INTERNATIONAL PATENT: NIPPON PISTON RING CO., LTD., 日本ピストンリング株式会社 FILES APPLICATION FOR "VALVE SEAT WITH SUPERIOR WEAR RESISTANCE AND COMBINATION OF VALVE AND VALVE SEAT"

GENEVA, Dec. 23 -- NIPPON PISTON RING CO., LTD. (12-10, Honmachi-Higashi 5-chome, Chuo-ku, Saitama-shi, Saitama3388503), 日本ピストンリング株式会社 (埼玉県さいたま市中央区本町東５丁目１２番１０号) filed a patent application (PCT/JP2025/020479) for "VALVE SEAT WITH SUPERIOR WEAR RESISTANCE, AND COMBINATION OF VALVE AND VALVE SEAT" on Jun 06, 2025. With publication no. WO/2025/258501, the details related to the patent application was published on Dec 18, 2025.

Notably, the patent application was submitted under the International ...