Inventor

Tatsuo Wakahara

Inventor

Kawasaki, JP

Overview

1991–2007

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 39 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F16Hprimary

F16HGearing71%

B60WConjoint control of vehicle sub-units of different type or different function13%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles8%

F02DControlling combustion engines6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

PatentTitleYear

7,229,372'Slippage prevention apparatus of belt-drive continuously variable transmission for automotive vehicle'2007 7,192,383'Control apparatus and method for automotive vehicle in which a belt-type continuously variable transmission is equipped with a belt slip preventive feature'2007 7,169,070'Transmission controller of V-belt type continuously variable automatic transmission'2007 7,112,154'System and method for hydraulically controlling automatic transmission'2006 7,037,235'Speed change ratio control unit for continuously variable transmission'2006 6,916,269'System and method of controlling line pressure for V-belt type continuously variable transmission'2005 6,419,059'Lock-up control for device torque converter'2002 6,375,591'Fault determining device and method for hydraulically operated automatic transmission'2002 6,374,973'Lock-up control device for torque converter'2002 6,106,433'Control system of automotive automatic transmission'2000 6,102,831'System for controlling engaging and disengaging operations of releasable coupling device placed in automotive power train'2000 5,935,043'Lockup control apparatus of torque converter'1999 5,875,865'Hydraulic-pressure control system for four-wheel drive vehicle with hydraulic-pressure operated transfer clutch'1999 5,819,192'Transfer for motor vehicle'1998 5,782,718'Working fluid pressure control device for hydraulic control system of continuously variable transmission'1998 5,746,677'Vehicle transmission system'1998 5,651,752'Lock-up control system for automatic transmission'1997 5,584,370'Lock-up type automatic transmission system with hydraulic fluid cooling device'1996 5,518,469'Hydraulic circuit for lock-up device'1996 5,501,311'Fluid pressure control device for variable torque transfer of four wheel drive vehicle'1996 5,478,288'Automatic power transmission of automotive vehicle'1995 5,429,561'Shift control system with engagement pressure as a function of torque input and the type of shifts'1995 5,403,242'Automatic transmission with one-way clutch friction suppression system'1995 5,376,056'Shift control system in automatic transmission'1994 5,361,651'Shift control system for automatic transmission'1994 5,320,202'Hydraulic system for torque converter'1994 5,305,664'Hydraulic control device for an automatic transmission having a shift valve and a control valve coaxially aligned in a valve chamber'1994 5,247,857'Control arrangement for automatic automotive transmission'1993 5,201,250'Fuel cut-off inhibit for a power-off upshift'1993 5,188,570'Automatic transmission having hydraulic servo device for band brake'1993 5,150,634'Control arrangement for automatic automotive transmission'1992 5,146,891'System and method for controlling fuel supply to internal combustion engine according to operation of automatic transmision applicable to automotive vehicle'1992 5,145,045'Control system for lock-up clutch of automatic transmission'1992 5,115,695'Hydraulic control system for automatic transmission'1992 5,115,694'Line pressure control at cranking and subsequent warming-up operation of engine'1992 5,113,719'Engine load responsive line pressure control arrangement for automatic automotive transmission'1992 5,103,692'Automatic transmission and engine control system'1992 5,085,105'Downshift control for automatic transmission'1992 5,050,454'Engine/automatic transmission unified control device'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2007Patents assigned to NISSAN MOTOR (34)· patent assignee history

1991–2007Based in Kawasaki, JP· patent location history

1992–2007Based in Kanagawa, JP· patent location history

2005–2007Patents assigned to JATCO LTD (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NISSAN MOTOR	34	1991–2007
JATCO LTD	5	2005–2007

Locations

Location	Patents	Span
Kawasaki, JP	30	1991–2007
Kanagawa, JP	9	1992–2007