GENEVA, May 5 -- SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome, Chuo-ku, Osaka-shi, Osaka5410041), 住友電気工業株式会社 (大阪府大阪市中央区北浜四丁目5番33号) filed a patent application (PCT/JP2025/037022) for "METHOD FOR MEASURING AMOUNT OF TWIST OF OPTICAL FIBER, AND METHOD FOR MANUFACTURING OPTICAL FIBER" on Oct 21, 2025. With publication no. WO/2026/088958, the details related to the patent application was published on Apr 30, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is mana...