Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465273 | Method of making ZnSe based light emitting device with in layer using vibration and pressure | Hideki Matsubara, Koji Katayama | 2002-10-15 |
| 6420731 | Light emitting diode and manufacturing method thereof | Koji Katayama, Hideki Matsubara | 2002-07-16 |