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 storin...