Front face erasable microcapsule magnetophoretic writing magnet
OwnerTakashi Iwasaki, Takuya Yashuhara +2inventors
InventorsTakashi Iwasaki, Takuya Yashuhara, Kenji Nonaka, Sadatoshi Igaue
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Abstract
Disclosed herein is a front face erasable microcapsule magnetophoretic display sheet having a support and a solid dispersion layer provided on one surface of the support and composed of microcapsules having an average particle diameter of 50 to 650 μm, in which a liquid dispersion, a white pigment, additives and magnetic particles are encapsulated, and a binder. The magnetic particles include at least two kinds of magnetic particles different in particle diameter from each other. An erasing magnet for front face erasing and a writing magnet for front face erasable microcapsule magnetophoretic display sheet are also disclosed.
Claims9
1-6. (canceled)
A writing magnet for front face erasable microcapsule magnetophoretic display sheets, wherein the magnet is covered with a metal to control a magnetic field, the magnet comprising:
- a tip;
- a rear end;
- a coating around the tip;
- a coating around the base, wherein the tip is exposed, and the tip extends above the coating around the tip by between 0 and 1.0 mm.
8-36. (canceled)
Dependencies are inferred from the claim text.