Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472371 | Method and apparatus for truing and trued grinding tool | Hideo Yamakura, Toshio Tamura, Yuji Ochiai | 1995-12-05 |
| 5456736 | Lap and lapping liquor | Yoshiharu Waki, Masayasu Fujisawa, Kenya Ohashi, Yukihiro Isono | 1995-10-10 |