Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846685 | Vertical-cavity surface-emitting semiconductor laser | Kouta Tateno, Toshiaki Kagawa, Osamu Tadanaga, Chikara Amano, Takashi Kurokawa | 2005-01-25 |
| 6549553 | Vertical-cavity surface-emitting semiconductor laser | Kouta Tateno, Toshiaki Kagawa, Osamu Tadanaga, Chikara Amano, Takashi Kurokawa | 2003-04-15 |
| 5091756 | Superlattice structure | Kenichi Iga, Fumio Koyama | 1992-02-25 |