Inventor

Byunghak Ahn

Inventor

Seoul, KR

Overview

6→

Patents

2013–2019

Patent span

Electricity

Primary field (CPC H)

Patents· 6 as inventor

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

H05Bprimary

H05BElectric heating33%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications27%

G09GArrangements or circuits for control of indicating devices using static means to present variable information13%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%

G05FSystems for regulating electric or magnetic variables7%

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 systems7%

H04BTransmission7%

PatentTitleYear

10,289,134Cable compensation circuit2019 9,101,032'LED emitting device and driving method thereof'2015 8,816,607'LED emitting device and driving method thereof'2014 8,760,082'LED emitting device'2014 8,729,822'LED emitting device and driving method thereof'2014 8,519,642'LED light emitting device'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2015Patents assigned to FAIRCHILD KR SEMICONDUCTOR LTD (5)· patent assignee history

2013–2014Patents assigned to AHN BYUNGHAK (4)· patent assignee history

2013–2014Patents assigned to LEE EUNG-WOO (2)· patent assignee history

2013–2019Based in Seoul, KR· patent location history

2014Patents assigned to CHOI MOONHO (2)· patent assignee history

2014Patents assigned to CHUNG JINHWA (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FAIRCHILD KR SEMICONDUCTOR LTD	5	2013–2015
AHN BYUNGHAKself	4	2013–2014
CHOI MOONHO	2	2014
CHUNG JINHWA	2	2014
LEE EUNG-WOO	2	2013–2014

Locations

Location	Patents	Span
Seoul, KR	6	2013–2019