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:
Aug. 12, 2014
Filed:
Sep. 05, 2012
Keita Katoh, Shizuoka, JP;
Ichiroh Fujii, Kanagawa, JP;
Masaki Kudo, Shizuoka, JP;
Tomohiro Nakagawa, Kanagawa, JP;
Akihiko Gotoh, Kanagawa, JP;
Koji Katsuragi, Miyagi, JP;
Keita Katoh, Shizuoka, JP;
Ichiroh Fujii, Kanagawa, JP;
Masaki Kudo, Shizuoka, JP;
Tomohiro Nakagawa, Kanagawa, JP;
Akihiko Gotoh, Kanagawa, JP;
Koji Katsuragi, Miyagi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An inkjet recording apparatus including an ink; and an ink discharging head configured to discharge the ink, wherein the ink discharging head is provided with a nozzle having a silicone-containing water-repellent film on a surface thereof on which the ink contacts, wherein the ink contains a colorant; water; and a water soluble organic solvent, wherein the colorant contains a carbon black partially coated with a resin, and wherein the ink meets the following expressions (1) and (2):1.0×10/100<1.0×10  (1)20.0<≦100.0  (2)