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:
Dec. 08, 2020
Filed:
Nov. 05, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Mizuki Nagasaki, Yokohama, JP;
Hidekazu Takahashi, Zama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/02 (2006.01); H01J 37/244 (2006.01); H01J 37/26 (2006.01);
U.S. Cl.
CPC ...
H01J 49/025 (2013.01); H01J 37/244 (2013.01); H01J 37/265 (2013.01); H01J 2237/28 (2013.01);
Abstract
An electron beam detection element includes a control unit configured to cause a diode to transition from an inactive state to an active state in response to a change of signal level of a control signal for causing an electron gun to change from an inactive state to an active state.