Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369509 | Short arc lamp with crack-preventing electric mounting arrangement | Keisuke Ookubo, Toshiyuki Shima | 2002-04-09 |
| 6107741 | Cathode structure for short arc type discharge lamp | Akiyasu Yamaguchi, Masanori Sugihara | 2000-08-22 |
| 5818169 | High power mercury lamp of the short arc type with specific cathode design and process for operation thereof | Kiyotada Nakamura, Toshiyuki Shima, Osamu Inoue | 1998-10-06 |