Katsuhiko Tamaki

3 Patents

• US125677552026

  Battery Bank Unit, Remaining Charge Time Calculation Method, and Remaining Charge Time Calculation Program

  FDK CORPORATION

  0 cites
• US122614772025

  Backup Power Supply Device and Method for Controlling Backup Power Supply Device

  FDX CORPORATION

  0 cites
• US119967302024

  Backup Power Supply Device

  FDK CORPORATION

  0 cites