Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10143509 | Medical screw | — | 2018-12-04 |
| 7008391 | Tool for corrective treatment of ingrown toenail | — | 2006-03-07 |
| 6095995 | Ingrown nail correcting device | — | 2000-08-01 |
| 5942822 | Electric motor structure | Masato Iwata | 1999-08-24 |
| 5889345 | Waterproof electric motor structure | Masato Iwata, Hiroshi Hagiwara | 1999-03-30 |
| 5516054 | Armature coil winding method | Hiroshi Hagiwara, Masato Iwata | 1996-05-14 |
| 5059401 | Monocrystal growing apparatus | Masataka Watanabe | 1991-10-22 |