Inventor
KAWAI HISAO
JP13 patents
⚠️ This page may combine multiple inventors who share the name “KAWAI HISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
11 patentsUS5900324AMay 4, 1999
Magnetic recording media, methods for producing the same and magnetic recorders
HOYA CORP50 citations92
US5640089AJun 17, 1997
Method and apparatus for surface roughness detection - using a magnetoresistive element
HOYA CORP38 citations92
US4590128AMay 20, 1986
Thin film EL element
HOYA CORP26 citations92
US5029317AJul 2, 1991
Magnetic recording medium capable of recording information at a high recording density
HOYA CORP24 citations91
US6428396B2Aug 6, 2002
Method of producing a substrate for an information recording medium and method of producing an information recording medium
HOYA CORP10 citations74
US5954927ASep 21, 1999
Method of manufacturing magnetic recording medium
HOYA CORP12 citations73
US5746893AMay 5, 1998
Method of manufacturing magnetic recording medium
HOYA CORP6 citations73
US4634639AJan 6, 1987
Electroluminescent panel having a light absorption layer of germanium oxide
HOYA CORP11 citations73
US4568791AFeb 4, 1986
Solar cell comprising an undulated transparent conductive layer
HOYA CORP14 citations73
US5087482AFeb 11, 1992
Method of manufacturing magnetic recording medium capable of recording information at a high recording density
HOYA CORP12 citations72
US5766727AJun 16, 1998
Magnetic recording medium and method for manufacturing the same
HOYA CORP11 citations67