Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465273 | Method of making ZnSe based light emitting device with in layer using vibration and pressure | Koji Katayama, Akihiko Saegusa | 2002-10-15 |
| 6420731 | Light emitting diode and manufacturing method thereof | Koji Katayama, Akihiko Saegusa | 2002-07-16 |
| 6348140 | Gas sensor with a high combined resistance to lead wire resistance ratio | Noboru Matsui, Nobuhiro Hayakawa | 2002-02-19 |
| 6337536 | White color light emitting diode and neutral color light emitting diode | Koji Katayama, Toshihiko Takebe | 2002-01-08 |