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.

Date of Patent:
Jun. 21, 2005

Filed:

Dec. 18, 2001
Applicants:

Nobuhiko Tanaka, Hirakata, JP;

Yukio Higuchi, Omihachiman, JP;

Masayoshi Katsube, Omihachiman, JP;

Mitsuru Sube, Yokaichi, JP;

Inventors:

Nobuhiko Tanaka, Hirakata, JP;

Yukio Higuchi, Omihachiman, JP;

Masayoshi Katsube, Omihachiman, JP;

Mitsuru Sube, Yokaichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B035/48 ; C04B035/495 ;
U.S. Cl.
CPC ...
Abstract

A ceramic material powder for a translucent ceramic is molded with a binder, and the resulting green compact is embedded in a ceramic powder having the same composition with the ceramic material powder. After removing the binder, the green compact embedded in the ceramic powder is fired in an atmosphere having an oxygen concentration higher than that in the removal procedure of the binder and thereby yields a translucent ceramic represented by Formula I: Ba{(SnZr)MgTa}O, Formula II: Ba(ZrMgTa)Oor Formula III: Ba{(SnZr)ZnMg)Nb}O. The translucent ceramic has a refractive index of 1.9 or more and is paraelectric.


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