| US 7,607,919 B2 | ||
| Magnetic substance display panel | ||
| Taro Tozuka, Hiratsuka (Japan) | ||
| Assigned to Kabushiki Kaisha Pilot Corporation, Tokyo (Japan) | ||
| Appl. No. 10/544,643 PCT Filed Feb. 05, 2004, PCT No. PCT/JP2004/001174 § 371(c)(1), (2), (4) Date Aug. 05, 2005, PCT Pub. No. WO2004/090625, PCT Pub. Date Oct. 21, 2004. |
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| Claims priority of application No. 2003-030157 (JP), filed on Feb. 06, 2003. | ||
| Prior Publication US 2006/0246413 A1, Nov. 02, 2006 | ||
| Int. Cl. B43L 1/00 (2006.01) | ||
| U.S. Cl. 434—409 | 2 Claims |
| 1. A magnetic display panel comprising:
a dispersion liquid and
a supporting member for holding said dispersion liquid,
wherein said dispersion liquid is a dispersion liquid, having a yield value, whose principal components are magnetic display
materials in fine particle form, water as a dispersion medium, and a thickener for an aqueous system, and
wherein said thickener for an aqueous system comprises one or more members selected from the group consisting of a cross-linking
type maleic anhydride copolymer and a polyvinyl alkyl amide.
|