Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4437016 | Power absorbing device for low-temperature refrigerating machine | Katsumasa Araoka | 1984-03-13 |
| 4345926 | Expansion engine | Katsumasa Araoka | 1982-08-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4437016 | Power absorbing device for low-temperature refrigerating machine | Katsumasa Araoka | 1984-03-13 |
| 4345926 | Expansion engine | Katsumasa Araoka | 1982-08-24 |