Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654353 | Network and node device | Haruo YAGO | 2003-11-25 |
| 5469428 | Loop-back system in a dual ring network | Yoshio Kajiyama, Hideo Tatsuno, Takashi Nakashima | 1995-11-21 |
| 5448390 | Wavelength division multiplex bothway optical communication system | Toshiyuki Tsuchiya, Ikutaro Kobayashi | 1995-09-05 |
| 5400329 | Packet network and method for congestion avoidance in packet networks | Yoshio Kajiyama, Hideo Tatsuno | 1995-03-21 |
| 5204903 | Secure communication equipment and secure transmission system | Kenji Okada, Fumio Mano, Kiyomi Kumozaki, Noriki Miki | 1993-04-20 |
| 4562582 | Burst signal receiving apparatus | Yoshiro Hakamata, Kimio Oguchi | 1985-12-31 |