Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809267 | Packet data communication system with ring type transmission line | Masahiro Higuchi, Haruki Fukuda, Masahiro Matsuda, Tomohiko Awazu | 1989-02-28 |
KT
Kenshi Tazaki
Overall (1989): #87,616 of 140,708Top 65%
1
Patents 1989