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. 26, 1980
Filed:
Jun. 12, 1978
Takao Kishino, Mobara, JP;
Yoichi Mera, Mobara, JP;
Satoru Makita, Mobara, JP;
Tsutomu Morooka, Mobara, JP;
Futaba Denshi Kogyo Kabushiki Kaisha, Chiba, JP;
Abstract
A phosphorus luminescent display tube of the triode type having, in a vacuum casing, a filamentary cathode for emitting thermions, a control electrode for accelerating and controlling the thermions emitted from the cathode, a plurality of pattern display sections each composed of a plurality of segment anodes each coated with a phosphor layer for emitting light when the thermions impinge thereon, the segment anodes being selectively given an anode potential, and auxiliary anode conductors provided in the vicinity of and substantially on the same level with the segment anodes and kept positive with respect to the filamentary cathode so as to absorb electron oscillations occurring in the vicinity of the segment anodes to which the anode potential is not given.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile