Inventor · disambiguated record
Teruo Akiyama
Also filed as: AKIYAMA TERUO
43 granted patents·768 citations·filing 1980–2016
98Inventor score
Top patents by PatentIndex Score
43 records- 0193US5209063AHydraulic circuit utilizing a compensator pressure selecting valueKOMATSU MFG CO LTD·Filed 1990·Granted May 11, 1993·55 cites·7 claims
- 0293US4813518ABrake release mechanismKOMATSU MFG CO LTD·Filed 1982·Granted Mar 21, 1989·36 cites·2 claims
- 0392US5481872AHydraulic circuit for operating plural actuators and its pressure compensating valve and maximum load pressure detectorKOMATSU MFG CO LTD·Filed 1992·Granted Jan 9, 1996·50 cites·23 claims
- 0491US9790966B2Hydraulic drive systemAKIYAMA TERUO·Filed 2012·Granted Oct 17, 2017·10 cites·7 claims
- 0587US6311488B1Cooling fan drive apparatusKOMATSU MFG CO LTD·Filed 1999·Granted Nov 6, 2001·46 cites·22 claims
- 0687US4600364AFluid operated pump displacement control systemKOMATSU MFG CO LTD·Filed 1984·Granted Jul 15, 1986·58 cites·3 claims
- 0786US10385545B2Control system, work machine, and control methodKOMATSU MFG CO LTD·Filed 2016·Granted Aug 20, 2019·4 cites·7 claims
- 0885US9022749B2Swing drive controlling system for construction machineAKIYAMA TERUO·Filed 2009·Granted May 5, 2015·13 cites·7 claims
- 0983US9683585B2Hydraulic drive systemAKIYAMA TERUO·Filed 2012·Granted Jun 20, 2017·9 cites·15 claims
- 1083US5535663AOperating valve assembly with pressure compensation valveKOMATSU MFG CO LTD·Filed 1993·Granted Jul 16, 1996·29 cites·3 claims
- 1181US5271227AHydraulic apparatus with pressure compensating valvesKOMATSU MFG CO LTD·Filed 1991·Granted Dec 21, 1993·31 cites·3 claims
- 1281US4495767AAnticavitation control system for a hydrostatic transmissionKOMATSU MFG CO LTD·Filed 1982·Granted Jan 29, 1985·34 cites·4 claims
- 1380US9127439B2Engine control deviceOOI TAKESHI·Filed 2011·Granted Sep 8, 2015·6 cites·8 claims
- 1480US5602938AMethod of generating dictionary for pattern recognition and pattern recognition method using the sameNIPPON TELEGRAPH & TELEPHONE·Filed 1994·Granted Feb 11, 1997·105 cites·20 claims
- 1577US4469308ALever hoistKITO KK·Filed 1983·Granted Sep 4, 1984·31 cites·8 claims
- 1675US10344781B2Control system, work machine, and control methodKOMATSU MFG CO LTD·Filed 2016·Granted Jul 9, 2019·2 cites·10 claims
- 1772US5259192AHydraulic circuit systemKOMATSU MFG CO LTD·Filed 1991·Granted Nov 9, 1993·22 cites·8 claims
- 1871US5279122AHydraulic circuit apparatus for supplying fluid under pressure into hydraulic cylinders for work implementKOMATSU MFG CO LTD·Filed 1993·Granted Jan 18, 1994·21 cites·8 claims
- 1971US4498847AControl system for variable displacement hydraulic pumpsKOMATSU MFG CO LTD·Filed 1983·Granted Feb 12, 1985·20 cites·6 claims
- 2070US9709076B2Hydraulic drive systemAKIYAMA TERUO·Filed 2012·Granted Jul 18, 2017·5 cites·8 claims
- 2170US4637781ATorque regulating system for fluid operated pump displacement control systemsKOMATSU MFG CO LTD·Filed 1985·Granted Jan 20, 1987·28 cites·2 claims
- 2267US5398507AHydraulic circuit systemKOMATSU MFG CO LTD·Filed 1991·Granted Mar 21, 1995·20 cites·4 claims
- 2365US10017917B2Drive device of construction machineKOMATSU MFG CO LTD·Filed 2015·Granted Jul 10, 2018·1 cites·8 claims
- 2465US5533334APressurized fluid supply systemKOMATSU MFG CO LTD·Filed 1993·Granted Jul 9, 1996·16 cites·12 claims
- 2565US5273069AOperation valve with pressure compensation valveKOMATSU MFG CO LTD·Filed 1991·Granted Dec 28, 1993·30 cites·2 claims
- 2663US9695842B2Hydraulic drive systemKOMATSU MFG CO LTD·Filed 2013·Granted Jul 4, 2017·3 cites·12 claims
- 2762US9810246B2Hydraulic drive systemAKIYAMA TERUO·Filed 2012·Granted Nov 7, 2017·3 cites·13 claims
- 2860US10604913B2Control system, work machine, and control methodKOMATSU MFG CO LTD·Filed 2016·Granted Mar 31, 2020·1 cites·8 claims
- 2959US9845814B2Hydraulic drive systemKOMATSU MFG CO LTD·Filed 2013·Granted Dec 19, 2017·1 cites·19 claims
- 3059US8701401B2Engine control deviceOOI TAKESHI·Filed 2011·Granted Apr 22, 2014·3 cites·4 claims
- 3159US8640451B2Engine control device, and its control methodAKIYAMA TERUO·Filed 2007·Granted Feb 4, 2014·4 cites·24 claims
- 3258US5622206AMultiple valve unit for pressurized fluid supply systemKOMATSU MFG CO LTD·Filed 1995·Granted Apr 22, 1997·17 cites·16 claims
- 3356US9328480B2Hydraulic excavatorAKIYAMA TERUO·Filed 2012·Granted May 3, 2016·2 cites·9 claims
- 3450US9002590B2Engine control device and engine control methodAKIYAMA TERUO·Filed 2009·Granted Apr 7, 2015·2 cites·6 claims
- 3548US5212950AHydraulic circuit with pilot pressure controlled bypassKOMATSU MFG CO LTD·Filed 1992·Granted May 25, 1993·10 cites·4 claims
- 3643US10407865B2Control system, work machine, and control methodKOMATSU MFG CO LTD·Filed 2016·Granted Sep 10, 2019·0 cites·5 claims
- 3740US5666808AOperating valve assembly with pressure compensation valveKOMATSU MFG CO LTD·Filed 1995·Granted Sep 16, 1997·11 cites·10 claims
- 3840US5409038AHydraulic circuit including pressure compensating valveKOMATSU MFG CO LTD·Filed 1992·Granted Apr 25, 1995·7 cites·6 claims
- 3940US4309385AApparatus for measuring volatile hydridesNIPPON OXYGEN CO LTD·Filed 1980·Granted Jan 5, 1982·7 cites·19 claims
- 4032US5158746AApparatus for quantifying oxygenNIPPON OXYGEN CO LTD·Filed 1991·Granted Oct 27, 1992·2 cites·2 claims
- 4132US5021352AMethod for quantifying oxygenNIPPON OXYGEN CO LTD·Filed 1988·Granted Jun 4, 1991·2 cites·3 claims
- 4231US5291821AHydraulic circuit for swivel working machineKOMATSU MFG CO LTD·Filed 1992·Granted Mar 8, 1994·8 cites·24 claims
- 4331US4447543AMethod for measuring volatile hydridesNIPPON OXYGEN CO LTD·Filed 1981·Granted May 8, 1984·3 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Teruo Akiyama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →