Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6226268 | Communication system | Keiichi Obara, Kazuo Nogami, Tamiya Ochiai | 2001-05-01 |
| 5062035 | Time slot allocation for loop networks | Shigeaki Tanimoto, Tadashi Kayano, Hirobumi Karasawa, Osamu Yamagishi | 1991-10-29 |
| 4779261 | Loop network | Osamu Yamagishi, Tatsuo Kaji | 1988-10-18 |
| 4504945 | Computer network system | — | 1985-03-12 |