Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353066 | Channel switching network | Tetsuro Inomata, Hikaru Takematsu | 1982-10-05 |
| 4234765 | Key telephone system | Kouichi Sekiguchi, Hikaru Takematsu | 1980-11-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353066 | Channel switching network | Tetsuro Inomata, Hikaru Takematsu | 1982-10-05 |
| 4234765 | Key telephone system | Kouichi Sekiguchi, Hikaru Takematsu | 1980-11-18 |