GENEVA, Nov. 4 -- CITIZEN WATCH CO., LTD. (1-12, Tanashicho 6-chome, Nishitokyo-shi, Tokyo1888511), シチズン時計株式会社 (東京都西東京市田無町六丁目１番１２号) filed a patent application (PCT/JP2025/015478) for "Fe-Mn ALLOY AND TIMEPIECE HAIRSPRING COMPOSED OF Fe-Mn ALLOY" on Apr 21, 2025. With publication no. WO/2025/225580, the details related to the patent application was published on Oct 30, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO...