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:
Nov. 19, 1991
Filed:
Jul. 13, 1988
Seishiro Yoshioka, Hiratsuka, JP;
Ichiro Nomura, Yamato, JP;
Hidetoshi Suzuki, Atsugi, JP;
Toshihiko Takeda, Tokyo, JP;
Tetsuya Kaneko, Yokohama, JP;
Yoshikazu Banno, Atsugi, JP;
Kojiro Yokono, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electron-emitting device is provided which includes a laminate having an insulating layer held between a pair of electrodes opposing each other, wherein an electron-emitting region insulated from the electrodes is formed at a side end surface of the insulating layer formed at the part at which the electrodes oppose each other, and electrons are emitted from the electron-emitting region by applying a voltage between the electrodes. A method for preparing the electron-emitting device is also provided.