Japan, Aug. 18 -- 榊原隆之 holds the trademark for 'ながい坂道.' Other related details are as follows:
Application Number: Reg.No.7071197
Class: 35,42
Status: LIVE-REGISTRATION-Published for Opposition
Filing Date: Dec. 8, 2025
Registration Date: Aug. 5
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/c1801/TR/JP-2025-140808/40/en
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