Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6561806 | Dental magnetic attachment | Osamu Kujirai, Mitsuo Hata | 2003-05-13 |
| 5609881 | Bio-degradable/absorbable barrier membrane | Yoshito Ikada, Shokyu Gen, Takao Kubota | 1997-03-11 |
| 4834655 | Cutting tools | — | 1989-05-30 |
| 4820387 | Method and apparatus for making the inner crowns of composite-layered crowns for restoring crowns | Atsushi Yamashita | 1989-04-11 |
| 4690642 | Dental polishing strip | — | 1987-09-01 |
| 4664627 | Dental contact gauge | Kentaro Tomioka | 1987-05-12 |