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. 21, 1996
Filed:
Jan. 26, 1995
Applicant:
Inventors:
Wolfgang Rossner, Holzkirchen, DE;
Hermann Boedinger, Puchheim, DE;
Juergen Leppert, Inning, DE;
Christa Grabmaier, Berg, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
2523014 ; 423263 ; 423518 ;
Abstract
In an improved method for manufacturing a phosphor ceramic on the basis of a rare earth oxisulfide, a phosphor powder having a high specific surface of more than 10 m.sup.2 per gram is employed and is compressed to form a high-density, optically pure and translucent ceramic by single-axis hot-pressing under a reducing atmosphere.