Inventor

OH INHWAN

KR26 patents

⚠️ This page may combine multiple inventors who share the name “OH INHWAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OH INHWAN

APPLE INC

Variable frequency and burst mode operation of primary resonant flyback converters

Asymmetric duty control of a half bridge power converter

Active burst ZVS boost PFC converter

Primary side control of primary resonant flyback converters

Hysteretic-mode pulse frequency modulated (HM-PFM) resonant AC to DC converter

Hysteretic-mode pulse frequency modulated (HM-PFM) resonant AC to DC converter

AC-DC resonant converter that provides high efficiency and high power density

Frequency doubling resonant converter

Power converter with output voltage control

AC-DC converter with boost front end having flat current and active blanking control

Low-profile power converter

Forward mode soft switching power converter

AC/DC converter with active capacitor bank

Interphase transformer based rectifier for wireless power transfer

Synchronous buck converter with current sensing

Over voltage protection for a communication line of a bus

Reducing output voltage undershoot in isolated power converters

Quasi-resonant power converter with reduced dynamic switching losses

STEK CO LTD

Window film for vehicles including graphene

Color wrapping film for vehicle

Exterior film of building for protecting glass

Protective film for windshield of vehicle

KOREA INST SCI & TECH

Selective colorimetric detection sensor and selective colorimetric detection method for detecting hexavalent chromium ions using size controlled label-free gold nanoparticles

Colorimetric detection sensor and colorimetric detection method for detecting cyanide anion by etching of gold nanorods

ZHANG WANFENG

Method and apparatus for LED lighting

MARVELL WORLD TRADE LTD

Method and apparatus for current control with LED driver