KH

Kengo Hattori

Ngk Spark Plug Co.: 2 patents #703 of 1,594Top 45%
NC Niterra Co.: 1 patents #41 of 125Top 35%
Overall (All Time): #1,331,749 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12407148 Spark plug Kaito Nakamura, Daisuke Sumoyama, Takaaki Kikai 2025-09-02
12308619 Noble metal tip for spark plug, electrode for spark plug, and spark plug Osamu Yoshimoto, Tomoo Tanaka 2025-05-20
11616346 Spark plug Kazuki ITO, Hiroaki Izawa 2023-03-28