Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4732749 | Method of manufacturing longer fibers of potassium titanate | Akira Watanabe, Yoshimitsu Takeuchi, Megumu Shimomi | 1988-03-22 |
| 4497901 | Forsterite-carbon refractory | Yuzo Ohtsuki, Nobiru Komatsu, Akira Watanabe | 1985-02-05 |