KS

Keita Sugihara

HI Hitachi: 2 patents #55 of 745Top 8%
Ngk Spark Plug Co.: 1 patents #13 of 73Top 20%
Overall (2023): #71,875 of 537,848Top 15%
3
Patents 2023

Issued Patents 2023

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11797402 Storage system and control method Keisuke Matsumoto, Genki Matsuda 2023-10-24
11749971 Metallic shell for spark plug and spark plug using the same Takahiro SANDA, Noriyasu Hasegawa, Yohei KOZAKAI 2023-09-05
11734133 Cluster system and fail-over control method of cluster system Keisuke Matsumoto, Yuki Kuroda 2023-08-22