Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6043509 | Light-emitting diode having moisture-proof characteristics and high output power | Toshiya Toyoshima, Seiji Mizuniwa, Masahiro Noguchi | 2000-03-28 |
| 5888843 | Method for making light-emitting diode having improved moisture resistance characteristics | Toshiya Toyoshima, Seiji Mizuniwa, Masahiro Noguchi | 1999-03-30 |
| 5238491 | Hardening material for medical and dental use | Fumihito Sugihara, Takashi Ishii | 1993-08-24 |
| 5007979 | Method of fabricating GaAs single crystal | Seiji Mizuniwa, Akio Hattori, Seigi Aoyama, Konichi Nakamura | 1991-04-16 |