Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864259 | Ladder-type electric filter circuit apparatus | Kenji Takamoro, Tatsuo Ogawa, Yasuhiko Nakagawa | 1989-09-05 |
| 4435840 | Radio mobile communication system wherein probability of loss of calls is reduced without a surplus of base station equipment | Junichiroh Kojima | 1984-03-06 |