Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041658 | Method of producing exterior case for hot water unit, exterior case for hot water unit and hot water unit | Hiroshi Fujii | 2021-06-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041658 | Method of producing exterior case for hot water unit, exterior case for hot water unit and hot water unit | Hiroshi Fujii | 2021-06-22 |