Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884211 | Numerical control unit file protection system | Hajimu Kishi, Kunio Tanaka, Masashi Yukutomo | 1989-11-28 |
| 4878172 | Four-axis lathe NC program creation method | — | 1989-10-31 |
| 4855898 | NC data creation method | Hideaki Kawamura, Takahiko Mineshige | 1989-08-08 |
| 4853867 | Simultaneous four-axis lathe machining time bar-graph display method | — | 1989-08-01 |
| 4821201 | Method of revising NC program for four-axis lathes | Hideaki Kawamura, Takao Sasaki | 1989-04-11 |