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. 24, 2014
Filed:
Oct. 17, 2002
Masahiro Yatake, Nagano, JP;
Hidehiko Komatsu, Nagano, JP;
Hitoshi Ohta, Nagano, JP;
Kazuhiko Hara, Nagano, JP;
Hiroko Hayashi, Nagano, JP;
Jun Ito, Nagano, JP;
Nagatoshi Kasahara, Nagano, JP;
Keiichi Noto, Nagano, JP;
Masahiro Yatake, Nagano, JP;
Hidehiko Komatsu, Nagano, JP;
Hitoshi Ohta, Nagano, JP;
Kazuhiko Hara, Nagano, JP;
Hiroko Hayashi, Nagano, JP;
Jun Ito, Nagano, JP;
Nagatoshi Kasahara, Nagano, JP;
Keiichi Noto, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An aqueous ink ensuring less blurring and high color formation on plain paper, satisfactory color formation and fixing property on special paper and excellent ejection stability is realized by using a microcapsule of a colorant encapsulated with a polymer and rendered dispersible in water and specifying the amount of the aromatic ring in the polymer to be from 20 to 70 wt % of the polymer.