Inventor · disambiguated record
Ji Yeoul Ryoo
Also filed as: RYOO JI-YEOUL
12 granted patents·1 pending application·137 citations·filing 1999–2019
88Inventor score
Files withSAMSUNG ELECTRONICS CO LTD6APPLE INC4DMB TECHNOLOGY CO LTD1KOREA ADVANCED INST SCI & TECH1RYOO JI YEOUL1
Top patents by PatentIndex Score
13 records- 0191US6437360B1Vacuum field transistorKOREA ADVANCED INST SCI & TECH·Filed 1999·Granted Aug 20, 2002·90 cites·16 claims
- 0290US8022680B2Switching DC-DC converter with adaptive-minimum-on-time control and method of adaptively controlling minimum-on-time of a switching DC-DC converterSAMSUNG ELECTRONICS CO LTD·Filed 2008·Granted Sep 20, 2011·22 cites·22 claims
- 0373US8022574B2Maximum voltage source selectorSAMSUNG ELECTRONICS CO LTD·Filed 2008·Granted Sep 20, 2011·12 cites·7 claims
- 0463US10728969B2Split driver backlightsystems and methodsAPPLE INC·Filed 2019·Granted Jul 28, 2020·0 cites·24 claims
- 0557US10237936B2Split driver backlight systems and methodsAPPLE INC·Filed 2017·Granted Mar 19, 2019·0 cites·19 claims
- 0656US7313244B2Circuit and method for eliminating pop noise in digital audio amplifier using dual power supplyDMB TECHNOLOGY CO LTD·Filed 2003·Granted Dec 25, 2007·6 cites·8 claims
- 0755US10678092B2Display backlight headroom control systems and methodsAPPLE INC·Filed 2017·Granted Jun 9, 2020·0 cites·26 claims
- 0853US10383186B2Load transient response control systems and methods for electronic device displaysAPPLE INC·Filed 2017·Granted Aug 13, 2019·0 cites·21 claims
- 0952US8054604B2Device and method of reducing inrush currentSAMSUNG ELECTRONICS CO LTD·Filed 2008·Granted Nov 8, 2011·1 cites·19 claims
- 1051US8446138B2Stability compensation circuit and DC-DC converter including the sameRYOO JI YEOUL·Filed 2009·Granted May 21, 2013·4 cites·9 claims
- 1149US7948300B2Negative supply voltage generating circuit and semiconductor integrated circuit having the sameSAMSUNG ELECTRONICS CO LTD·Filed 2009·Granted May 24, 2011·2 cites·16 claims
- 1240US8054112B2Reset control method and apparatus in power management integrated circuitSAMSUNG ELECTRONICS CO LTD·Filed 2008·Granted Nov 8, 2011·0 cites·15 claims
- 1339US2009128113A1Power converter having auto conversion function for pulse skip mode and control methodSAMSUNG ELECTRONICS CO LTD·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →