Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5851850 | Method for fabricating a gap type semiconductor substrate of red light emitting devices | Munehisa Yanagisawa, Susumu Higuchi, Yuuki Tamura, Akio Nakamura | 1998-12-22 |
| 5514881 | Gap light emitting device having a low carbon content in the substrate | Munehisa Yanagisawa, Susumu Higuchi, Yu Tamura, Akio Nakamura | 1996-05-07 |
| 5302839 | Light emitting diode having an improved GaP compound substrate for an epitaxial growth layer thereon | Tsuneyuki Kaise, Jun Ikeda | 1994-04-12 |
| 5300792 | Gap red light emitting diode | Munehisa Yanagisawa, Susumu Arisaka, Yuki Tamura | 1994-04-05 |
| 5254172 | Rotating furnace tube having a non-rotating slidable work holder for processing semiconductor substrates | Hitoshi Ikeda, Masato Yamada, Takao Takenaka | 1993-10-19 |
| 5234534 | Liquid-phase growth process of compound semiconductor | Munehisa Yanagisawa, Akio Nakamura, Susumu Higuchi | 1993-08-10 |