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Tulip Memory Systems, Inc.
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Fremont, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Coating of metal substrate for magnetic recording medium
Patent number
6,103,367
Issue date
Aug 15, 2000
Tulip Memory Systems, Inc.
Richard D. Weir
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for making titanium or titanium-alloy substrate for magnetic...
Patent number
5,961,792
Issue date
Oct 5, 1999
Tulip Memory Systems, Inc.
Carl W. Nelson
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing austenitic stainless steel substrate for m...
Patent number
5,900,126
Issue date
May 4, 1999
Tulip Memory Systems, Inc.
Carl W. Nelson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for making ceramic substrates for magnetic-recording media
Patent number
5,855,951
Issue date
Jan 5, 1999
Tulip Memory Systems, Inc.
Carl W. Nelson
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium having a substrate and a titanium nitride...
Patent number
5,811,182
Issue date
Sep 22, 1998
Tulip Memory Systems, Inc.
Richard D. Weir
G11 - INFORMATION STORAGE
Information
Patent Grant
Titanium or titanium-alloy substrate for magnetic-recording media
Patent number
5,707,705
Issue date
Jan 13, 1998
Tulip Memory Systems, Inc.
Carl W. Nelson
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium having a ceramic substrate, an underlayer...
Patent number
5,681,635
Issue date
Oct 28, 1997
Tulip Memory Systems, Inc.
Carl W. Nelson
G11 - INFORMATION STORAGE
Information
Patent Grant
Precision-etched textured stop/start zone for magnetic-recording disks
Patent number
5,635,269
Issue date
Jun 3, 1997
Tulip Memory Systems, Inc.
Richard D. Weir
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for coating metal disc substrates for magnetic-recording media
Patent number
5,626,920
Issue date
May 6, 1997
Tulip Memory Systems, Inc.
Richard D. Weir
G11 - INFORMATION STORAGE
Information
Patent Grant
Protective overcoatings for magnetic-recording disks
Patent number
5,624,725
Issue date
Apr 29, 1997
Tulip Memory Systems, Inc.
Carl W. Nelson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Austenitic stainless steel substrate for magnetic-recording media
Patent number
5,536,549
Issue date
Jul 16, 1996
Tulip Memory Systems, Inc.
Carl W. Nelson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Circularly symmetric sputtering apparatus with hollow-cathode plasm...
Patent number
5,490,910
Issue date
Feb 13, 1996
Tulip Memory Systems, Inc.
Carl W. Nelson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Coldwall hollow-cathode plasma device for support of gas discharges
Patent number
5,457,298
Issue date
Oct 10, 1995
Tulip Memory Systems, Inc.
Carl W. Nelson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for forming protective overcoatings for metallic-film magnet...
Patent number
5,453,168
Issue date
Sep 26, 1995
Tulip Memory Systems, Inc.
Carl W. Nelson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Circularly symmetric, large-area, high-deposition-rate sputtering a...
Patent number
5,232,569
Issue date
Aug 3, 1993
Tulip Memory Systems, Inc.
Carl W. Nelson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...