Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5957189 | Apparatus and method for sequentially feeding quantities of sand into a mold space and subjecting the space to evacuation and then pressure increase after each feed | Nagato Uzaki, Hisashi Harada, Kazuo Sugimoto | 1999-09-28 |
| 5887639 | Method and apparatus for manufacturing gas-hardened molds | Nagato Uzaki, Hisashi Harada, Kazuo Sugimoto | 1999-03-30 |
| 5850867 | Method of making cores with molding sand | Nagato Uzaki, Hisashi Harada, Kazuo Sugimoto | 1998-12-22 |
| 5839498 | Method for connecting cores by charging connecting sand into them | Nagato Uzaki, Hisashi Harada, Kazuo Sugimoto | 1998-11-24 |
| 5829511 | Cores formed with connecting cavities for receiving connecting sand | Nagato Uzaki, Hisashi Harada, Kazuo Sugimoto | 1998-11-03 |