GENEVA, April 28 -- MITSUI CHEMICALS, INC. (2-1, Yaesu 2-chome, Chuo-ku, Tokyo1040028), 三井化学株式会社 (東京都中央区八重洲二丁目2番1号) filed a patent application (PCT/JP2025/036724) for "PELLICLE FRAME, PELLICLE, AND EXPOSURE ORIGINAL PLATE" on Oct 17, 2025. With publication no. WO/2026/084069, the details related to the patent application was published on Apr 23, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): ISHIKAWA, Akira (c/o Mitsui Chemic...