Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10864683 | Thermal caulking method, thermal caulking device, and caulked material | Hiroshi Ishikawa, Shigeto Akahori | 2020-12-15 |
| 10584712 | Impeller | Hiroshi Ishikawa, Shinzo Urushidani | 2020-03-10 |
| 10569454 | Method for manufacturing impeller | Hiroshi Ishikawa, Shigeto Akahori | 2020-02-25 |