Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560415 | Liquid composition for artificial production of verdigris | Katsuyasu Wada, Kazuhiko Namioka, Masuo Hitomi | 1985-12-24 |
| 4241039 | Method of removal of arsenic from a sulfuric acid solution | Tomomichi Kudo, Michihiro Maeshima, Tamotsu Kibayashi | 1980-12-23 |