Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6413791 | Epitaxial wafer and manufacturing method thereof as well as light-emitting diode with enhanced luminance | Yukiya Shibata, Seiji Mizuniwa | 2002-07-02 |
| 6043509 | Light-emitting diode having moisture-proof characteristics and high output power | Tooru Kurihara, Seiji Mizuniwa, Masahiro Noguchi | 2000-03-28 |
| 5965908 | Epitaxial wafer and manufacturing method thereof as well as light-emitting diode with enhanced luminance | Yukiya Shibata, Seiji Mizuniwa | 1999-10-12 |
| 5888843 | Method for making light-emitting diode having improved moisture resistance characteristics | Tooru Kurihara, Seiji Mizuniwa, Masahiro Noguchi | 1999-03-30 |
| 4483735 | Manufacturing process of semi-insulating gallium arsenide single crystal | Tomoki Inada, Seiji Mizuniwa, Masashi Fukumoto, Junkichi Nakagawa | 1984-11-20 |