GENEVA, Oct. 13 -- TOPPAN HOLDINGS INC. (5-1, Taito 1-chome, Taito-ku, Tokyo1100016), TOPPANホールディングス株式会社 (東京都台東区台東1丁目5番1号) filed a patent application (PCT/JP2025/010387) for "LIGHT CONTROL SHEET, LIGHT CONTROL DEVICE, AND METHOD FOR PRODUCING LIGHT CONTROL SHEET" on Mar 18, 2025. With publication no. WO/2025/211157, the details related to the patent application was published on Oct 09, 2025.

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