Japan, July 14 -- PILOT CORPORATION has got intellectual property rights for 'WRITING IMPLEMENT.' Other related details are as follows:
Application Number: JP,2022-210740
Category (FI): B43K24/00,100,B43K5/16
Stage: PROBLEM TO BE SOLVED: To inhibit ink in a writing implement from leaking to an interior of accommodation space of the writing implement.SOLUTION: A writing implement 10 comprises: a barrel 20 including an opening 22a; a writing member 12 including a penpoint 13; a protruding/retracting mechanism 40 that makes the penpoint 13 protrude from or retract into the opening 22a; and a sealing mechanism 70 that seals an accommodation space S for the penpoint 13 in a retracted state of the penpoint 13. In the writing implement 10, the sealing mechanism 70 includes: a lid member 72 capable of closing the opening 22a by contacting a contact surface 22b surrounding the opening 22a; and a negative pressure preventing mechanism 80 that inhibits pressure inside the accommodation space S from being negative.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: Dec. 27, 2022
Publication Date: July 9, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
