Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840246 | Power transmission control system for a four-wheel drive vehicle | Toru Yamakawa, Mitsuo Umezawa, Ryuzo Sakikiyama | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840246 | Power transmission control system for a four-wheel drive vehicle | Toru Yamakawa, Mitsuo Umezawa, Ryuzo Sakikiyama | 1989-06-20 |