Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859223 | Method of manufacturing polarization-maintaining optical fibers | Hiroshi Kajioka, Yuuetsu Takuma, Tatsuo Teraoka | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859223 | Method of manufacturing polarization-maintaining optical fibers | Hiroshi Kajioka, Yuuetsu Takuma, Tatsuo Teraoka | 1989-08-22 |