of antimony, copper, manganese, vanadium, silicon, titanium, and tungsten; and b is a positive number determined by the valence of Me), where x, y, z, and a satisfy 0≦x≦0.5, 0≦y≦0.3, 0≦z≦0.3, and 0.001≦a≦0.1, respectively. The anisotropically shaped ceramic particles have a plate-like shape. The average particle size is 1 to 100 μm, and the ratio D/t of the maximum diameter D of a main surface to the thickness t in a direction perpendicular to the main surface is 2 or more, preferably 5 or more. Thus, anisotropically shaped ceramic particles suitable as a reactive template for preparing a crystal-oriented alkali metal niobate-based ceramic can be produced at relatively low production costs without the need for a complicated production process.