Tomofumi Kawamura

5 Patents

• US124614682025

  Toner Cartridge Having Feeding Member and Pump for Discharging Toner

  Canon Kabushiki Kaisha

  0 cites
• US119829522024

  Toner Cartridge Having Feeding Member and Pump for Discharging Pump

  Canon Kabushiki Kaisha

  0 cites
• US119716822024

  Cartridge and Image Forming Apparatus

  Canon Kabushiki Kaisha

  0 cites
• US118416442023

  Toner Cartridge and Image Forming Apparatus Including a Screw to Convey Toner in the Cartridge, an Elastic Member to Loosen the Toner, and a Means to Discharge Toner Together with Air to the Outside of the Cartridge

  Canon Kabushiki Kaisha

  0 cites
• US116505382023

  Cartridge and Image Forming Apparatus

  Canon Kabushiki Kaisha

  0 cites