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Inventor

Masaki Egashira

Inventor
Niihari-gun, JP

Overview

5→
Patents
1990–2007
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

E02Fprimary
E02FDredging30%
F02DControlling combustion engines30%
F04BPositive-displacement machines for liquids20%
F15BSystems acting by means of fluids in general20%
PatentTitleYear
7,272,928'Hydraulic circuit of construction machinery'20077,076,947'Hydraulic circuit of construction machinery'20065,265,569'Prime mover rotational speed control system'19935,036,817'Engine remote control system'19914,955,344'Apparatus for controlling rotational speed of prime mover of construction machine'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2007Patents assigned to HITACHI CONSTRUCTION MACHINERY (5)· patent assignee history
1990Based in Ibaragi, JP· patent location history
1991–2007Based in Niihari-gun, JP· patent location history
1993Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI CONSTRUCTION MACHINERY51990–2007
Locations
LocationPatentsSpan
Niihari-gun, JP31991–2007
Ibaraki, JP11993
Ibaragi, JP11990