Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6076476 | Method of and apparatus for preventing emission of dioxins in incineration facility | Minoru Sumitomo | 2000-06-20 |
| 4942972 | Pressure vessel | Eiichi Hiraoka, Toshio Akagi, Junji Onaka | 1990-07-24 |