| US 7,449,608 B2 | ||
| Naphthol derivative and charge control agent comprising the same | ||
| Ryuzo Ueno, Nishinomiya (Japan); Masaya Kitayama, Takarazuka (Japan); Kenji Minami, Sennan (Japan); Hiroyuki Wakamori, Hikami-gun (Japan); and Nobuhiro Yonetani, Nishinomiya (Japan) | ||
| Assigned to Ueno Fine Chemicals Industry, Ltd., Osaka-Fu (Japan) | ||
| Appl. No. 10/498,224 PCT Filed Dec. 10, 2002, PCT No. PCT/JP02/12907 § 371(c)(1), (2), (4) Date Feb. 03, 2005, PCT Pub. No. WO03/050078, PCT Pub. Date Jun. 19, 2003. |
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| Claims priority of application No. 2001-380057 (JP), filed on Dec. 13, 2001. | ||
| Prior Publication US 2005/0119487 A1, Jun. 02, 2005 | ||
| Int. Cl. C07C 39/14 (2006.01); G03G 9/00 (2006.01); G03G 15/00 (2006.01) | ||
| U.S. Cl. 568—735 [430/108.1; 430/74; 585/400] | 8 Claims |
1. A naphthol derivative represented by the following general formula (I):
 R1 is an optionally branched, optionally substituted C9 to C20 aliphatic hydrocarbon group which may have an unsaturated bond,
and
R2 is a methyl or acetyl group.
|