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:
Sep. 15, 2015
Filed:
Jun. 14, 2011
Toshimi Kamitani, Fujioka, JP;
Hiroyuki Okuyama, Fujioka, JP;
Mitsuhiro Kawabata, Fujioka, JP;
Tadashi Kouriki, Fujioka, JP;
Toshimi Kamitani, Fujioka, JP;
Hiroyuki Okuyama, Fujioka, JP;
Mitsuhiro Kawabata, Fujioka, JP;
Tadashi Kouriki, Fujioka, JP;
MITSUBISHI PENCIL COMPANY, LIMITED, Tokyo, JP;
Abstract
In order to provide a writing instrument in which a writing direction can be visually recognized in a broad range at a visual part of a pen tip and which can surely write to end of writing, the writing instrument is endowed with a constitution in which a pen tip is equipped with a porous member as a writing part and a holding member holding the above porous member and having at least one ink guiding part through which an ink contained in a barrel is provided to a writing part held by the holding member which is a visible part enabling to visually recognize a writing direction, wherein an area ratio of the visible part is 40% or more of the pen tip protruding from a tip part of the writing instrument.