Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5087985 | Polarizer for visible light | Koichi Kitaura, Shoji Kigoshi | 1992-02-11 |
| 4464431 | Friction-melt resistant textile product and preparing method thereof | Junnosuke Nagashima, Katsuo Kanno | 1984-08-07 |