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Inventor

Tsukasa Kawahara

Inventor
Kyoto, JP

Overview

5→
Patents
2006–2016
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information33%
H05BElectric heating33%
H02JElectric power networks11%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems11%
H03FAmplifiers11%
PatentTitleYear
9,237,627'Light-emitting element driving device'20168,878,445'Light-emitting element driving device'20148,159,140'Load driving apparatus'20127,119,802'Driving voltage controller'20066,998,825'DC-DC converter'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (2)· patent assignee history
2006Based in Nagaokakyo, JP· patent location history
2012–2016Patents assigned to PANASONIC CORP (3)· patent assignee history
2012–2014Patents assigned to ITOU DAISUKE (2)· patent assignee history
2012–2014Patents assigned to KATAOKA SHINICHIRO (2)· patent assignee history
2012–2014Patents assigned to KAWAHARA TSUKASA (2)· patent assignee history
2012–2016Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PANASONIC CORP32012–2016
ITOU DAISUKE22012–2014
KATAOKA SHINICHIRO22012–2014
KAWAHARA TSUKASAself22012–2014
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22006
Locations
LocationPatentsSpan
Kyoto, JP32012–2016
Nagaokakyo, JP22006