Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5079973 | Hydraulic speed change stage control system | Masahiro Ookubo | 1992-01-14 |
| 4996893 | Speed change control device in automatic transmission for automobile | Katsuma Nakamura | 1991-03-05 |
| 4815341 | Electronically controlled automatic transmission | Masahiro Ohkubo, Katsuma Nakamura | 1989-03-28 |