The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2013
Filed:
Aug. 04, 2009
Ikue Kawashima, Kanagawa, JP;
Masahiro Masuzawa, Chiba, JP;
Masahiro Yanagisawa, Kanagawa, JP;
Yoshihisa Naijo, Kanagawa, JP;
Ikue Kawashima, Kanagawa, JP;
Masahiro Masuzawa, Chiba, JP;
Masahiro Yanagisawa, Kanagawa, JP;
Yoshihisa Naijo, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrophoretic liquid is disclosed that includes first particles that have the property of scattering light over an entire visible range and are positively or negatively charged; second particles that have the property of absorbing light of a specific wavelength range in the visible range and scattering light of ranges other than the specific wavelength range and are charged to a polarity opposite to that of the first particles; and a dispersion medium that has the property of allowing the light of the specific wavelength range absorbed by the second particles to pass through and absorbing the light of the ranges other than the specific wavelength range. In the electrophoretic liquid, the first particles and the second particles are dispersed in the dispersion medium.