HK

Hitoshi Komatsubara

JE Jx Nippon Oil & Energy: 1 patents #1 of 19Top 6%
JE Jxtg Nippon Oil & Energy: 1 patents #29 of 72Top 45%
Overall (2019): #167,426 of 560,194Top 30%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10443016 Lubricating oil composition for gear oil 2019-10-15
10227541 Lubricating oil composition for transmissions Kohei Masuda, Hajime Nakao 2019-03-12