Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5280537 | Digital communication system using superposed transmission of high speed and low speed digital signals | Takatoshi Sugiyama, Shuji Kubota, Kiyoshi Enomoto, Shuzo Kato | 1994-01-18 |