Coating implements with material supply – Including ball – roller or endless-belt tool – Ball
Reexamination Certificate
2008-11-14
2009-10-13
Walczak, David J (Department: 3751)
Coating implements with material supply
Including ball, roller or endless-belt tool
Ball
C401S209000
Reexamination Certificate
active
07600937
ABSTRACT:
An aqueous gel ballpoint pen1having an ink-storage tube storing an aqueous gel ink containing a pigment as a coloring agent, and a ballpoint pen tip having a ball rotatably held at its leading end and also having an ink flow pore which is formed so that the aqueous gel ink flows from the ink-storage tube to the ball, wherein an ink flow pore diameter r (unit: mm) in the ballpoint pen tip and a storage modulus G′ (unit: Pa) at 20° C. of the aqueous gel ink satisfy conditions represented by the following formulas (1) and (2):in-line-formulae description="In-line Formulae" end="lead"?0.24≦r≦0.64 (1), andin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?1.3≦G′≦16r−3.2 (2).in-line-formulae description="In-line Formulae" end="tail"?
REFERENCES:
patent: 5609432 (1997-03-01), Yamamoto et al.
patent: 6299376 (2001-10-01), Nakatani
patent: 2007/0292200 (2007-12-01), Takasu
patent: 11-148043 (1999-06-01), None
patent: 2000-327982 (2000-11-01), None
patent: 2004-59877 (2004-02-01), None
Morrison & Foerster / LLP
Walczak David J
Zebra Co. Ltd.
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