Kentarou Matsumoto

3 Patents

• US122226632025

  Developing Device Including Sensor Holder Including Insertion Portion, Process Cartridge, and Image Forming Apparatus

  RICOH COMPANY, Ltd.

  0 cites
• US117264182023

  Developer Container, Developing Device, Process Cartridge, and Image Forming Apparatus

  RICOH COMPANY, Ltd.

  0 cites
• US116401242023

  Developing Device and Image Forming Apparatus Incorporating Same

  RICOH COMPANY, Ltd.

  0 cites