Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4469168 | Fin assembly for heat exchangers | Masaaki Itoh, Akira Tomita, Masakatsu Hayashi, Takeo Tanaka | 1984-09-04 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4469168 | Fin assembly for heat exchangers | Masaaki Itoh, Akira Tomita, Masakatsu Hayashi, Takeo Tanaka | 1984-09-04 |