US 12,147,191 B2
Toner and two-component developer
Tadanori Kano, Sakai (JP); Takao Yamada, Sakai (JP); and Hiroki Maeda, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Osaka (JP)
Filed by SHARP KABUSHIKI KAISHA, Osaka (JP)
Filed on Sep. 30, 2021, as Appl. No. 17/491,283.
Claims priority of application No. 2020-171247 (JP), filed on Oct. 9, 2020; and application No. 2021-149721 (JP), filed on Sep. 14, 2021.
Prior Publication US 2022/0113646 A1, Apr. 14, 2022
Int. Cl. G03G 9/097 (2006.01); G03G 9/08 (2006.01)
CPC G03G 9/09725 (2013.01) [G03G 9/0819 (2013.01); G03G 9/0825 (2013.01); G03G 9/09716 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A toner including an external additive adhering to a surface of a toner particle,
wherein the external additive comprises fine powder and silica, wherein the fine powder comprises a surface of a core hydrophobized with a silane compound, and wherein the core is derived by addition of silica to strontium titanate.