Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5764832 | Integrated semiconductor optical devices and method of manufacture employing substrate having alignment groove | — | 1998-06-09 |
| 5757999 | Optical device | Masami Goto, Masumi Norizuki | 1998-05-26 |
| 5671315 | Optical parts fixing apparatus and method of manufacturing the same | Tsugio Kumai, Seimi Sasaki, Kazunori Miura | 1997-09-23 |
| 5644667 | Integrated semiconductor optical devices and method of manufacture employing substrate having alignment groove | — | 1997-07-01 |
| 5611006 | Hybrid type integrated optical device having double-layered substrate | — | 1997-03-11 |
| 5481629 | Hybrid optical IC with optical axes at different levels | — | 1996-01-02 |
| 5388106 | Tunable optical source for producing a coherent optical beam with a wide range of wavelength tuning | — | 1995-02-07 |
| 5255276 | Driver circuit of a tunable laser diode | Shouichi Ogita, Yuji Kotaki | 1993-10-19 |
| 5200968 | Laser amplifier for amplifying optical waves without saturation | Hirohide Kurakake | 1993-04-06 |
| 5126875 | Semiconductor optical device having a variable refractive index profile | — | 1992-06-30 |