Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6242117 | Ceramics, ceramic blank, manufacturing method thereof, sanitary earthenware and manufacturing method thereof | Naoki Koga, Motoshi Yasuda, Shozo Tateyama, Akio Matsumoto, Toshiya Nishikawa +2 more | 2001-06-05 |
| 6107223 | Method for preparing high strength and high thermal shock-resistant china for ceramic whiteware | Naoki Koga, Toshiya Nishikawa, Akio Matsumoto | 2000-08-22 |