-
-
Optical recording medium
-
Patent number 4,961,979
-
Issue date Oct 9, 1990
-
Kabushiki Kaisha Toshiba
-
Atsuko Iida
-
G11 - INFORMATION STORAGE
-
-
-
Magnetic recording medium
-
Patent number 4,652,479
-
Issue date Mar 24, 1987
-
Kabushiki Kaisha Toshiba
-
Toshiyuki Suzuki
-
G11 - INFORMATION STORAGE
-
Magnetic recording medium
-
Patent number 4,649,073
-
Issue date Mar 10, 1987
-
Kabushiki Kaisha Toshiba
-
Toshiyuki Suzuki
-
G11 - INFORMATION STORAGE
-
-
Magnetic recording medium
-
Patent number 4,410,603
-
Issue date Oct 18, 1983
-
Tokyo Shibaura Denki Kabushiki Kaisha
-
Kazuyoshi Yamamori
-
G11 - INFORMATION STORAGE