Japan, Dec. 8 -- 古河電気工業株式会社 holds the trademark for 'らくらくユニット.' Other related details are as follows:
Application Number: Reg.No.6991041
Class: 09
Status: LIVE-REGISTRATION-Published for Opposition
Filing Date: June 11
Registration Date: Nov. 27
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/c1801/TR/JP-2025-064576/40/en
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