Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330519 | Novel amorphous silica | Akira Takahashi | 1982-05-18 |
| 4230765 | Novel amorphous silica, and products thereof | Akira Takahashi | 1980-10-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330519 | Novel amorphous silica | Akira Takahashi | 1982-05-18 |
| 4230765 | Novel amorphous silica, and products thereof | Akira Takahashi | 1980-10-28 |