Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8072145 | Extra high pressure mercury lamp with each electrode held by a sealing portion | Shuki Kasaishi, Takuya Tsukamoto, Nobuhiko Sugihara | 2011-12-06 |
| 7999475 | Short arc type discharge lamp | Hirohisa Ishikawa, Nobuhiro Nagamachi | 2011-08-16 |
| 7898180 | High pressure discharge lamp | Nobuhiro Nagamachi | 2011-03-01 |