Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875758 | Plastic-coated optical transmission fiber and an estimating method thereof | Toshifumi Hosoya | 1989-10-24 |
SM
Shigeo Masuda
Overall (1989): #57,405 of 140,708Top 45%
1
Patents 1989