INTERNATIONAL PATENT: TORAY FINE CHEMICALS CO.,LTD., 東レ・ファインケミカル株式会社 FILES APPLICATION FOR "ELECTRET FIBER SHEET, METHOD FOR PRODUCING SAME AND FILTER MATERIAL FOR AIR FILTER"

GENEVA, Dec. 22 -- TORAY FINE CHEMICALS CO.,LTD. (3-1, Kanda-Sudacho 2-chome, Chiyoda-ku, Tokyo1010041), 東レ・ファインケミカル株式会社 (東京都千代田区神田須田町二丁目３番地１) filed a patent application (PCT/JP2024/021301) for "ELECTRET FIBER SHEET, METHOD FOR PRODUCING SAME, AND FILTER MATERIAL FOR AIR FILTER" on Jun 12, 2024. With publication no. WO/2025/257958, the details related to the patent application was published on Dec 18, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) sy...