Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882544 | Simple inspection device for analyzer for ionic activity measurment | Tadashi Uekusa, Takashi Koizumi | 1989-11-21 |
| 4832817 | Simple inspection device for analyzer for ionic activity measurement | Tadashi Uekusa, Takashi Koizumi | 1989-05-23 |
| 4797193 | Analyzer for ionic activity measurement | Tadashi Uekusa, Takashi Koizumi | 1989-01-10 |