GENEVA, Sept. 2 -- TOHOKU SEIREN CO., LTD. (2736-1, Kubota, Kubota-machi, Yonezawa-shi, Yamagata9920003), 東北整練株式会社 (山形県米沢市窪田町窪田２７３６－１), NIPPON PAPER INDUSTRIES CO., LTD. (4-1, Oji 1-chome, Kita-ku, Tokyo1140002), 日本製紙株式会社 (東京都北区王子１丁目４番１号) filed a patent application (PCT/JP2025/005252) for "PAPER YARN AND METHOD FOR PRODUCING PAPER YARN" on Feb 18, 2025. With publication no. WO/2025/178002, the details related to the p...