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Inventor

Keisuke Udagawa

Inventor
Urayasu, JP

Overview

3→
Patents
2013–2016
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H01Hprimary
H01HElectric switches40%
H02HEmergency protective circuit arrangements40%
G01RMeasuring electric variables20%
PatentTitleYear
9,291,686'Method of estimating the residual magnetic flux of transformer and residual magnetic flux estimation device'20169,197,057'Magnetizing inrush current suppression apparatus'20158,564,159'Transformer inrush current suppression apparatus'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2016Patents assigned to TOSHIBA KK (3)· patent assignee history
2013–2016Patents assigned to KOSHIZUKA TADASHI (2)· patent assignee history
2013–2016Patents assigned to UDAGAWA KEISUKE (2)· patent assignee history
2013Patents assigned to MARUYAMA SHIRO (1)· patent assignee history
2013–2015Based in Urayasu, JP· patent location history
2016Patents assigned to MAEHARA HIROYUKI (1)· patent assignee history
2016Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA KK32013–2016
KOSHIZUKA TADASHI22013–2016
UDAGAWA KEISUKEself22013–2016
MAEHARA HIROYUKI12016
MARUYAMA SHIRO12013
Locations
LocationPatentsSpan
Urayasu, JP22013–2015
Chiba, JP12016