GENEVA, June 23 -- SUMITOMO OSAKA CEMENT CO.,LTD. (1-9-2 Higashi-Shimbashi, Minato-ku, Tokyo1058641), 住友大阪セメント株式会社 (東京都港区東新橋一丁目９番２号) filed a patent application (PCT/JP2023/044433) for "OPTICAL WAVEGUIDE ELEMENT, OPTICAL MODULATOR, AND OPTICAL TRANSMISSION DEVICE" on Dec 12, 2023. With publication no. WO/2025/126318, the details related to the patent application was published on Jun 19, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organiz...