Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4597537 | Vertical mill | Takeshi Furukawa, Eiichi Onuma, Hiroshi Obana, Kyosuke Fukuyama, Toshiyuki Tanaka +2 more | 1986-07-01 |
| 4296864 | Air classifier | Takeshi Furukawa, Eiichi Onuma | 1981-10-27 |