Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5214345 | Ultraviolet ray-shielding agent and tube | Mitsumasa Saito | 1993-05-25 |
| 5051650 | Ultraviolet-suppressed light source, coating agent used in the same, and method for manufacturing the same | Akira Taya, Keiji Hatakeyama, Mitsumasa Saito, Kazuhiko Osada | 1991-09-24 |