Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215551 | Alumina-based ceramics materials, abrasive materials and method for the manufacture of the same | Tetsuo Hatanaka, Tadashi Hiraiwa, Minoru MATSUKURA, Shoichi Imai | 1993-06-01 |