Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10153152 | High-pressure sodium lamp lighting device | Hiroki Takahashi, Takuya Shimomura | 2018-12-11 |
| 8471472 | UV enhancer for discharge lamp and manufacturing method thereof | Yousuke Ishikawa, Nobuo Fukuda, Hirokazu Harasawa | 2013-06-25 |
| 8154182 | Light source device | Yosuke Kano, Makoto Okahara, Yousuke Ishikawa | 2012-04-10 |