GENEVA, Feb. 17 -- MITSUBISHI PENCIL COMPANY, LIMITED (5-23-37, Higashi-Ohi, Shinagawa-ku, Tokyo1408537), 三菱鉛筆株式会社 (東京都品川区東大井５丁目２３番３７号) filed a patent application (PCT/JP2025/025089) for "AQUEOUS INK COMPOSITION AND WRITING INSTRUMENT" on Jul 14, 2025. With publication no. WO/2026/034124, the details related to the patent application was published on Feb 12, 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): TAKADA ...