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:
Sep. 03, 2013
Filed:
Sep. 23, 2010
Mariko Suzuki, Yokohama, JP;
Tadashi Sakai, Yokohama, JP;
Naoshi Sakuma, Yokohama, JP;
Masayuki Katagiri, Kawasaki, JP;
Yuichi Yamazaki, Inagi, JP;
Mariko Suzuki, Yokohama, JP;
Tadashi Sakai, Yokohama, JP;
Naoshi Sakuma, Yokohama, JP;
Masayuki Katagiri, Kawasaki, JP;
Yuichi Yamazaki, Inagi, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to the embodiment, an electron emission element includes a conductive substrate, a first diamond layer of a first conductivity type formed on the conductive substrate, and a second diamond layer of the first conductivity type formed on the first diamond layer. Thereby, it becomes possible to provide the electron emission element having a high electron emission amount and a high current density even in a low electric field at low temperature and the electron emission apparatus using this electron emission element.