Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4584580 | Apparatus for rejecting jamming waves | Kenichi Chiwaki, Sadatoshi Narazaki | 1986-04-22 |
| 4395779 | Jamming wave rejecting device | Fujio Osawa, Kenichi Chiwaki, Sadatoshi Narazaki | 1983-07-26 |
| 4214245 | Loran receiving apparatus | Fujio Osawa, Noriaki Nagao, Shigeo Hanji | 1980-07-22 |