Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647012 | Interface apparatus and frequency-fluctuation test method | — | 2003-11-11 |
| 5778001 | Interface device | Mikio Nakayama, Tetsuo Tachibana, Yuzo Okuyama, Satoshi Makuma | 1998-07-07 |
| 5555261 | Interface device between a network and an exchange for assembling fixed-length cell and transmitting the same | Mikio Nakayama, Tetsuo Tachibana, Yuzo Okuyama, Satoshi Kakuma | 1996-09-10 |