Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4559193 | Method of sealing open ends of ceramic honeycomb structural body | Yutaka Ogawa, Shunichi Yamada | 1985-12-17 |
| 4489774 | Rotary cordierite heat regenerator highly gas-tight and method of producing the same | Yutaka Ogawa, Shunichi Yamada | 1984-12-25 |