Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4500168 | Single polarization optical fibers | Hiroshi Kajioka, Toshihide Tokunaga | 1985-02-19 |
| 4493530 | Single polarization optical fibers | Hiroshi Kajioka, Toshihide Tokunaga | 1985-01-15 |
| 4483735 | Manufacturing process of semi-insulating gallium arsenide single crystal | Tomoki Inada, Seiji Mizuniwa, Toshiya Toyoshima, Masashi Fukumoto | 1984-11-20 |