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Class Information
Number: 313/452
Name: Electric lamp and discharge devices > Cathode ray tube > Ray generating or control > Including cathode assembly > With focus electrode adjacent cathode
Description: Subject matter including a focus electrode immediate the cathode.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7135814 |
Electron gun for cathode ray tube having SVM coil and cathode ray tube having the electron gun |
Nov. 14, 2006 |
| 7122977 |
Cathode-ray tube apparatus |
Oct. 17, 2006 |
| 7009333 |
Structure of electron gun for color cathode ray tube |
Mar. 7, 2006 |
| 6989630 |
Electrode for election gun, method of manufacturing electrode for electron gun, and electron gun assembly |
Jan. 24, 2006 |
| 6891321 |
Oil-free electron source having cathode and anode members adjustable with five degrees of freedom |
May. 10, 2005 |
| 6841924 |
Low-voltage high-resolution einzel gun |
Jan. 11, 2005 |
| 6774552 |
Electron gun |
Aug. 10, 2004 |
| 6703776 |
Cathode ray tube |
Mar. 9, 2004 |
| 6538370 |
Cathode-ray tube and electron gun having reduced radiation |
Mar. 25, 2003 |
| 6448703 |
Electrode unit with inverted dynamic focus voltage applied thereto for forming quadrupole lens and dynamic focus electron gun using the same |
Sep. 10, 2002 |
| 6437498 |
Wide-angle deflection color cathode ray tube with a reduced dynamic focus voltage |
Aug. 20, 2002 |
| 6369542 |
Trolling motor foot control with fine speed adjustment |
Apr. 9, 2002 |
| 6351084 |
Method and a device for reducing an electric field produced by a cathode ray tube in its surroundings |
Feb. 26, 2002 |
| 6294868 |
Electron gun for electron tube with cold cathode |
Sep. 25, 2001 |
| 6051917 |
Electron beam gun |
Apr. 18, 2000 |
| 5990608 |
Electron gun having a cathode with limited electron discharge region |
Nov. 23, 1999 |
| 5796212 |
Linear beam microwave tube with planar cold cathode electrode as electron beam source |
Aug. 18, 1998 |
| 5585691 |
Electron beam generation and control for dynamic color separation |
Dec. 17, 1996 |
| 5510670 |
Electron beam device having a glass envelope and a focussing lens provided thereon |
Apr. 23, 1996 |
| 5481157 |
Electron gun for cathode-ray tube |
Jan. 2, 1996 |
| 5336973 |
System making it possible to control the shape of a charged particle beam |
Aug. 9, 1994 |
| 5332945 |
Pierce gun with grading electrode |
Jul. 26, 1994 |
| 5208507 |
In-line type electron gun enabling easy centering between main electrode and auxiliary electrode |
May. 4, 1993 |
| 5134339 |
High-voltage lead-through for particle-beam apparatus |
Jul. 28, 1992 |
| 5126628 |
Flat panel color display |
Jun. 30, 1992 |
| 5015911 |
Multistep focusing electron gun for cathode ray tube |
May. 14, 1991 |
| 4988913 |
Flat configuration cathode ray tube |
Jan. 29, 1991 |
| 4900982 |
Electron gun design |
Feb. 13, 1990 |
| 4873468 |
Multiple sheet beam gridded electron gun |
Oct. 10, 1989 |
| 4855638 |
Camera tube system and electron gun therefor |
Aug. 8, 1989 |
| 4827184 |
Electron beam device and a focusing lens therefor |
May. 2, 1989 |
| 4825123 |
Two-piece cathode cup |
Apr. 25, 1989 |
| 4764947 |
Cathode focusing arrangement |
Aug. 16, 1988 |
| 4760308 |
Electron gun for color picture tubes |
Jul. 26, 1988 |
| 4661741 |
Miniature electron gun with focusing grid structure |
Apr. 28, 1987 |
| 4467243 |
Electron gun |
Aug. 21, 1984 |
| 4409513 |
Electrode for an electron gun |
Oct. 11, 1983 |
| 4376907 |
Television camera tube with diode electron gun |
Mar. 15, 1983 |
| 4345182 |
Electrode having spiral-shaped electrically conducting regions therein useful as an anode in electron beam discharge devices |
Aug. 17, 1982 |
| 4309638 |
Electron gun cathode support |
Jan. 5, 1982 |
| 4096406 |
Thermionic electron source with bonded control grid |
Jun. 20, 1978 |
| 4021697 |
Crossed-field amplifier |
May. 3, 1977 |
| 3983446 |
Gridded convergent flow electron gun for linear beam tubes |
Sep. 28, 1976 |
| 3963955 |
Means and method for suppressing oscillations in electron guns |
Jun. 15, 1976 |
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