Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995724 | Optical spectrum analyzer with high performance measurement function | Takao Tanimoto | 1991-02-26 |
| 4969740 | Spectrometer | — | 1990-11-13 |
| 4918491 | Emission spectral width measuring apparatus for light source | — | 1990-04-17 |