Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552485 | Electron tube comprising a semiconductor cathode | Ron Kroon, Tom Van Zutphen | 2003-04-22 |
| 6528958 | Display device and cathode ray tube | Jozef J. M. Hulshof | 2003-03-04 |
| 6333500 | Method of inspecting a substrate furnished with a phosphor layer | Lambertus J. J. Van Rijsewijk, Pieter Scholten, Petrus J. Uitterhoeve | 2001-12-25 |
| 6262527 | Cathode ray tube with a getter coating in the vicinity of a semiconductor cathode | Tom Van Zutphen | 2001-07-17 |
| 6236154 | Electron tube with a cesium source | Ron Kroon, Tom Van Zutphen | 2001-05-22 |
| 6064074 | Semiconductor cathode and electron tube comprising a semiconductor cathode | Tom Van Zutphen, Mark A. De Samber, Erwin Hijzen, Ron Kroon | 2000-05-16 |
| 5864201 | Electron-optical device having separate elongate electron-emitting regions | Tom Van Zutphen, Albert Manenschijn | 1999-01-26 |
| 5831380 | Electron-optical device | Tom Van Zutphen | 1998-11-03 |