Hiroaki Toyoshima

7 Patents

• US125386382026

  Organic Electroluminescent Element and Electronic Device

  IDEMITSU KOSAN CO., Ltd.

  0 cites
• US122565792025

  Phosphor, Method of Producing Phosphor, Light-emitting Element, Light-emitting Device, and Image Display Apparatus

  DENKA COMPANY LIMITED

  0 cites
• US120064592024

  Phosphor Powder and Light Emitting Device

  DENKA COMPANY LIMITED

  0 cites
• US119525202024

  Method for Manufacturing Phosphor Powder, Phosphor Powder, and Light Emitting Device

  DENKA COMPANY LIMITED

  0 cites
• US118568082023

  Organic Electroluminescent Element and Electronic Device Drivable at Low Voltage with Improved Lifetime

  IDEMITSU KOSAN CO., Ltd.

  0 cites
• US115750872023

  Organic Electroluminescence Device, Light Emitting Device, Organic Electroluminescence Display Device and Electronic Device

  IDEMITSU KOSAN CO., Ltd.

  0 cites
• US115522592023

  Organic Electroluminescent Element and Electronic Device

  IDEMITSU KOSAN CO., Ltd.

  0 cites