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:
Apr. 22, 1997
Filed:
Dec. 19, 1994
Applicant:
Inventors:
Takashi Noma, Hadano, JP;
Seijiro Kato, Yokohama, JP;
Fumio Kishi, Kanagawa-ken, JP;
Hisaaki Kawade, Yokohama, JP;
Toshikazu Ohnishi, Sagamihara, JP;
Michiyo Nishimura, Sagamihara, JP;
Kumiko Uno, Urawa, JP;
Takahiro Horiguchi, Tokyo, JP;
Masato Yamanobe, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44C / ;
U.S. Cl.
CPC ...
216 40 ; 216100 ; 216101 ;
Abstract
An electron-emitting device comprising a pair of device electrodes and an electroconductive film including an electron-emitting region is manufactured by a method comprising a process of forming an electroconductive film including steps of forming a pattern on a thin film containing a metal element on the basis of a difference of chemical state, and removing part of the thin film on the basis of the difference of chemical state.