Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–3 of 3 inventors

Rank Inventor Primary Company Patents
1 Takeshi Mitsuoka Ngk Spark Plug Co. 2
2 Motohiro Hatano Tokai Rubber Industries 1
2 Masayasu Kurachi Yutaka Mfg. Co. 1