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:
May. 29, 2001
Filed:
Jul. 21, 1999
Applicant:
Inventors:
Kiyoshi Araki, Nagoya, JP;
Yuji Katsuda, Tsushima, JP;
Sadanori Shimura, Iwakura, JP;
Tsuneaki Ohashi, Ogaki, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 1/000 ;
U.S. Cl.
CPC ...
B23K 1/000 ;
Abstract
An aluminum nitride-based sintered body is disclosed, which includes aluminum nitride as a main ingredient and magnesium and has a polycrystalline structure composed of aluminum nitride crystals.