Haiou Jin

6 Patents

• US124392082025

  Full-frequency Band High Quality Planar Resonance Speaker with a Bar and Sound Tunnels

  SUZHOU LI YUE MUSICAL INSTRUMENTS CO., Ltd.

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• US124177532025

  Kind of Double-bars Violin Family Without Sound Post

  SUZHOU LI YUE MUSICAL INSTRUMENTS CO., Ltd.

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• US124019382025

  Full-frequency Band High Quality Electronic Products Speaker with a Bar and Sound Tunnels

  SUZHOU LI YUE MUSICAL INSTRUMENTS CO., Ltd.

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• US123634852025

  Full-frequency Band High Quality MEMS Microphone with a Bar and Sound Tunnels

  SUZHOU LI YUE MUSICAL INSTRUMENTS CO., Ltd.

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• US122832602025

  Grand Piano Soundboard with a Bar and Sound Tunnels

  SUZHOU LI YUE MUSICAL INSTRUMENTS CO., Ltd.

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• US122129462025

  Full-frequency Band High Quality Speaker with a Bar and Sound Tunnels

  SUZHOU LI YUE MUSICAL INSTRUMENTS CO., Ltd.

  0 cites