SK

Saburo Koyama

IC Idemitsu Kosan Co.: 1 patents #34 of 95Top 40%
Overall (1994): #71,194 of 165,921Top 45%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5376186 Heat treating oil composition Hitoshi Uchida, Eiichi Nakamura 1994-12-27