Japan, Feb. 27 -- PILOT CORPORATION has got intellectual property rights for 'WRITING INSTRUMENT.' Other related details are as follows:
Application Number: JP,2025-113550
Category (FI): B43K3/00@H,B43K7/12
Stage: PROBLEM TO BE SOLVED: To provide a writing instrument capable of maintaining an effect of suppressing backlash in a barrel of a writing body and unnecessary for a user to remove an annular member in replacing the writing body, thereby preventing the annular member from being lost.SOLUTION: The writing instrument includes a barrel having an opening at a front end, a writing body stored in the barrel, and an annular member mounted on an inner surface of the barrel. The writing body includes a pen point and an ink reservoir storing an ink in its inside. The barrel comprises at least a front shaft including an opening from which the pen point is protruded, and a rear shaft detachably screwed into the front shaft. The annular member is mounted at a rear part of the front shaft, and the writing body is loosely inserted into the annular member.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: July 4, 2025
Publication Date: Sept. 4, 2025
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
