Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496159 | Simple helical antenna and method of producing the same | — | 2002-12-17 |
| 6429830 | Helical antenna, antenna unit, composite antenna | Hirokazu Awa, Masaaki Miyata | 2002-08-06 |