Masafumi Utsugi

3 Patents

• US126080992026

  Active Pen Capable of Indicating Transmission Voltage and Position Detection System

  Wacom Co., Ltd.

  0 cites
• US125665232026

  Position Detection Circuit, Position Detection Method, and Position Detection System

  Wacom Co., Ltd.

  0 cites
• US120934872024

  Position Detection Circuit, Position Detection Method, and Position

  Wacom Co., Ltd.

  0 cites