Title:
MIDDLE CORE FOR BALL POINT PEN AND BALL POINT PEN USING THE SAME
Document Type and Number:
Japanese Patent JP2014213533
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To allow a user to easily understand a writing amount and a learning amount or the like.SOLUTION: There is provided the middle core for a ball point pen in which ink I moving forward in an ink storage tube 10 in accordance with expenditure can be viewed via a transparent peripheral wall of the ink storage tube 10. The peripheral wall comprises plural display parts 11 and 12 arranged in a cross direction. The plural display parts 11 and 12 are changed as they transit forward.
Inventors:
NARITA KUMI
ITAMI TAKASHI
UEDA YUSUKE
ITAMI TAKASHI
UEDA YUSUKE
Application Number:
JP2013093009A
Publication Date:
November 17, 2014
Filing Date:
April 25, 2013
Export Citation:
Assignee:
ZEBRA PEN CORP
International Classes:
B43K7/06; B43K7/12; B43K24/08
Domestic Patent References:
| JPS6265280U | 1987-04-23 | |||
| JPH1038420A | 1998-02-13 |
Foreign References:
| DE202008000431U1 | 2009-01-02 | |||
| US6068422A | 2000-05-30 |
Attorney, Agent or Firm:
Patent business corporation Wisdom international patent firm
Tatsuaki Kobashi
Tatsuaki Kobashi