Inventor

Eiji Egawa

Inventor

Tsuchiura, JP

Overview

8→

Patents

1998–2016

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 8 as inventor

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

E02Fprimary

E02FDredging50%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles17%

F16HGearing17%

B60WConjoint control of vehicle sub-units of different type or different function8%

B66FHoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load8%

PatentTitleYear

9,469,969'Device and method for calculating basic information for area limiting excavation control, and construction machinery'2016 8,585,156'Travel control device for work vehicle and work vehicle'2013 7,712,565'HST travel system for working machine'2010 6,101,437'Operation control device for three-joint excavator'2000 6,079,131'Operation control device for three-joint type excavator'2000 5,968,104'Front control system for construction machine'1999 5,957,989'Interference preventing system for construction machine'1999 5,752,333'Area limiting excavation control system for construction machines'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2013Patents assigned to HITACHI CONSTRUCTION MACHINERY (6)· patent assignee history

1998–2016Based in Tsuchiura, JP· patent location history

2000Based in Ibaraki-shi, JP· patent location history

2013Patents assigned to EGAWA EIJI (1)· patent assignee history

2013Patents assigned to NAKAMURA TSUYOSHI (1)· patent assignee history

2013Patents assigned to NAKAYAMA AKIRA (1)· patent assignee history

2016Patents assigned to HITACHI CONSTRUCTION MACH CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI CONSTRUCTION MACHINERY	6	1998–2013
EGAWA EIJIself	1	2013
HITACHI CONSTRUCTION MACH CO	1	2016
NAKAMURA TSUYOSHI	1	2013
NAKAYAMA AKIRA	1	2013

Locations

Location	Patents	Span
Tsuchiura, JP	7	1998–2016
Ibaraki-shi, JP	1	2000