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. 01, 2001
Filed:
Sep. 14, 1999
Tamaki Kobayashi, Isehara, JP;
Noritake Suzuki, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An emission current (Ie,) emitted by the electron-emitting device and/or a device current (If,) flowing through the electron-emitting device are measured when a voltage (V,) is applied to the electron-emitting device and an emission current (Ie,) emitted by the electron-emitting device and/or a device current (If,) flowing through the electron-emitting device are measured when the voltage (V,) is applied to the electron-emitting device after the measurement step. A voltage (V,) higher than the voltage (V,) is applied to the electron-emitting device when the emission current (Ie,) is larger than the emission current (Ie,) and/or the device current (If,) is larger than the device current (If,).