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:
Mar. 17, 1992
Filed:
Jun. 05, 1991
Applicant:
Inventor:
Hideko Fukushima, Kumagaya, JP;
Assignee:
501 Hitachi Metals, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501 98 ; 501 96 ; 156 89 ; 165 803 ;
Abstract
A diffusion-bonded assembly of AlN ceramic bodies, at least one of the AlN ceramic bodies having a boundary phase content of 1000 ppm or more. A heat dissipation member constituted by diffusion-bonded AlN ceramic bodies, at least one of the AlN ceramic bodies having a boundary phase content of 1000 ppm or more.