Title:
筆記具
Document Type and Number:
Japanese Patent JP7387451
Kind Code:
B2
Abstract:
To provide a writing instrument having a barrel that is light in weight, has high rigidity, and has no unevenness on the surface that adversely affects the fit when gripping.SOLUTION: There is provided a writing instrument 1 having a barrel 2 that is a tubular member formed in a tubular shape, a front barrel 3 attached to the front end of the barrel and formed in a tapered tubular shape, and a rear barrel 4 attached to the rear end of the barrel and formed in a tubular shape. The barrel has a substantially uniform wall thickness and is provided with a plurality of openings penetrating from the surface to the inner surface.SELECTED DRAWING: Figure 1
Inventors:
Satoshi Sumiyoshi
Takayuki Maki
Takayuki Maki
Application Number:
JP2020002466A
Publication Date:
November 28, 2023
Filing Date:
January 09, 2020
Export Citation:
Assignee:
MITSUBISHI PENCIL CO.,LTD.
International Classes:
B43K3/00
Domestic Patent References:
| JP2006289808A | ||||
| JP2013111920A | ||||
| JP2007253368A | ||||
| JP2005014585A | ||||
| JP2014004772A |
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