Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798177 | System for controlling rotational speed of hydraulically driven cooling fan of internal combustion engine, responsive to engine coolant and also fan propellant temperature | Seiji Oomura, Masao Inagaki, Tooru Hamamoto | 1989-01-17 |
| 4794883 | Dual reservoir tank for propellant hydraulic fluid for internal combustion engine hydraulically driven cooling fan and for power steering actuating fluid | Masao Inagaki, Seiji Oomura, Tooru Hamamoto | 1989-01-03 |