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:
Feb. 11, 2014
Filed:
Oct. 01, 2012
Seiko Epson Corporation, Tokyo, JP;
Satoshi Gocho, Kitakatsushika-gun, JP;
Atsushi Kijima, Kitakatsushika-gun, JP;
Yoshihiro Koizumi, Shiojiri, JP;
Yoshihiro Nakamura, Matsumoto, JP;
Akihito Matsumoto, Chino, JP;
Takeshi Iwamuro, Matsumoto, JP;
Nobumasa Fukushima, Okaya, JP;
Masaru Takahashi, Matsumoto, JP;
Takakazu Fukano, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An ink cartridge has a label portion on a wall surface of one periphery of a case forming an ink accommodating unit. The label unit has a lamination structure in which a plurality of layers with different properties and states are laminated, and includes an optical functional layer that allows light (first wavelength of light) with a predetermined wavelength to pass and an optical reflective layer that reflects the first wavelength of light, and the optical reflective layer is a surface side of the case. When the optical reflective layer is heated from a thermal head of a heating unit directed to the label portion, the optical reflective layer irreversibly raises absorptivity of the first wavelength of light with respect to a received range.