Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7635421 | Electrolytic apparatus for use in oxide electrowinning method | Kenji Koizumi, Nobuo Okamura, Tadahiro Washiya | 2009-12-22 |
| 5838843 | Multipurpose optical sensor | Koichi Miura, Takashi Hiyama | 1998-11-17 |