LexDanaLexDanabeta
Inventor

Seung Wook Song

Inventor
Daegu, KR

Overview

4→
Patents
2011–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H01Lprimary
H01LSemiconductor devices38%
H10DInorganic electric semiconductor devices38%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments13%
G03GElectrography13%
PatentTitleYear
10,504,994Power semiconductor device and fabrication method thereof201910,096,700Power semiconductor device comprising trench structures20189,123,769'Power semiconductor device and fabrication method thereof'20157,998,650'Method for preparing oxytitanium phthalocyanine charge generating material and the new-type oxytitanium phthalocyanine charge generating material therefrom'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011Patents assigned to PHTALOS CO LTD (1)· patent assignee history
2011Based in Busan, KR· patent location history
2015–2019Patents assigned to MAGNACHIP SEMICONDUCTOR LTD (3)· patent assignee history
2015–2019Based in Daegu, KR· patent location history
2018Based in Cheongju-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MAGNACHIP SEMICONDUCTOR LTD32015–2019
PHTALOS CO LTD12011
Locations
LocationPatentsSpan
Daegu, KR22015–2019
Cheongju-si, KR12018
Busan, KR12011