Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6238544 | Method of purification of salt solutions for electrolysis | Chisako Oohara, Takamichi Kishi, Takako Okuno | 2001-05-29 |
| 6132591 | Method for removal of sulfate groups and chlorate groups from brine | Masahiro Ohara, Takamichi Kishi | 2000-10-17 |
| 5632847 | Film removing method and film removing agent | Reiko Ohno | 1997-05-27 |
| 5578218 | Brine treatment method | Masahiro Ohara, Izumi Kawamura | 1996-11-26 |
| 5378317 | Method for removing organic film | Masaharu Kashiwase | 1995-01-03 |