Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352352 | Carbonic acid gas sensor | Keiji Tsukada, Yasuhisa Shibata, Yoshio Watanabe | 1994-10-04 |
| 5344545 | Electrolytic sensor for measuring the content of gas in a fluid | Keiji Tsukada, Yasuhisa Shibata, Yoshio Watanabe | 1994-09-06 |
| 5250168 | Integrated ion sensor | Keiji Tsukada, Yasuhisa Shibata, Yoshio Watanabe | 1993-10-05 |
| 5132012 | Liquid chromatograph | Junkichi Miura, Andreas Manz, Yoshio Watanabe, Hiroyuki Miyagi, Keiji Tsukada | 1992-07-21 |
| 5102525 | Planar oxygen sensor | Keiji Tsukada, Yasuhisa Shibata, Hiroyuki Miyagi | 1992-04-07 |