Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5854157 | Ceramic composite | Hae Jin Hwang, Mutsuo Sando, Toru Nagai, Koichi Niihara | 1998-12-29 |
| 5447894 | Sintered ceramic article formed mainly of alumina | Kiyoshi Hirao, Shuzo Kanzaki | 1995-09-05 |