Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11764546 | Semiconductor laser device | Yuki Kamata, Hiroyuki Tarumi, Koichi Oyama, Keizo Takemasa, Kenichi Nishi | 2023-09-19 |
| 10998696 | Vertical cavity surface emitting laser | Natsumi Kaneko, Takeshi Aoki | 2021-05-04 |
| 10847950 | Vertical cavity surface emitting laser, method for fabricating vertical cavity surface emitting laser | — | 2020-11-24 |
| 10819083 | Vertical cavity surface-emitting laser | Hiroyuki Yoshinaga, Rei Tanaka | 2020-10-27 |
| 9395487 | Wavelength monitor | Katsumi Uesaka | 2016-07-19 |
| 9366820 | Coherent mixer and 2×2 multi-mode interference coupler | Naoko Konishi | 2016-06-14 |
| 9279939 | Spot-size converter | — | 2016-03-08 |
| 9164237 | Coherent mixer | — | 2015-10-20 |
| 9122003 | Semiconductor optical device | — | 2015-09-01 |
| 9069194 | Polarization control device | — | 2015-06-30 |
| 8718412 | Dual polarization quadrature phase shift keying optical modulator | — | 2014-05-06 |
| 8617911 | Method for forming coating film on facet of semiconductor optical device | — | 2013-12-31 |
| 8477820 | Semiconductor laser device and method for producing the same | — | 2013-07-02 |
| 8389308 | Method for producing surface emitting semiconductor device | — | 2013-03-05 |
| 8218591 | Laser diode with ridge waveguide structure and method for manufacturing the same | Hideki Yagi | 2012-07-10 |
| 7953135 | Vertical cavity surface emitting laser diode (VCSEL) with enhanced emitting efficiency | — | 2011-05-31 |
| 7852896 | Vertical cavity surface emitting laser | Hideyuki Doi | 2010-12-14 |
| 7852895 | VCSEL with reduced light scattering within optical cavity | — | 2010-12-14 |
| 7813403 | Vertical cavity surface emitting laser diode and a method for producing the same | — | 2010-10-12 |
| 7809041 | Surface emitting semiconductor laser | — | 2010-10-05 |
| 7738526 | Surface emitting semiconductor laser | — | 2010-06-15 |
| 7668219 | Surface emitting semiconductor device | — | 2010-02-23 |
| 7569718 | Production process of fluorinated benzonitrile | Toru Sasaki, Kohei Morikawa | 2009-08-04 |
| 5017045 | Method and apparatus for controlling attitude of shield excavator | Yoshiharu Kiritani, Shigeyoshi Tagata, Koichi Umeno | 1991-05-21 |