Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780255 | Sm-fe-N based alloy powder and process for producing the same | Yohsiyuki Kawano, Michiya Kume | 2004-08-24 |
| 6334908 | Sm-Fe-N alloy powder and process for the production thereof | Yohsiyuki Kawano, Michiya Kume | 2002-01-01 |
| 5859496 | Lamp containing long decay phosphor | Yoshinori Murazaki | 1999-01-12 |
| 5049779 | Phosphor composition used for fluorescent lamp and fluorescent lamp using the same | Yuji Itsuki | 1991-09-17 |
| 4423349 | Green fluorescence-emitting material and a fluorescent lamp provided therewith | Shigeharu Nakajima, Koichi Okada, Kaname Tsuchikura, Minoru Kashiwagi | 1983-12-27 |