Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810793 | Composition for thermally stablizing o-pyridylphosphates or thiophosphates by incorporating various proportions of certain phthalate esters thereto | Jiro Kozuma, Hirohiko Hamaguchi, Tetsuya Shibahara | 1989-03-07 |