Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6110023 | Sphere grinding apparatus | Masami Shinomoto, Hiroyuki Nojima, Katsuhisa Tonooka | 2000-08-29 |
| 5921851 | Sphere polisher | Katsuhisa Tonooka, Kunio Kawashima, Chuichi Sato, Masami Shinomoto, Hiroyuki Nojima | 1999-07-13 |
| 5462362 | Wear resisting slide member | Toshio Yuhta, Ikuya Nishimura, Daijiro Kano, Tsuyoshi Saitou, Mamoru Tanaka | 1995-10-31 |