Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5739921 | Communication system with line-master, master-slave disconnection detection means | — | 1998-04-14 |
| 5519763 | Communication apparatus with wireless intercommunication | Takeshi Namekawa, Masayuki Moteki, Hidenori Hayashi, Yukari Hashibe, Satoshi Fukuda | 1996-05-21 |