Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7949212 | Optical waveguide element and method for polarization splitting | — | 2011-05-24 |
| 7778509 | Method for incidence of light into a photonic crystal optical waveguide and structure thereof | Jun Ushida | 2010-08-17 |
| 6165264 | Method for semiconductor crystal growth | Kikuo Makita | 2000-12-26 |
| 5612550 | Heterojunction type semiconductor device having ordered phase alloy layers for active and cladding layers | Tohru Suzuki | 1997-03-18 |
| 5309466 | Semiconductor laser | Yoshiyasu Ueno, Hiroaki Fujii | 1994-05-03 |
| 4974231 | Visible light semiconductor laser | — | 1990-11-27 |