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US 2013/0157183 A1Published application
Developer for electrophotography, image forming apparatus and process cartridge
AssigneeRicoh Company, Ltd.
InventorsHideyuki Santo, Masahide Yamada, Kazumi Suzuki, Shinya Nakayama, Atsushi Yamamoto, Tatsuya Morita, Shingo Sakashita, Yukiko Nakajima, Keiji Makabe, Daiki Yamashita
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