Inventor
Ja Choon Koo
Inventor
Seoul, KR
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer10%
Y10TTechnical subjects covered by former us classification10%
H10NElectric solid-state devices not otherwise provided for8%
A61BDiagnosis5%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
F03GSpring, weight, inertia or like motors5%
C08JWorking-up3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C08LCompositions of macromolecular compounds3%
PatentTitleYear
9,805,626'Respiration mimic device'20179,434,801'Polymer and polymer actuator comprising the same'20169,007,072'Capacitor sensor capable of controlling sensitivity'20158,915,151'Active skin for conformable tactile interface'20148,641,970'Mobile robot and clinical test apparatus using the same'20148,593,616'Actuator, stage device, and exposure apparatus'20138,552,623'Polymer and polymer actuator comprising the same'20138,480,917'Solid electrolyte polymer, polymer actuator using cross-linked polyvinylidene fluoride-based polymer, and method of manufacturing the polymer actuator'20137,682,314'Blood pressure meter using viscoelasticity of cuff and mobile terminal having the same'20107,677,805'Fluid dynamic bearing and hard disk drive employing the same'20107,671,514'Electroactive solid-state actuator and method of manufacturing the same'20107,499,244'Disk holder for off-line servo-track writer'20097,474,501'Outer hub assembly and spindle motor including the same in hard disk drive and method for servo-track writing'20095,979,249'Actuator resonance tester for a disk drive'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2016Patents assigned to SAMSUNG ELECTRONICS CO LTD (9)· patent assignee history
1999Based in Santa Clara, CA, US· patent location history
2009–2017Based in Seoul, KR· patent location history
2010Based in Kyungki-do, KR· patent location history
2013–2015Patents assigned to KOO JA CHOON (3)· patent assignee history
2013–2014Patents assigned to KOO JA-CHOON (3)· patent assignee history
2013–2014Patents assigned to UNIV SUNGKYUNKWAN FOUND (3)· patent assignee history
2014–2015Patents assigned to CHOI HYOUK RYEOL (2)· patent assignee history
2014Based in Gyeonggi-do, KR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SAMSUNG ELECTRONICS CO LTD | 9 | 1999–2016 |
| KOO JA CHOONself | 3 | 2013–2015 |
| KOO JA-CHOONself | 3 | 2013–2014 |
| UNIV SUNGKYUNKWAN FOUND | 3 | 2013–2014 |
| CHOI HYOUK RYEOL | 2 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seoul, KR | 11 | 2009–2017 |
| Gyeonggi-do, KR | 1 | 2014 |
| Kyungki-do, KR | 1 | 2010 |
| Santa Clara, California, US | 1 | 1999 |