Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4627877 | Method and apparatus for continuously producing a cement clinker | Tadashi Ogawa, Kyoichi Shibuya | 1986-12-09 |
| 4295823 | Apparatus for continuously producing a cement clinker | Tadashi Ogawa, Kyoichi Shibuya | 1981-10-20 |