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:
Jan. 31, 2012
Filed:
Oct. 02, 2009
Applicant:
Yohei Hashizume, Machida, JP;
Inventor:
Yohei Hashizume, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 29/46 (2006.01); H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electron emission device in an electron beam apparatus includes an insulating member having a recess on a surface thereof, a gate, and a cathode opposed to the gate via the recess. The recess has a depression formed in a surface of the recess.
Hashizume, Yohei. (2012). Electron beam apparatus having a recess formed in a surface of an insulating member (U.S. Patent No. 8106575). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8106575
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile