YT

Yasunori Tomari

IC Idemitsu Kosan Co.: 2 patents #509 of 1,237Top 45%
Overall (All Time): #2,313,111 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5171903 Lubricating oil composition Saburo Koyama, Seiichi Shido, Kenji Onodera, Shigeo Hara, Toshio Saito +1 more 1992-12-15
4832860 Lubricating oil for metal working Tadashi Katafuchi, Hiroo Mitazaki, Seiichi Shido, Kenji Onodera 1989-05-23