Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6716524 | Rare earth borate and making method | Kazuhiro Wataya | 2004-04-06 |
| 6677262 | Rare earth oxide, basic rare earth carbonate, making method, phosphor, and ceramic | Kazuhiro Wataya | 2004-01-13 |