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:
Jul. 08, 1997
Filed:
Mar. 27, 1995
Applicant:
Inventor:
Roger W Pryor, Bloomfield Hills, MI (US);
Assignee:
Wayne State University, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313310 ; 313309 ; 313311 ; 313336 ; 313351 ;
Abstract
A cold cathode is formed of n-type boron nitride. The cathode may include a layer of diamond underlying the boron nitride. The cathodes are made by laser ablation or by sputtering. Electronic devices utilizing the boron nitride cathodes are also described.