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Inventor

Seiichi Akiyama

Inventor
Tokyo, JP

Overview

4→
Patents
2004–2015
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

E02Fprimary
E02FDredging44%
F15BSystems acting by means of fluids in general33%
F04BPositive-displacement machines for liquids22%
PatentTitleYear
9,109,346'Hydraulic swing-controlling apparatus of work machine'20158,899,035'Hydraulic control apparatus for work machine'20146,810,663'Fluid pressure circuit control system'20046,672,055'Hydraulic pump control device'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to CATERPILLAR MITSUBISHI LTD (2)· patent assignee history
2004–2015Based in Tokyo, JP· patent location history
2014–2015Patents assigned to AKIYAMA SEIICHI (2)· patent assignee history
2014–2015Patents assigned to CATERPILLAR SARL (2)· patent assignee history
2014Patents assigned to DOI ATSUNOBU (1)· patent assignee history
2015Patents assigned to KANENAWA YUYA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AKIYAMA SEIICHIself22014–2015
CATERPILLAR MITSUBISHI LTD22004
CATERPILLAR SARL22014–2015
DOI ATSUNOBU12014
KANENAWA YUYA12015
Locations
LocationPatentsSpan
Tokyo, JP42004–2015