MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202514086910 A) filed by Hitachi, Ltd. on September 12, 2025, for Railway Vehicle.
Inventors include Koki Yamaguchi; Shintaro Yabe; Fumiya Ito; Tadamasa Kaneyasu; Shinji Kinoshita; and Daisuke Muto.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: By filling a space inside a double wall structure, such as a space between a body structure and an interior of a railway vehicle or in a floor plate core material with a sound absorbing material, it is possible to reduce vehicle interior noise while reducing man-hours for sound absorbing material filling, even when dimensional accuracy of the body structure ...