GENEVA, April 20 -- KAO CORPORATION (14-10, Nihonbashi Kayabacho 1-chome, Chuo-ku, Tokyo1038210), 花王株式会社 (東京都中央区日本橋茅場町一丁目14番10号), KANEKA CORPORATION (2-3-18, Nakanoshima, Kita-ku, Osaka-shi, Osaka5308288), 株式会社カネカ (大阪府大阪市北区中之島二丁目3番地18号) filed a patent application (PCT/JP2024/036353) for "REGENERATED COLLAGEN FIBER TREATMENT METHOD, MODIFIED REGENERATED COLLAGEN FIBER AN...