Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884014 | Position control method | — | 1989-11-28 |
| 4872115 | Apparatus for controlling continuously variable transmission | Mitsuru Takada | 1989-10-03 |
| 4867262 | Four wheel drive system for vehicle | Mitsuru Takada, Tokuyuki Takahashi | 1989-09-19 |
| 4841208 | Position control system including a quick response control | — | 1989-06-20 |
| 4840263 | Hydraulic control device for 4WD torque distribution clutch providing stabilized pressure characteristics | Nobuyuki Kato, Tokuyuki Takahashi | 1989-06-20 |
| 4835312 | Production process of N-substituted amide compounds | Toshimi Nakagawa, Atsuhiko Nitta | 1989-05-30 |
| 4828710 | Method for the extraction of water from macromolecular solutions | Toshimi Nakagawa, Atsuhiko Nitta, Tomio Tanaka, Hideo Kamio | 1989-05-09 |
| 4825368 | Device for controlling vehicle four wheel drive front/rear coupling device by learning effective front/rear vehicle wheels radius discrepancy, and method of operation thereof | Tokuyuki Takahashi | 1989-04-25 |