Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6110023 | Sphere grinding apparatus | Hiroyuki Nojima, Katsuhisa Tonooka, Tomita Suzuki | 2000-08-29 |
| 5921851 | Sphere polisher | Tomita Suzuki, Katsuhisa Tonooka, Kunio Kawashima, Chuichi Sato, Hiroyuki Nojima | 1999-07-13 |
| 5651720 | Bore size correcting apparatus | Chuichi Sato | 1997-07-29 |