DT

Daisuke Takekawa

IC Idemitsu Kosan Co.: 2 patents #509 of 1,237Top 45%
Overall (All Time): #1,891,840 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11168279 Lubricating oil composition 2021-11-09
9458402 Lubricating oil composition 2016-10-04