Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11161310 | Heat-caulking device | Hiroshi Ishikawa, Yuichi Tajiri, Shigeto Akahori, Naohiro Ohtsu, Satoshi Shiozaki +1 more | 2021-11-02 |
| 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 |
| 10369749 | Thermal caulking device | Hiroshi Ishikawa, Yuichi Tajiri, Shigeto Akahori, Naohiro Ohtsu, Satoshi Shiozaki | 2019-08-06 |
| 9714664 | Method for manufacturing impeller | Hiroshi Ishikawa, Yasuhisa Saito | 2017-07-25 |