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:
Jun. 11, 2002
Filed:
Jul. 28, 1999
Kazuto Sakemura, Tsurugashima, JP;
Shuuichi Yanagisawa, Tsurugashima, JP;
Shingo Iwasaki, Tsurugashima, JP;
Nobuyasu Negishi, Tsurugashima, JP;
Takashi Chuman, Tsurugashima, JP;
Takashi Yamada, Tsurugashima, JP;
Atsushi Yoshizawa, Tsurugashima, JP;
Hideo Satoh, Tsurugashima, JP;
Takamasa Yoshikawa, Tsurugashima, JP;
Kiyohide Ogasawara, Tsurugashima, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
An electron emission device comprises an electron-supply layer made of metal or semiconductor and disposed on an ohmic electrode; an insulator layer formed on the electron-supply layer; and a thin-film metal electrode formed on the insulator layer. The electron-supply layer has a rectifier function layer, whereby the electron emission device emits electrons when an electric field is applied between the electron-supply layer and the thin-film metal.