Inventor

Hak-cheol Yang

Inventor

Suwon-si, KR

Overview

15→

Patents

1998–2013

Patent span

Electricity

Primary field (CPC H)

Patents· 15 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps45%

G09GArrangements or circuits for control of indicating devices using static means to present variable information27%

G06FElectric digital data processing9%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%

H03KPulse technique5%

H04NPictorial communication, e.g. television5%

H05KPrinted circuits5%

PatentTitleYear

8,508,488'Display apparatus having touch screen function'2013 8,362,977'Contact device, plasma display including the same, and driving method thereof'2013 8,169,134'Field emission device'2012 8,049,681'Waveform generator and plasma display device using the same'2011 7,710,355'Plasma display panel'2010 7,619,589'Plasma display and driving method thereof'2009 7,612,738'Plasma display device, apparatus for driving the same, and method of driving the same'2009 7,379,034'Panel driving apparatus and a display panel with the same'2008 6,455,995'One-pin dynamic electron gun for a cathode ray tube'2002 6,339,285'Cathode ray tube with auxiliary electrodes having a plurality of slots'2002 5,965,973'Electron gun for color cathode ray tube'1999 5,905,332'Electron gun for color cathode ray tube'1999 5,818,163'Fluorescent screen pattern for beam index tube and beam index tube including the pattern'1998 5,744,911'Device for driving directly heated cathode of cathode ray tube'1998 5,739,629'Electron gun for color cathode ray tube providing two electron beam cross over points'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2002Patents assigned to SAMSUNG DISPLAY DEVICES CO LTD (6)· patent assignee history

1998–2013Based in Suwon-si, KR· patent location history

1998Based in Kyungki-do, KR· patent location history

2002–2013Patents assigned to SAMSUNG SDI CO LTD (8)· patent assignee history

2009–2010Based in Yongin-si, KR· patent location history

2012–2013Patents assigned to YANG HAK-CHEOL (3)· patent assignee history

2012Patents assigned to CHO HYUN-SEUNG (1)· patent assignee history

2013Patents assigned to CHO SUNG-CHUN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SAMSUNG SDI CO LTD	8	2002–2013
SAMSUNG DISPLAY DEVICES CO LTD	6	1998–2002
YANG HAK-CHEOLself	3	2012–2013
CHO HYUN-SEUNG	1	2012
CHO SUNG-CHUN	1	2013

Locations

Location	Patents	Span
Suwon-si, KR	12	1998–2013
Yongin-si, KR	2	2009–2010
Kyungki-do, KR	1	1998