Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5050988 | Measuring device using optical beam | Tadashi Sugiyama | 1991-09-24 |
| 4912526 | Optical frequency synthesizer/sweeper | Hideto Iwaoka, Koji Akiyama | 1990-03-27 |
| 4893353 | Optical frequency synthesizer/sweeper | Hideto Iwaoka, Koji Akiyama | 1990-01-09 |
| 4856899 | Optical frequency analyzer using a local oscillator heterodyne detection of incident light | Hideto Iwaoka, Koji Akiyama | 1989-08-15 |
| 4833681 | Semiconductor laser wavelength stabilizer | Koji Akiyama, Hideto Iwaoka | 1989-05-23 |