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:
Feb. 04, 2003
Filed:
Apr. 15, 1998
Applicant:
Inventors:
Takeo Tsukamoto, Atsugi, JP;
Mamoru Miyawaki, Tokyo, JP;
Tetsuya Kaneko, Yokohama, JP;
Akira Suzuki, Yokohama, JP;
Isamu Shimoda, Zama, JP;
Toshihiko Takeda, Tokyo, JP;
Masahiko Okunuki, Itsukaichi-machi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/20 ; G09G 3/22 ; H01J 1/62 ;
U.S. Cl.
CPC ...
G09G 3/20 ; G09G 3/22 ; H01J 1/62 ;
Abstract
An electron emission device comprises an electron emission electrode with a pointed end and a counter electrode positioned opposite to the pointed end, both formed by fine working of a conductive layer laminated on an insulating substrate.
Tsukamoto, Takeo. (2003). Electron emission device with gap between electron emission electrode and substrate (U.S. Patent No. 6515640). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6515640
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile