Inventor
SAKAI KOUZOU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “SAKAI KOUZOU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO CHEMICAL IND LTD
4 patentsUS5763374AJun 9, 1998
Lubricating oil compositions of reduced high-temperature high-shear viscosity
SANYO CHEMICAL IND LTD52 citations94
US5622924AApr 22, 1997
Viscosity index improver and lubricating oil
SANYO CHEMICAL IND LTD24 citations91
US5130359AJul 14, 1992
Viscosity index improver and method for producing the same
SANYO CHEMICAL IND LTD20 citations71
US5344863ASep 6, 1994
Viscosity index improver
SANYO CHEMICAL IND LTD4 citations56