Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826280 | Grooved optical transmission channel | Jun-ichi Hiramoto | 1989-05-02 |
| 4807597 | Fiberscope | Mitsuru Nishikawa, Kunio Awazu | 1989-02-28 |
KT
Koichi Tsuno
Overall (1989): #21,844 of 140,708Top 20%
2
Patents 1989