Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4947394 | Spare channel monitor circuit | Masahiro Nakajima | 1990-08-07 |
| 4942371 | Phase-locked loop having improved input jitter characteristics | Masahiro Nakajima | 1990-07-17 |
| 4811359 | Protection channel monitoring system using a check signal comprising two different N-bit code patterns sequentially arranged at random | Masahiro Nakajima | 1989-03-07 |