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:
Oct. 22, 2019
Filed:
Nov. 09, 2016
Applicant:
Carestream Health, Inc., Rochester, NY (US);
Inventors:
Xiaohui Wang, Pittsford, NY (US);
Michael K. Rogers, Mendon, NY (US);
Assignee:
Carestream Health, Inc., Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 35/20 (2006.01); H01J 35/06 (2006.01); H01J 9/39 (2006.01); H01J 35/32 (2006.01);
U.S. Cl.
CPC ...
H01J 35/20 (2013.01); H01J 9/39 (2013.01); H01J 35/065 (2013.01); H01J 35/32 (2013.01); H01J 2201/30469 (2013.01); H01J 2235/062 (2013.01); H01J 2235/205 (2013.01);
Abstract
An X-ray tube has a housing enclosing a vacuum chamber. There is a primary field-emission cathode within the vacuum chamber, a secondary cathode within the vacuum chamber, spaced apart from the primary cathode, and an anode target within the vacuum chamber.