Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666973 | Method for fixing fluorine and phosphorus in waste water containing fluorophosphoric acid-derived compound to remove them | Hirohisa Kikuyama, Masayuki Miyashita | 2003-12-23 |
| 6514474 | Method of purifying lithium hexafluorosphate | Hirohisa Kikuyama, Masahide Waki, Hirofumi Yazaki | 2003-02-04 |