Inventor

Ryoichi Maruyama

Inventor

Komatsu, JP

Overview

1985–2001

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 23 as inventor

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

F16Hprimary

F16HGearing51%

B62DMotor vehicles20%

B60WConjoint control of vehicle sub-units of different type or different function15%

F16DCouplings for transmitting rotation5%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles2%

B60LPropulsion of electrically-propelled vehicles2%

B60TVehicle brake control systems or parts thereof2%

Y02TClimate change mitigation technologies related to transportation2%

PatentTitleYear

6,246,944'Apparatus for controlling brake of vehicle'2001 RE036151'Turning control system for use in a track-laying vehicle'1999 5,684,694'System for controlling a hydrostatic-mechanical transmission when an oil pressure exceeds a relief pressure'1997 5,671,137'Response control system for hydrostatic-mechanical transmissions'1997 5,622,050'System for controlling a hydrostatic-mechanical transmission at the time of vehicle acceleration or deceleration'1997 5,611,405'Turning speed control system for use in a track-laying vehicle'1997 5,540,051'Control mechanism for hydrostatic-mechanical power transmission system'1996 5,535,840'Steering system for use in a track-laying vehicle'1996 5,531,304'Creep preventing control system for hydrostatic-mechanical transmissions'1996 5,529,546'Forward/reverse drive and stop control system for hydrostatic -mechanical transmissions'1996 5,524,436'Overrun protecting control system for hydrostatic-mechanical transmissions'1996 5,522,775'Speed change gear control system for hydrostatic-mechanical transmissions'1996 5,477,454'Turning system for use in a track-laying vehicle'1995 5,477,455'Turning control system for use in a track-laying vehicle'1995 5,473,541'Steering control system for use in a track-laying vehicle'1995 5,466,197'Mechanical-hydraulic transmission'1995 5,406,793'Transmission and control mechanism for hydrostatic-mechanical power transmission system'1995 5,113,723'Clutch changeover circuit for non-stage transmission'1992 5,069,087'Clutch changeover circuit for non-stage transmission'1991 4,663,987'Speed-change/steering system for crawler type vehicles'1987 4,519,274'Automatic speed range change-over system for a hydro-mechanical transmission'1985 4,519,275'Turning control system for a hydro-mechanical transmission'1985 4,497,223'Engine speed control system for a hydro-mechanical transmission'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2001Patents assigned to KOMATSU MFG CO LTD (23)· patent assignee history

1985–2001Based in Yokohama, JP· patent location history

1991–1992Based in Hirakata, JP· patent location history

1995–1999Based in Komatsu, JP· patent location history

1995Based in Ishikawa, JP· patent location history

1996–1997Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOMATSU MFG CO LTD	23	1985–2001

Locations

Location	Patents	Span
Komatsu, JP	8	1995–1999
Kanagawa, JP	7	1996–1997
Yokohama, JP	5	1985–2001
Hirakata, JP	2	1991–1992
Ishikawa, JP	1	1995