Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873793 | Numerically controlled machine tool | Hiroaki Asano, Toshio Tsujiuchi, Takao Yoneda, Nobuhiro Ishihara, Norio Ohta | 1989-10-17 |
| 4848038 | Method for grinding a non-circular workpiece | Hiroshi Nakano, Yasuji Sakakibara | 1989-07-18 |