Ryohhei Sugiyama

8 Patents

• US125608792026

  Image Forming Apparatus

  RICOH COMPANY, Ltd.

  0 cites
• US124227662025

  Fixing Device and Image Forming Apparatus Incorporating Same

  RICOH COMPANY, Ltd.

  0 cites
• US123862932025

  Fixing Device and Image Forming Apparatus with a Controller to Switch Between a First Heating and a Second Heating

  RICOH COMPANY, Ltd.

  0 cites
• US123531502025

  Fixing Device and Image Forming Apparatus

  RICOH COMPANY, Ltd.

  0 cites
• US121971502025

  Fixing Device and Image Forming Apparatus Incorporating the Same

  RICOH COMPANY, Ltd.

  0 cites
• US121971552025

  Heating Device, Fixing Device, and Image Forming Apparatus with Heat Shield Including First Portion and Second Portion

  RICOH COMPANY, Ltd.

  0 cites
• US121241942024

  Heating Device, Fixing Device, and Image Forming Apparatus

  Ricoh Company, Ltd.

  0 cites
• US117037832023

  Fixing Device and Image Forming Apparatus

  RICOH COMPANY, Ltd.

  0 cites