Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7286741 | Silica optical waveguide and method of manufacturing the same | Naoki Hanashima | 2007-10-23 |
| 7236668 | Spot-size transformer, method of producing spot-size transformer and waveguide-embedded optical circuit using spot-size transformer | Naoki Hanashima | 2007-06-26 |
| 7221826 | Spot-size transformer, method of producing spot-size transformer and waveguide-embedded optical circuit using spot-size transformer | Naoki Hanashima | 2007-05-22 |
| 7106937 | Optical waveguide and method of fabricating the same | Naoki Hanashima | 2006-09-12 |
| 7027702 | Optical waveguide | Naoki Hanashima | 2006-04-11 |