Inventor
KOYAMA SABURO
JP7 patents
Patents
7 patentsUS5376186ADec 27, 1994
Heat treating oil composition
IDEMITSU KOSAN CO20 citations92
US5171903ADec 15, 1992
Lubricating oil composition
IDEMITSU KOSAN CO22 citations88
US5250122AOct 5, 1993
Heat treating oil composition
IDEMITSU KOSAN CO19 citations81
US7846319B2Dec 7, 2010
Organic compound hydrogenation apparatus and method for hydrogenating organic compound
IDEMITSU KOSAN CO8 citations80
US6562766B1May 13, 2003
Metal working oil composition
IDEMITSU KOSAN CO15 citations76
US5072067ADec 10, 1991
Lubricating oil composition
IDEMITSU KOSAN CO7 citations71
US7670474B2Mar 2, 2010
Method of reducing/regenerating oil or preventing oxidization/degeneration thereof
IDEMITSU KOSAN CO0 citations48