Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452334 | Arc tube with residual-compressive-stress layer for discharge lamp unit and method of manufacturing same | Yoshitaka Ohshima, Shinichi Irisawa | 2002-09-17 |
| 6411037 | Arc tube for discharge lamp device and method of manufacturing the same | Yoshitaka Ohshima, Takeshi Fukuyo, Shinichi Irisawa | 2002-06-25 |
| 6354900 | Arc tube and fabricating method thereof | Yoshitaka Ohshima, Takeshi Fukuyo, Shinichi Irisawa | 2002-03-12 |