Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5976412 | Fluorescent material | Shigeo Itoh, Hitoshi Toki, Yoshitaka Kagawa, Yoshitaka Sato | 1999-11-02 |
| 5858278 | Phosphor and method for producing same | Shigeo Itoh, Hitoshi Toki, Fumiaki Kataoka | 1999-01-12 |