Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4650621 | Method of preparing heat exchange element | Yoshiharu Sago, Masaji Kurosawa | 1987-03-17 |
| 4608361 | Catalyst carriers and process for preparation of the same | Masaji Kurosawa | 1986-08-26 |
| 4595403 | Heat exchange element | Yoshiharu Sago, Masaji Kurosawa | 1986-06-17 |