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:
Oct. 13, 1992
Filed:
Oct. 06, 1988
Applicant:
Inventors:
Hidetoshi Suzuki, Atsugi, JP;
Ichiro Nomura, Yamato, JP;
Tetsuya Kaneko, Yokohama, JP;
Toshihiko Takeda, Tokyo, JP;
Yoshikazu Banno, Atsugi, JP;
Kojiro Yokono, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
315366 ; 313422 ; 3151693 ;
Abstract
An electron beam emitting device, includes a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applicator for applying a voltage independently on each of the electrodes, the voltage applicator applying a voltage on each electrode so that each of the electrodes may become higher or lower in potential relative to the other electrode.