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:
Jun. 19, 2012
Filed:
Apr. 30, 2010
Kenta Kubo, Kamakura, JP;
Takeshi Yamamoto, Yokohama, JP;
Manami Haraguchi, Yokohama, JP;
Tomoaki Miyazawa, Tokyo, JP;
Juun Horie, Tokyo, JP;
Kenta Kubo, Kamakura, JP;
Takeshi Yamamoto, Yokohama, JP;
Manami Haraguchi, Yokohama, JP;
Tomoaki Miyazawa, Tokyo, JP;
Juun Horie, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A duty ratio Du (%), denoted by (T/(TT))×100, is in the range of 60≦Du≦80; a magnetic carrier has a resistivity ρ which decreases in accordance with an increasing electric field strength, and a relative dielectric constant ∈ which increases in accordance with an increasing electric field strength; a product of a time constant ∈∈ρ(s) of electric charge decay in an electric field strength Edecided by a second peak voltage Vand a dark potential V, and an electric field strength Esatisfies a relation of 20≦∈∈ρ E(s·V/cm); and a time constant ∈∈ρ(s) and a relative dielectric constant ∈ in an electric field strength E, which is decided by a first peak voltage Vand a bright potential V, satisfy the following relations: ∈∈ρ(s)≦6.0×10, and 30≦∈.