Lei-lung Tsai

9 Patents

• US123745112025

  Keycap

  Primax Electronics Ltd.

  0 cites
• US122664842025

  Force-sensitive Key Module and Force-sensitive Switch Structure Thereof

  Primax Electronics Ltd.

  0 cites
• US122116572025

  Keycap

  Primax Electronics Ltd.

  0 cites
• US121318762024

  Membrane Switch

  Primax Electronics Ltd.

  0 cites
• US118877922024

  Keyboard Device and Key Structure Thereof

  PRIMAX ELECTRONICS Ltd.

  0 cites
• US116248672023

  Keycap, Method of Manufacturing the Same and Key Structure

  PRIMAX ELECTRONICS Ltd.

  0 cites
• US116262592023

  Membrane Circuit Structure

  PRIMAX ELECTRONICS Ltd.

  0 cites
• US116107452023

  Key Structure

  PRIMAX ELECTRONICS Ltd.

  0 cites
• US115747802023

  Key Structure

  PRIMAX ELECTRONICS Ltd.

  0 cites