Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Impregnated cathode and method of manufacturing same, electron gun and electron tube

Impregnated cathode and method of manufacturing same, electron gun and electron tube

US Patent 6425793 · Granted Jul 30, 2002

Estimated economic value: $784,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Management system, network device, control method, and non-transitory computer-r2025
Radar apparatus and radar system2025
Display device, method for manufacturing display device, and electronic apparatu2024
Device management server and control method thereof2024
Estimation and identification device and estimation and identification system2024
Radar apparatus2024
Information processing apparatus for installing applications related to a predet2023
Radar device2023
Intraoral moisture measuring device2022
Liquid crystal composition and liquid crystal display element including the same2022
Communication terminal measurement system, communication terminal measurement ap2022
Measurement device, communication terminal measurement system, and measurement-r2022