Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5960142 | Peltier cooler and semiconductor laser module using Peltier cooler | — | 1999-09-28 |
| 5706302 | Temperature control type semiconductor laser device | — | 1998-01-06 |
| 5684632 | Variable wavelength optical filter | — | 1997-11-04 |
| 5603570 | Constant-temperature control using surroundings temperature of a device | — | 1997-02-18 |
| 5307197 | Optical circuit for a polarization diversity receiver | Takashi Tanabe | 1994-04-26 |
| 5007693 | Method for controlling polarizations of signal lights in an optical frequency division multiplex coherent communication system | Shuntaro Yamazaki, Takashi Ono | 1991-04-16 |
| 5004312 | Method for controlling a polarization of light | — | 1991-04-02 |
| 4898441 | Polarization controller | — | 1990-02-06 |
| 4752120 | Polarization controlling device comprising a beam splitter for controllably bifurcating an input polarized beam to two polarization controlling elements | — | 1988-06-21 |