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Inventor

Seok-il Yoon

Inventor
Daejeon, KR

Overview

11→
Patents
2005–2018
Patent span
Physics
Primary field (CPC G)

Patents· 11 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus26%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them26%
H04NPictorial communication, e.g. television22%
H01JElectric discharge tubes or discharge lamps9%
Y10TTechnical subjects covered by former us classification9%
H01LSemiconductor devices4%
H10KOrganic electric solid-state devices4%
PatentTitleYear
9,874,666Optical film including protrusions, display device including the same and method of manufacturing optical film20188,058,804'Display device having light blocking members'20117,745,996'Display panel film having a black layer and a reflective layer'20107,324,169'Projection optical system, projection television, and method of manufacturing lens included in projection optical system'20087,233,440'Image display screen having wide vertical and horizontal viewing angles and projection television including the same'20077,139,124'Wide viewing angle screen and projection television comprising the same'20066,995,811'Brightness improving apparatus for projection television'20066,992,837'Hybrid lens and projection optical system including the same'20066,926,412'Projection display apparatus with a curved screen'20056,890,634'Retroreflective article'20056,859,314'Rear projection screen and projector adopting the same'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2011Patents assigned to SAMSUNG ELECTRONICS CO LTD (9)· patent assignee history
2005Patents assigned to LG CHEMICAL LTD (1)· patent assignee history
2005–2011Based in Daejeon, KR· patent location history
2005Based in Daejon, KR· patent location history
2005Based in Taejeon, KR· patent location history
2006Based in Metropolitan, KR· patent location history
2011Patents assigned to JEON WOOK-JAE (1)· patent assignee history
2011Patents assigned to LEE DAE-HEE (1)· patent assignee history
2011Patents assigned to LIM SUNG-HWAN (1)· patent assignee history
2018Based in Yongin, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAMSUNG ELECTRONICS CO LTD92005–2011
JEON WOOK-JAE12011
LEE DAE-HEE12011
LG CHEMICAL LTD12005
LIM SUNG-HWAN12011
Locations
LocationPatentsSpan
Daejeon, KR72005–2011
Yongin, KR12018
Metropolitan, KR12006
Daejon, KR12005
Taejeon, KR12005