Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863625 | Titanium-containing and cobalt-containing manganese-zinc ferrite core and method of manufacturing same | Johannus J. Roelofsma | 1989-09-05 |
| 4730145 | Deflection unit having a thin-walled yoke ring for cathode-ray tubes | Aant B. D. van der Meer | 1988-03-08 |
| 4564489 | Method and holder for the manufacture of annular cores | Jozef T. A. M. Welzen, Aant B. D. van der Meer, Rudolf O. M. Lobel, Berend J. Nijhof | 1986-01-14 |
| 4431979 | Synthetic resin-bonded electromagnetic component and method of manufacturing same | Cornelis J. Esveldt | 1984-02-14 |