Inventor

WAKAHARA TATSUO

JP39 patents

⚠️ This page may combine multiple inventors who share the name “WAKAHARA TATSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WAKAHARA TATSUO

NISSAN MOTOR

Hydraulic-pressure control system for four-wheel drive vehicle with hydraulic-pressure operated transfer clutch

Lock-up control system for automatic transmission

Lockup control apparatus of torque converter

Control apparatus and method for automotive vehicle in which a belt-type continuously variable transmission is equipped with a belt slip preventive feature

Lock-up control for device torque converter

Fault determining device and method for hydraulically operated automatic transmission

Line pressure control at cranking and subsequent warming-up operation of engine

Automatic transmission and engine control system

System for controlling engaging and disengaging operations of releasable coupling device placed in automotive power train

Downshift control for automatic transmission

System and method for controlling fuel supply to internal combustion engine according to operation of automatic transmision applicable to automotive vehicle

Transfer for motor vehicle

Working fluid pressure control device for hydraulic control system of continuously variable transmission

Fluid pressure control device for variable torque transfer of four wheel drive vehicle

Shift control system with engagement pressure as a function of torque input and the type of shifts

Shift control system in automatic transmission

Shift control system for automatic transmission

Hydraulic system for torque converter

Control arrangement for automatic automotive transmission

Control system for lock-up clutch of automatic transmission

Engine load responsive line pressure control arrangement for automatic automotive transmission

Engine/automatic transmission unified control device

Lock-up control device for torque converter

Vehicle transmission system

Automatic power transmission of automotive vehicle

Fuel cut-off inhibit for a power-off upshift

Lock-up type automatic transmission system with hydraulic fluid cooling device

Hydraulic circuit for lock-up device

Hydraulic control device for an automatic transmission having a shift valve and a control valve coaxially aligned in a valve chamber

Automatic transmission having hydraulic servo device for band brake

Hydraulic control system for automatic transmission

Automatic transmission with one-way clutch friction suppression system

Control arrangement for automatic automotive transmission

Control system of automotive automatic transmission

JATCO LTD

System and method for hydraulically controlling automatic transmission

Slippage prevention apparatus of belt-drive continuously variable transmission for automotive vehicle

Transmission controller of V-belt type continuously variable automatic transmission

System and method of controlling line pressure for V-belt type continuously variable transmission

Speed change ratio control unit for continuously variable transmission