Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980856 | Synthetic chalcoalumite-type compounds and processes for producing the same | Akira Okada, Kanako Shimizu | 1999-11-09 |
| 5861133 | Synthetic chalcoalumite compounds and process for producing thereof | Akira Okada, Kanako Shimizu | 1999-01-19 |