Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5228972 | Apparatus for measuring concentration of test substance in liquid | Tatsuhiko Osaka, Koichi Yamasaki, Toji Mukai, Sadaaki Nakaoka, Harumi Tanaka +1 more | 1993-07-20 |
| 4933066 | Apparatus for mounting a diffusion-limiting membrane for a sensor | Tatsuhiko Osaka, Toji Mukai, Koichi Yamasaki | 1990-06-12 |
| 4929330 | Diffusion-limiting membrane holding means for sensor | Tatsuhiko Osaka, Mitsunari Okamoto | 1990-05-29 |