-
-
-
-
-
Wave absorber
-
Patent number 5,952,953
-
Issue date Sep 14, 1999
-
Hitachi Maxell, Ltd.
-
Yoshio Nikawa
-
H01 - BASIC ELECTRIC ELEMENTS
-
-
-
Magnetic recording medium
-
Patent number 4,770,933
-
Issue date Sep 13, 1988
-
Hitachi Maxell, Ltd.
-
Shinichi Kitahata
-
G11 - INFORMATION STORAGE
-
Magnetic recording medium
-
Patent number 4,705,718
-
Issue date Nov 10, 1987
-
Hitachi Maxell, Ltd.
-
Shinichi Kitahata
-
G11 - INFORMATION STORAGE
-
Magnetic recording medium
-
Patent number 4,677,024
-
Issue date Jun 30, 1987
-
Hitachi Maxell, Ltd.
-
Shinichi Kitahata
-
G11 - INFORMATION STORAGE