Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5490135 | Method and system for arranging common channel signal network through | Masashi Hiraiwa, Noboru Mizuhara | 1996-02-06 |
| 5333187 | Switching system for electronic switcher | Masashi Hiraiwa | 1994-07-26 |