Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11075508 | Thermal-insulated multi-walled pipe for superconducting power transmission and laying method therefor | Yasuhide Ishiguro, Shigeto Sakashita | 2021-07-27 |
| 10971286 | Thermal-insulated multi-walled pipe for superconducting power transmission | Yasuhide Ishiguro, Shigeto Sakashita | 2021-04-06 |