KS

Kenji SUNAHARA

IC Idemitsu Kosan Co.: 7 patents #211 of 1,237Top 20%
TO Toyota: 2 patents #10,861 of 26,838Top 45%
📍 Chiyoda, JP: #499 of 1,712 inventorsTop 30%
Overall (All Time): #682,105 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12410379 Lubricant oil composition Shoichiro FUJITA, Masaya Kubota, Shota KATO 2025-09-09
12391897 Lubricating oil composition Shoichiro FUJITA 2025-08-19
12384982 Lubricating oil composition Shoichiro FUJITA, Tsukasa Yamagishi, Masaya Kubota 2025-08-12
12359144 Lubricant composition Shoichiro FUJITA, Masaya Kubota 2025-07-15
12305140 Lubricating oil composition 2025-05-20
11274262 Lubricating oil composition and use method therefor Kazuo Yamamori, Kosuke Fujimoto 2022-03-15
11193080 Lubricating oil composition Toyoharu Kaneko, Kazuo Yamamori 2021-12-07