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:
Jan. 28, 2014
Filed:
Feb. 06, 2013
Applicants:
Shin Hasegawa, Shizuoka, JP;
Hiroyuki Fushimi, Shizuoka, JP;
Inventors:
Shin Hasegawa, Shizuoka, JP;
Hiroyuki Fushimi, Shizuoka, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The inkjet ink includes at least a carbon black, a surfactant, a polyether-modified silicone oil having a polyoxyalkylene group in a side chain thereof, an anionic self-emulsifying polyether-modified polyurethane resin having a polyoxyalkylene group in a main chain thereof, and water. The inkjet ink contains particles having a particle diameter of not less than 0.5 μm in an amount of from 500,000 to 2,000,000 pieces per 5.0 μl, and has a volume average particle diameter (D50) of from 80 nm to 120 nm and a 90% cumulative particle diameter (D90) of from 160 nm to 200 nm.