Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882528 | Digital servo system | Masatoyo Sogabe, Kanemasa Okuda, Keiji Sakamoto | 1989-11-21 |
| 4864209 | Negative feedback control system | Shinji Seki | 1989-09-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882528 | Digital servo system | Masatoyo Sogabe, Kanemasa Okuda, Keiji Sakamoto | 1989-11-21 |
| 4864209 | Negative feedback control system | Shinji Seki | 1989-09-05 |