MK

Masato Kaneko

IC Idemitsu Kosan Co.: 1 patents #13 of 55Top 25%
Overall (1989): #80,753 of 140,708Top 60%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4800030 Refrigerator oil composition Hiroshi Nagakawa, Kenichi Yamashita 1989-01-24