Inventor

Teruo Akiyama

Inventor

Kokubunji, JP

Overview

43→

Patents

1982–2020

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 43 as inventor

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

E02Fprimary

E02FDredging34%

F15BSystems acting by means of fluids in general31%

Y10TTechnical subjects covered by former us classification10%

F02DControlling combustion engines4%

G01NInvestigating or analysing materials by determining their chemical or physical properties4%

F04BPositive-displacement machines for liquids3%

F16HGearing3%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles1%

B60TVehicle brake control systems or parts thereof1%

B60WConjoint control of vehicle sub-units of different type or different function1%

PatentTitleYear

10,604,913Control system, work machine, and control method2020 10,407,865Control system, work machine, and control method2019 10,385,545Control system, work machine, and control method2019 10,344,781Control system, work machine, and control method2019 10,017,917Drive device of construction machine2018 9,845,814Hydraulic drive system2017 9,810,246'Hydraulic drive system'2017 9,790,966'Hydraulic drive system'2017 9,709,076'Hydraulic drive system'2017 9,695,842'Hydraulic drive system'2017 9,683,585'Hydraulic drive system'2017 9,328,480'Hydraulic excavator'2016 9,127,439'Engine control device'2015 9,022,749'Swing drive controlling system for construction machine'2015 9,002,590'Engine control device and engine control method'2015 8,701,401'Engine control device'2014 8,640,451'Engine control device, and its control method'2014 6,311,488'Cooling fan drive apparatus'2001 5,666,808'Operating valve assembly with pressure compensation valve'1997 5,622,206'Multiple valve unit for pressurized fluid supply system'1997 5,602,938'Method of generating dictionary for pattern recognition and pattern recognition method using the same'1997 5,535,663'Operating valve assembly with pressure compensation valve'1996 5,533,334'Pressurized fluid supply system'1996 5,481,872'Hydraulic circuit for operating plural actuators and its pressure compensating valve and maximum load pressure detector'1996 5,409,038'Hydraulic circuit including pressure compensating valve'1995 5,398,507'Hydraulic circuit system'1995 5,291,821'Hydraulic circuit for swivel working machine'1994 5,279,122'Hydraulic circuit apparatus for supplying fluid under pressure into hydraulic cylinders for work implement'1994 5,273,069'Operation valve with pressure compensation valve'1993 5,271,227'Hydraulic apparatus with pressure compensating valves'1993 5,259,192'Hydraulic circuit system'1993 5,212,950'Hydraulic circuit with pilot pressure controlled bypass'1993 5,209,063'Hydraulic circuit utilizing a compensator pressure selecting value'1993 5,158,746'Apparatus for quantifying oxygen'1992 5,021,352'Method for quantifying oxygen'1991 4,813,518'Brake release mechanism'1989 4,637,781'Torque regulating system for fluid operated pump displacement control systems'1987 4,600,364'Fluid operated pump displacement control system'1986 4,498,847'Control system for variable displacement hydraulic pumps'1985 4,495,767'Anticavitation control system for a hydrostatic transmission'1985 4,469,308'Lever hoist'1984 4,447,543'Method for measuring volatile hydrides'1984 4,309,385'Apparatus for measuring volatile hydrides'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1992Patents assigned to NIPPON OXYGEN CO LTD (4)· patent assignee history

1982–2015Based in Tokyo, JP· patent location history

1985–2020Patents assigned to KOMATSU MFG CO LTD (37)· patent assignee history

1985–1997Based in Yokohama, JP· patent location history

1993–1997Based in Kanagawa, JP· patent location history

1993–1997Based in Kawasaki, JP· patent location history

2014–2017Patents assigned to AKIYAMA TERUO (10)· patent assignee history

2014–2015Patents assigned to ASADA HISASHI (4)· patent assignee history

2015–2020Based in Kokubunji, JP· patent location history

2016–2017Patents assigned to IIDA NOBORU (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOMATSU MFG CO LTD	37	1985–2020
AKIYAMA TERUOself	10	2014–2017
IIDA NOBORU	5	2016–2017
ASADA HISASHI	4	2014–2015
NIPPON OXYGEN CO LTD	4	1982–1992

Locations

Location	Patents	Span
Kokubunji, JP	13	2015–2020
Tokyo, JP	6	1982–2015
Kanagawa, JP	6	1993–1997
Kawasaki, JP	6	1993–1997
Yokohama, JP	6	1985–1997