Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826435 | Denture base | Masayoshi Tatemoto | 1989-05-02 |
| 4810294 | Solubilizer for water-insoluble alginates, aqueous solution thereof and dissolving method using the aqueous solution | Hiromichi Sakuma, Jouji Saito | 1989-03-07 |
| 4810295 | Impression composition | Yoshihide Higashihata, Hiromichi Sakuma, Yoshito Tanaka, Jouji Saito, Minako Inomata +3 more | 1989-03-07 |