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:
Jul. 28, 1998
Filed:
Sep. 05, 1996
Applicant:
Inventors:
Masaya Fujioka, Nagoya, JP;
Takeo Kitahara, Nagoya, JP;
Masahito Kato, Nagoya, JP;
Hideto Yamazaki, Nagoya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 3127 ; 106 3157 ;
Abstract
A water-based black recording ink comprises an aqueous medium and a colorant dissolved or dispersed therein, where the colorant comprises a first colorant, having a transmission color having L* of 4 or below and C*ab of 25 or below in the L*a*b* color system, and a second colorant, and a closed angle between the hue angle of the first colorant and that of the second colorant on the a*-b* plane in the L*a*b* color system is 90.degree. or greater.