KM

Kouki Matsubara

SH Sumitomo Electric Hardmetal: 3 patents #18 of 73Top 25%
📍 Itami, JP: #17 of 73 inventorsTop 25%
Overall (2025): #55,365 of 469,880Top 15%
3
Patents 2025

Issued Patents 2025

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12377474 Drill head and drill Ryusei Hamada, Kenta Nishi 2025-08-05
12280439 Cutting tool body, cutting insert, and cutting tool Tomoyuki Fukuyama, Shota Takemura, Shota Tsujimoto, Naoki Matsuda 2025-04-22
12226840 Rotary cutting tool cutting insert and rotary cutting tool Sachie Goto, Kohei Ito, Toya Nonen 2025-02-18