Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871396 | Granular composition and dentifrice containing the same | Satoshi Tsujita, Koji Maeda | 1989-10-03 |
| 4859696 | Precutaneous absorption accelerator and preparation containing same | Tetsuro Kamiya, Takeshi Inoue, Hidenori Yorozu, Kaoru Tsujii | 1989-08-22 |