Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873269 | Resinous compositions for denture base | — | 1989-10-10 |
| 4843110 | Light curing compositions for dental restoration | Takao Kubota, Tetsuro Sakuma | 1989-06-27 |
| 4820744 | Compositions for dental restoration | Takao Kubota, Tetsuro Sakuma | 1989-04-11 |
| 4804690 | Light curing compositions for dental restoration | Takao Kubota, Tetsuro Sakuma | 1989-02-14 |