LexDanaLexDanabeta
Inventor

Yasufumi Okumura

Inventor
Kobe, JP

Overview

11→
Patents
2006–2019
Patent span
Performing operations
Primary field (CPC B)

Patents· 11 as inventor

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

B61Fprimary
B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles61%
F16FSprings17%
B61CLocomotives6%
B61GCouplings6%
B61KAuxiliary equipment specially adapted for railways, not otherwise provided for6%
G01GWeighing6%
PatentTitleYear
10,422,685Load measuring device for railcar bogie201910,399,579Axle box suspension of railcar bogie201910,086,850Air spring201810,053,119Plate spring cover and railcar bogie including plate spring cover20189,802,627'Railcar bogie'20179,592,840'Railcar axle box suspension'20179,573,604'Railcar bogie'20179,545,933'Air spring and railcar'20179,358,989'Railcar bogie'20168,297,199'Railcar primary suspension'20127,004,078'Truck for railroad car'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2019Patents assigned to KAWASAKI HEAVY IND LTD (11)· patent assignee history
2006Based in Hyogo, JP· patent location history
2012–2016Patents assigned to NISHIMURA TAKEHIRO (2)· patent assignee history
2012–2016Patents assigned to OKUMURA YASUFUMI (2)· patent assignee history
2012–2019Based in Kobe, JP· patent location history
2016Patents assigned to KUSUNOKI TAKEYOSHI (1)· patent assignee history
2016Patents assigned to NAKAO SHUNICHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAWASAKI HEAVY IND LTD112006–2019
NISHIMURA TAKEHIRO22012–2016
OKUMURA YASUFUMIself22012–2016
KUSUNOKI TAKEYOSHI12016
NAKAO SHUNICHI12016
Locations
LocationPatentsSpan
Kobe, JP102012–2019
Hyogo, JP12006