Inventor
YASUDA KOUICHI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “YASUDA KOUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
10 patentsUS5329512AJul 12, 1994
Temperature detection of a magneto-optic recording medium for controlling irradiation of an erasure region
SONY CORP55 citations93
US5474874ADec 12, 1995
Optical recording medium
SONY CORP24 citations92
US5390162AFeb 14, 1995
Method for reproducing signals recorded on optical recording medium
SONY CORP29 citations92
US5353277AOct 4, 1994
Optical disk having intertrack heat conduction suppression
SONY CORP32 citations92
US5335213AAug 2, 1994
Positional detection of a magneto-optic recording medium for controlling irradiation of a relief region
SONY CORP50 citations92
US5304440AApr 19, 1994
Optical disk
SONY CORP22 citations92
US5450387ASep 12, 1995
Optical pickup apparatus for phase changing optical disk
SONY CORP11 citations73
US5432774AJul 11, 1995
Optical recording medium
SONY CORP19 citations73
US5380573AJan 10, 1995
Optical recording medium
SONY CORP4 citations62
US7464391B2Dec 9, 2008
Optical recording medium
SONY CORP0 citations48
KAWASAKI STEEL CO
2 patentsUS5326648AJul 5, 1994
Surface-treated steel sheet having improved weldability and plating properties, and method for producing the same
KAWASAKI STEEL CO33 citations92
US5421969AJun 6, 1995
Surface-treated steel sheet having improved weldability and plating properties, and method for producing the same
KAWASAKI STEEL CO0 citations51