Richard S. Weir

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Agoura Hills, CA, US

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Patents Grantslast 30 patents

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 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
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
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...