Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6594274 | Detection circuit for detecting state of use of B channel and ISDN terminal using the same detection circuit | — | 2003-07-15 |
| 5475706 | Bulk data transmission system | Yoshikazu Kobayashi | 1995-12-12 |