Keitaro Sugihara

4 Patents

• US124438122025

  Color Display, Authentication Medium, and Method for Determining Authenticity of Color Display

  TOPPAN Inc.

  0 cites
• US119779382024

  Color Display, Authentication Medium, and Method of Determining Authenticity of Color Display

  TOPPAN Inc.

  0 cites
• US117746502023

  Display Body

  TOPPAN PRINTING CO., Ltd.

  0 cites
• US115559522023

  Display and Method of Producing Display

  TOPPAN PRINTING CO., Ltd.

  0 cites