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:
Aug. 09, 2011
Filed:
Mar. 26, 2007
Ryota Tanaka, Saitama, JP;
Nobuyasu Negishi, Saitama, JP;
Kazuto Sakemura, Saitama, JP;
Yoshiyuki Okuda, Saitama, JP;
Tomonari Nakada, Saitama, JP;
Atsushi Watanabe, Saitama, JP;
Takamasa Yoshikawa, Saitama, JP;
Kiyohide Ogasawara, Saitama, JP;
Ryota Tanaka, Saitama, JP;
Nobuyasu Negishi, Saitama, JP;
Kazuto Sakemura, Saitama, JP;
Yoshiyuki Okuda, Saitama, JP;
Tomonari Nakada, Saitama, JP;
Atsushi Watanabe, Saitama, JP;
Takamasa Yoshikawa, Saitama, JP;
Kiyohide Ogasawara, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An electron emitting device includes an amorphous electron supply layer, an insulating layer formed on the electron supply layer, and an electrode formed on the insulating layer. The electron emits device emitting electrons when an electric field is applied between the electron supply layer and the electrode. The electron emitting device includes a concave portion provided by notching the electrode and the insulating layer to expose the electron supply layer, and a carbon layer covering the electrode and the concave portion except for an inner portion of an exposed surfaceof the electron supply layer and being in contact with an edge portion of the exposed surface of the electron supply layer.