Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980670 | Deactivatable E.A.S. marker having a step change in magnetic flux | Jiro Yamasaki | 1990-12-25 |
| 4811000 | Article enclosure with magnetic marker deactivating means | James B. Cantey | 1989-03-07 |
| 4797658 | Article surveillance marker capable of being deactivated by relieving the retained stress therein and method and system for deactivating the marker | — | 1989-01-10 |
| 4686516 | Method, system and apparatus for use in article surveillance | — | 1987-08-11 |
| 4660025 | Article surveillance magnetic marker having an hysteresis loop with large Barkhausen discontinuities | — | 1987-04-21 |