MUMBAI, India, March 28 -- Intellectual Property India has published a patent application (202517008204 A) filed by Kabushiki Kaisha Riken, Tokyo, on Jan. 31, for 'piston ring.'
Inventor(s) include Takahashi Junya; and Honda Keiji.
The application for the patent was published on March 28, under issue no. 13/2025.
According to the abstract released by the Intellectual Property India: "This piston ring includes: a piston ring base material having a joint part; and a film covering at least an outer peripheral surface of the piston ring base material. The thermal resistance value of the film is 2.0 ?? 10 6 to 12.0 ?? 10 6 m2???K/W."
The patent application was internationally filed on Aug. 29, 2023, under International application No.PCT/JP2...