Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962977 | Low pressure discharge lamp having electrodes with a lithium-containing electrode emission material | Keiichi Matsumoto, Yukiharu Tagawa, Toyohiko Kumada, Makoto Fujii | 1999-10-05 |