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Inventor

Ja-Il Koo

Inventor
Seongnam-si, KR

Overview

9→
Patents
1996–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

G01Sprimary
G01SRadio direction-finding15%
H01FMagnets15%
H02JElectric power networks12%
G01RMeasuring electric variables8%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems8%
H04BTransmission8%
A61BDiagnosis4%
G06KGraphical data reading4%
G06VImage or video recognition or understanding4%
G08BSignalling systems, e.g. personal calling systems4%
PatentTitleYear
10,453,604Current transformer device201910,192,678Current transformer system with sensor CT and generator CT separately arranged in parallel in electric power line, and integrated system for controlling same in wireless communications network20199,824,282'Security camera system using power supply by electromagnetic induction scheme'20179,793,818'Unit current transformer device and magnetic induction power supplying device for linearly controlling output power by using the same'20179,673,694'Electromagnetic induction type power supply device'20175,846,203'Method and apparatus for noise suppression in a doppler ultrasound system.'19985,823,964'Ultrasound doppler wall filter'19985,676,148'Method and system for doppler ultrasound audio dealiasing'19975,492,125'Ultrasound signal processing apparatus'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Patents assigned to UNIV WASHINGTON (1)· patent assignee history
1996Based in Issapuah, WA, US· patent location history
1997–1998Patents assigned to SIEMENS MEDICAL SYSTEMS INC (3)· patent assignee history
1997Based in Issaquah, WA, US· patent location history
1998Based in Phoenix, AZ, US· patent location history
2017–2019Patents assigned to FERRARISPOWER CO LTD (5)· patent assignee history
2017–2019Patents assigned to TERA ENERGY SYSTEM SOLUTION CO LTD (2)· patent assignee history
2017–2019Based in Seongnam-si, KR· patent location history
2019Based in Bellevue, WA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FERRARISPOWER CO LTD52017–2019
SIEMENS MEDICAL SYSTEMS INC31997–1998
TERA ENERGY SYSTEM SOLUTION CO LTD22017–2019
UNIV WASHINGTON11996
Locations
LocationPatentsSpan
Seongnam-si, KR42017–2019
Phoenix, AZ, US21998
Bellevue, Washington, US12019
Issaquah, Washington, US11997
Issapuah, Washington, US11996