US 12,282,292 B2
Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
Atsushi Sugawara, Kanagawa (JP); Yoshimasa Fujihara, Kanagawa (JP); Kazutsuna Sasaki, Kanagawa (JP); and Takashi Inukai, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Jan. 13, 2022, as Appl. No. 17/575,608.
Claims priority of application No. 2021-156202 (JP), filed on Sep. 24, 2021.
Prior Publication US 2023/0098553 A1, Mar. 30, 2023
Int. Cl. G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/097 (2006.01); G03G 15/08 (2006.01)
CPC G03G 9/0819 (2013.01) [G03G 9/0827 (2013.01); G03G 9/08711 (2013.01); G03G 9/08755 (2013.01); G03G 9/08788 (2013.01); G03G 9/09708 (2013.01); G03G 15/0822 (2013.01)] 13 Claims
OG exemplary drawing
 
2. An electrostatic charge image developing toner comprising:
a toner particle containing a binder resin, a release agent, a divalent metal, and a trivalent metal,
wherein a ratio of a domain diameter of the release agent to a maximum diameter of the toner particle is 10% or greater and 30% or less, the trivalent metal is Al, and a content of the trivalent metal with respect to a mass of the toner particle is 0.5 mmol/kg or greater and 50 mmol/kg or less.