Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D277377 | Telephone set | Katsuhito Watanabe | 1985-01-29 |
| D271489 | Telephone set | Hisao Fukushima | 1983-11-22 |
| D271490 | Telephone set | Hisao Fukushima | 1983-11-22 |
| D270637 | Dialing pad | Hisao Fukushima | 1983-09-20 |