Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5773828 | Gas analyzer | Shigeyuki Akiyama, Masahiko Fujiwara, Takuji Oida, Naohito Shimizu, Toshikazu Ohnishi | 1998-06-30 |
| 5693945 | Gas analyzer | Shigeyuki Akiyama, Masahiko Fujiwara, Fujio Koga, Naohito Shimizu, Toshihiko Uno | 1997-12-02 |
| 5013920 | Infrared analyzer with improved calibration | Ichiro Asano, Kennosuke Kojima | 1991-05-07 |
| 4673812 | Calibrating mechanism of an infrared analyzer | — | 1987-06-16 |