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. 07, 2007
Filed:
Sep. 24, 2004
Michiko Aoyama, Nagoya, JP;
Masashi Tsuda, Aichi-ken, JP;
Hiromitsu Sago, Tokai, JP;
Mayuko Umemura, Chiryu, JP;
Hideto Yamazaki, Nagoya, JP;
Shunichi Higashiyama, Yotsukaichi, JP;
Michiko Aoyama, Nagoya, JP;
Masashi Tsuda, Aichi-ken, JP;
Hiromitsu Sago, Tokai, JP;
Mayuko Umemura, Chiryu, JP;
Hideto Yamazaki, Nagoya, JP;
Shunichi Higashiyama, Yotsukaichi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A fluorescent water base ink for ink-jet recording contains a first fluorescent dye and a second fluorescent dye. The first fluorescent dye has a first ultraviolet absorption wavelength region in an absorption spectrum and a first fluorescence emission wavelength region in a fluorescence spectrum. The second fluorescent dye has a second ultraviolet absorption wavelength region which is different from the first ultraviolet absorption wavelength region in an absorption spectrum and a second fluorescence emission wavelength region in a fluorescence spectrum. The first fluorescent dye further has an absorption wavelength region which is different from the first ultraviolet absorption wavelength region and which overlaps at least a part of the second fluorescence emission wavelength region.