Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5751420 | Spectropotometer with a field restrictor and its application to a colorimeter | Kazumi Yokota, Eiji Ikeda, Tomoki SASAYAMA | 1998-05-12 |
| 5706083 | Spectrophotometer and its application to a colorimeter | Kazumi Yokota, Eiji Ikeda | 1998-01-06 |
| 5592291 | Spectrophotometer | — | 1997-01-07 |
| 5422483 | Near infrared analyzer | Osamu Ando, Kan Nakamura, Yasuo Tsukuda | 1995-06-06 |