Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347831 | Refrigeration system consisting of a plurality of refrigerating cycles | Shigeru Sakashita | 1994-09-20 |
| 5239835 | Refrigeration system consisting of a plurality of refrigerating cycles | Shigeru Sakashita | 1993-08-31 |