Inventor
SOMEZAWA MASASHI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “SOMEZAWA MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
17 patentsUS4521486AJun 4, 1985
Magnetic recording medium
SONY CORP36 citations92
US4434210AFeb 28, 1984
Magnetic recording medium
SONY CORP30 citations92
US4654260AMar 31, 1987
Magnetic recording medium
SONY CORP26 citations91
US4637959AJan 20, 1987
Magnetic recording medium
SONY CORP32 citations91
US4634633AJan 6, 1987
Magnetic recording medium
SONY CORP26 citations91
US4400498AAug 23, 1983
Thermoplastic polyurethane resins
SONY CORP37 citations90
US4503198AMar 5, 1985
Electron radiation curable resin
SONY CORP19 citations81
US4100326AJul 11, 1978
Method for treating a magnetic recording medium
SONY CORP19 citations79
US4435485AMar 6, 1984
Magnetic recording medium
SONY CORP14 citations74
US4396674AAug 2, 1983
Magnetic recording medium with amino lubricating layer
SONY CORP6 citations74
US4369230AJan 18, 1983
Magnetic recording medium
SONY CORP15 citations74
US5028497AJul 2, 1991
Magnetic recording medium utilizing a fungicide
SONY CORP8 citations73
US4508752AApr 2, 1985
Method for manufacturing a magnetic recording medium
SONY CORP15 citations73
US4501801AFeb 26, 1985
Magnetic recording medium
SONY CORP11 citations73
US4431703AFeb 14, 1984
Magnetic recording medium
SONY CORP17 citations73
US4368238AJan 11, 1983
Magnetic recording media
SONY CORP16 citations73
US4368242AJan 11, 1983
Magnetic recording medium
SONY CORP5 citations63