Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815385 | Tungsten sealing glass for use in a fluorescent lamp | Koichi Hashimoto | 2004-11-09 |
| 6727198 | Infrared absorbing glass for reed switch | Koichi Hashimoto | 2004-04-27 |
| 6724094 | Glass and glass tube for encapsulating semiconductors | — | 2004-04-20 |