-
-
Embossing metal hold
-
Patent number 5,338,178
-
Issue date Aug 16, 1994
-
Hitachi, Ltd.
-
Keizo Kato
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
Process for producing optical disks
-
Patent number 5,330,880
-
Issue date Jul 19, 1994
-
Hitachi, Ltd.
-
Shinkichi Horigome
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
Information-recording medium
-
Patent number 5,314,734
-
Issue date May 24, 1994
-
Hitachi, Ltd.
-
Tetsuya Nishida
-
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
-
-
-
-
-
-
-
Optical recording disk
-
Patent number 4,889,757
-
Issue date Dec 26, 1989
-
Hitachi, Ltd.
-
Shinkichi Horigome
-
G11 - INFORMATION STORAGE
-
-
-
Optical disc
-
Patent number 4,835,027
-
Issue date May 30, 1989
-
Hitachi, Ltd.
-
Ryoichi Sudo
-
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
-
-
-
-
Optical disc
-
Patent number 4,668,550
-
Issue date May 26, 1987
-
Hitachi, Ltd.
-
Tetsuo Tajima
-
G11 - INFORMATION STORAGE
-
-
-
-
-
Recording medium
-
Patent number 4,400,707
-
Issue date Aug 23, 1983
-
Hitachi, Ltd.
-
Munehisa Mitsuya
-
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
-
Recording member
-
Patent number 4,385,305
-
Issue date May 24, 1983
-
Hitachi, Ltd.
-
Motoyasu Terao
-
G11 - INFORMATION STORAGE
-
-
-
Electrophotographic member
-
Patent number 4,365,013
-
Issue date Dec 21, 1982
-
Hitachi, Ltd.
-
Sachio Ishioka
-
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
-
Recording medium
-
Patent number 4,357,616
-
Issue date Nov 2, 1982
-
Hitachi, Ltd.
-
Motoyasu Terao
-
G11 - INFORMATION STORAGE
-
Recording member
-
Patent number 4,348,461
-
Issue date Sep 7, 1982
-
Hitachi, Ltd.
-
Motoyasu Terao
-
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
-