Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366572 | Data transmission system | Toshiharu Takatsuki, Ken Fujiwara, Shigeru Okamura | 1982-12-28 |
| 4321429 | Apparatus for selecting terminal equipment in telephone lines | Toshiharu Takatsuki, Ken Fujiwara, Shigeru Okamura | 1982-03-23 |