Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841916 | Evaporating apparatus with preheater | Hiroyuki Sumitomo | 1989-06-27 |
| 4827877 | Heat recovery system utilizing non-azeotropic medium | Hiroyuki Sumitomo | 1989-05-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841916 | Evaporating apparatus with preheater | Hiroyuki Sumitomo | 1989-06-27 |
| 4827877 | Heat recovery system utilizing non-azeotropic medium | Hiroyuki Sumitomo | 1989-05-09 |