Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6190611 | Hardness indicator | Kazuhiro Tachino, Yoshitami Tsubota, Sadatoshi Takechi, Junichi Nakajima, Masazumi Yamashita +2 more | 2001-02-20 |
| D403604 | Reagent cartridge for colorimeter | Yoshitami Tsubota, Sadatoshi Takechi, Takeshi Fukumura, Tomisada Kubota | 1999-01-05 |
| D403259 | Colorimeter | Yoshitami Tsubota, Sadatoshi Takechi, Takeshi Fukumura, Tomisada Kubota | 1998-12-29 |