| US 7,575,842 B2 | ||
| Toner and, developer, toner-containing container, process cartridge, image forming apparatus and image forming method | ||
| Masayuki Ishii, Numazu (Japan); Chiaki Tanaka, Tagata-gun (Japan); Naohiro Watanabe, Sunto-gun (Japan); Kei Naitoh, Sunto-gun (Japan); and Takuya Saito, Numazu (Japan) | ||
| Assigned to Ricoh Company, Ltd., Tokyo (Japan) | ||
| Filed on Nov. 13, 2007, as Appl. No. 11/939,075. | ||
| Application 11/939075 is a division of application No. 11/522936, granted, now 7,354,690, previously published as PCT/JP2005/004754, filed on Mar. 17, 2005. | ||
| Claims priority of application No. 2004-81757 (JP), filed on Mar. 19, 2004; application No. 2004-178556 (JP), filed on Jun. 16, 2004; and application No. 2005-072991 (JP), filed on Mar. 15, 2005. | ||
| Prior Publication US 2008/0233495 A1, Sep. 25, 2008 | ||
| Int. Cl. G03G 9/093 (2006.01) | ||
| U.S. Cl. 430—110.2 [430/137.11] | 17 Claims |
| 1. A toner for electrostatic processes comprising:
a toner base particle and
at least one coating layer uniformly applied to the toner base particle, wherein
the toner base particle comprises a resin fine particle,
the at least one uniformly applied coating layer is selected from the group consisting of a colorant coating layer, a resin
coating layer, a charge control agent-coating layer and a release agent-coating layer, and
the uniformly applied coating layer is obtained by deposition from a solution or dispersion comprising a supercritical or
sub-supercritical fluid.
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