Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604396 | Luminescent material for mercury discharge lamp including phosphor and a continuous protective layer | Akio Watanabe, Shoji Naoki, Masaaki Tamatani, Kenji Terashima | 1997-02-18 |