Issued Patents 2004
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822988 | Laser apparatus in which GaN-based compound surface-emitting semiconductor element is excited with GaN-based compound semiconductor laser element | Yoji Okazaki | 2004-11-23 |
| 6816524 | InGaAsP or InGaAs semiconductor laser element in which near-edge portion of active layer is substituted with GaAs optical waveguide layer having greater bandgap than active layer | — | 2004-11-09 |
| 6797416 | GaN substrate formed under controlled growth condition over GaN layer having discretely formed pits | Mitsugu Wada, Toshiaki Kuniyasu | 2004-09-28 |
| 6795469 | Semiconductor laser element | — | 2004-09-21 |
| 6778573 | Fundamental-transverse-mode index-guided semiconductor laser device having upper optical waveguide layer thinner than lower optical waveguide layer | Toshiro Hayakawa | 2004-08-17 |
| 6774021 | Pattern forming method and pattern forming device | Mitsuru Sawano | 2004-08-10 |
| 6744797 | Semiconductor laser device | Toshiaki Kuniyasu | 2004-06-01 |
| 6738403 | Semiconductor laser element and semiconductor laser | Toshiaki Kuniyasu, Toshiro Hayakawa | 2004-05-18 |
| 6709513 | Substrate including wide low-defect region for use in semiconductor element | Toshiaki Kuniyasu, Mitsugu Wada, Yoshinori Hotta | 2004-03-23 |
| 6693941 | Semiconductor laser apparatus | Yoji Okazaki | 2004-02-17 |
| 6690698 | Semiconductor laser device including arrow structure precisely formed to suppress P-As interdiffusion and Al oxidation | — | 2004-02-10 |