Masamichi Kamei

6 Patents

• US124383922025

  Wide-area Power Supply System

  LAND BUSINESS CO., Ltd.

  0 cites
• USD10732582025

  Jacket

  0 cites
• US122217822025

  Secondary Drainage Method at Time of Flooding

  LAND BUSINESS CO., Ltd.

  0 cites
• US120249182024

  Multiplex Water Cutoff Wall

  Land Business Co., Ltd.

  0 cites
• US117688792023

  Advice Presentation System

  LAND BUSINESS CO., Ltd.

  0 cites
• US116139012023

  Flood-resistant Building Equipped with Flood Barrier, and Renovation Method

  LAND BUSINESS CO., Ltd.

  0 cites