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Inventor

Joon-Su Ji

Inventor
Gyeonggi-do, KR

Overview

10→
Patents
2003–2021
Patent span
Physics
Primary field (CPC G)

Patents· 10 as inventor

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

G01Rprimary
G01RMeasuring electric variables32%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1032%
B24BMachines, devices, or processes for grinding or polishing9%
G11CStatic stores9%
LOC069%
B08BCleaning in general5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
D0929144Armchair2021D0929145Chair20219,696,402'Probe card inspection apparatus'20177,626,413'Parallel testing of semiconductor devices using a dividing voltage supply unit'20097,622,940'Semiconductor device having contact failure detector'20097,423,443'Method of performing parallel test on semiconductor devices by dividing voltage supply unit'20086,909,297'Probe card'20056,906,341'Probe needle test apparatus and method'20056,813,804'Apparatus and method for cleaning probe card contacts'20046,571,448'Apparatus for attaching sand papers on dummy wafers'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2017Patents assigned to SAMSUNG ELECTRONICS CO LTD (8)· patent assignee history
2003Based in Kyungki-do, KR· patent location history
2004–2005Based in Suwon-si, KR· patent location history
2008–2009Based in Gyeonggi-do, KR· patent location history
2017Based in Hwaseong-si, KR· patent location history
2021Patents assigned to FREESTYLE OUTDOOR LIVING CO LTD (2)· patent assignee history
2021Based in Ningbo, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAMSUNG ELECTRONICS CO LTD82003–2017
FREESTYLE OUTDOOR LIVING CO LTD22021
Locations
LocationPatentsSpan
Gyeonggi-do, KR32008–2009
Suwon-si, KR32004–2005
Ningbo, CN22021
Hwaseong-si, KR12017
Kyungki-do, KR12003