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. 01, 2006
Filed:
Aug. 23, 2002
Hisashi Iida, Yokohama, JP;
Shigeru Okumura, Yokohama, JP;
Kazuaki Matsumoto, Yokohama, JP;
Seiichi Kobayashi, Yokohama, JP;
Yusuke Kobayashi, Yokohama, JP;
Hisashi Iida, Yokohama, JP;
Shigeru Okumura, Yokohama, JP;
Kazuaki Matsumoto, Yokohama, JP;
Seiichi Kobayashi, Yokohama, JP;
Yusuke Kobayashi, Yokohama, JP;
Mitsubishi Pencil KabushikiKaisha, Tokyo, JP;
Abstract
A writing implement includes a cylindrical shaft member, a pen tip member which is fixed to one end of the shaft member and from which colored ink seeps out, liquid for ink which is stored in the shaft member and which comprises a part of the colored ink seeping out from the end of the pen tip member, and colorant to be added to the above described liquid for ink to be the colored ink. Moreover, at least a part of a cylindrical side surface of the shaft member corresponding to the storing part of the liquid for ink is formed to be transparent. Between the liquid for ink and the colorant-storing part storing the colorant is provided a colorant-adsorbing core which introduces the liquid for ink into the colorant-storing part while capturing the colorant diffusing toward the storing part of the liquid for ink.