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:
Sep. 09, 2008
Filed:
Mar. 17, 2006
Applicants:
Naomi Teratani, Nagoya, JP;
Naohito Yamada, Nagoya, JP;
Inventors:
Naomi Teratani, Nagoya, JP;
Naohito Yamada, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/581 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aluminum nitride sintered body is provided, which essentially contains aluminum nitride, 0.4 to 2.5 wt % magnesium and 2.0 to 5.0 wt % yttrium. The aluminum nitride sintered body has an average particle size of not more than 1.0 μm.