Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7423984 | Digital subscriber line transmission method, apparatus and system | Kazutomo Hasegawa, Seiji Miyoshi, Nobukazu Koizumi, Yutaka Awata | 2008-09-09 |
| 7336627 | Digital subscriber line transmission method, apparatus and system | Kazutomo Hasegawa, Seiji Miyoshi, Nobukazu Koizumi, Yutaka Awata | 2008-02-26 |
| 7286495 | Digital subscriber line transmission method, apparatus and system | Kazutomo Hasegawa, Seiji Miyoshi, Nobukazu Koizumi, Yutaka Awata | 2007-10-23 |