Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7326052 | Dental shade guide having tag with mark indication part | Yasuhiro Odanaka, Mizuki Nakayama, Daiki Machida | 2008-02-05 |
| 6221931 | Dental restorative composition | Makoto Katsu, Takayuki Ueno, Norikazu Nakagaki, Tomohiro Kumagai | 2001-04-24 |
| 5739231 | Metal surface treatment agent | Yohji Imai, Yosuke Taira | 1998-04-14 |
| 5456602 | Dental bonding | — | 1995-10-10 |
| 5364890 | Dental adhesive composition | Junichi Okada | 1994-11-15 |
| 5356951 | Composition for dental restorative material | John A. Yearn | 1994-10-18 |
| 5290172 | Method for preparing a tooth surface for bonding | Yohji Imai | 1994-03-01 |
| 5288341 | Agent and method for treating the surfaces of metals | Katsunori Kojima, Yohji Imai | 1994-02-22 |
| 5043361 | Compositions for dental restoration | Takao Kubota, Ryoji Nakazato | 1991-08-27 |
| 4843110 | Light curing compositions for dental restoration | Takao Kubota, Ryoji Nakazato | 1989-06-27 |
| 4820744 | Compositions for dental restoration | Takao Kubota, Ryoji Nakazato | 1989-04-11 |
| 4804690 | Light curing compositions for dental restoration | Takao Kubota, Ryoji Nakazato | 1989-02-14 |
| 4771084 | Light curing compositions for dental restoration | Takao Kubota, Ryoji Nakazato | 1988-09-13 |