Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6531072 | Phosphor | Kenichi Honda, Yoshitaka Sato, Hitoshi Toki | 2003-03-11 |
| 6303403 | Method for preparing gallium nitride phosphor | Yoshitaka Sato, Fumiaki Kataoka, Hitoshi Toki, Yuji Nomura | 2001-10-16 |