Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135893 | Carbonaceous ceramic composite for use in contact with molten nonferrous metal | Shoji Dohi, Akio Nakashiba, Kengo Hamada, Hiroshi Sano, Yoshitaka Hayashi +4 more | 1992-08-04 |
| 4699720 | Process for treating waste water by wet oxidations | Yoshiaki Harada, Akio Nakashiba, Hiroyuki Matuura, Teizou Okino, Hajime Fujitani +2 more | 1987-10-13 |