Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5950937 | Alumina-zirconia sintered body, production thereof, and impact grinder using said alumina-zirconia sintered body | Akihito Iwai, Hiroshi Wada, Katsumi Matsumoto, Yoshihiko Imai, Hideki Nakamura +1 more | 1999-09-14 |
| 5877105 | Alumina-zirconia sintered body, production thereof, and impact grinder using said alumina-zirconia sintered body | Akihito Iwai, Hiroshi Wada, Katsumi Matsumoto, Yoshihiko Imai, Hideki Nakamura +1 more | 1999-03-02 |
| 5845856 | Pin mill type crusher | Hiroaki Tanaka, Toshio Watanabe, Yoshihiko Imai, Toshikatsu Chida, Hideki Nakamura +1 more | 1998-12-08 |