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. 13, 1993
Filed:
Jul. 03, 1991
Applicant:
Inventors:
Keiji Hirabayashi, Tokyo, JP;
Noriko Kurihara, Tokyo, JP;
Takeo Tsukamoto, Atsugi, JP;
Nobuo Watanabe, Gotenba, JP;
Masahiko Okunuki, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 10 ; 257200 ; 257485 ; 257 77 ; 257508 ; 3133 / ; 313446 ; 313499 ; 437176 ; 437177 ; 423446 ;
Abstract
An electron emitting device is provided with a p-semiconductor layer formed on a semiconductor substrate. The p-semiconductor layer is composed of a diamond layer.