Inventor
YAMASAKI HIROTAKA
JP6 patents
⚠️ This page may combine multiple inventors who share the name “YAMASAKI HIROTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
5 patentsUS6261474B1Jul 17, 2001
Lubricating oil for compression-type refrigerators containing pentafluoroethane and a polyvinyl ether
IDEMITSU KOSAN CO55 citations94
US5326488AJul 5, 1994
Mannich reaction product and process for producing the same and use of the product
IDEMITSU KOSAN CO24 citations89
US6087539AJul 11, 2000
Process for producing an ether compound
IDEMITSU KOSAN CO18 citations81
US5239107AAug 24, 1993
Process for producing polycyanoaryl ether powder
IDEMITSU KOSAN CO2 citations53
US4959487ASep 25, 1990
Process for producing aromatic nitrile
IDEMITSU KOSAN CO1 citations50