Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4280845 | Cordierite ceramic | Shigeo Soejima | 1981-07-28 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4280845 | Cordierite ceramic | Shigeo Soejima | 1981-07-28 |