Hyeon Woo Kim

4 Patents

• US123013732025

  Apparatus and Method for Using Messenger Service of Group Chat Room

  KAKAO Corp.

  0 cites
• US121809022024

  Control Method of Valve Opening and Closing for an Engine and a Valve Control Apparatus of the Engine

  KIA CORPORATION

  0 cites
• US119398902024

  Continuous Variable Valve Duration Apparatus and Control Method for the Same

  KIA CORPORATION

  0 cites
• US117958832023

  Apparatus and Method of Controlling an Engine

  KIA CORPORATION

  0 cites