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Charles C- K Cheng
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Cupertino, CA, US
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last 30 patents
Information
Patent Grant
High numerical aperture optical focusing device having a conical in...
Patent number
6,377,535
Issue date
Apr 23, 2002
Read-Rite Corporation
Hong Chen
B82 - NANO-TECHNOLOGY
Information
Patent Grant
High numerical aperture optical focusing device for use in data sto...
Patent number
6,229,782
Issue date
May 8, 2001
Read-Rite Corporation
Yugang Wang
B82 - NANO-TECHNOLOGY
Information
Patent Grant
High NA solid catadioptric focusing device having a flat kinoform p...
Patent number
6,212,153
Issue date
Apr 3, 2001
Read-Rite Corporation
Hong Chen
B82 - NANO-TECHNOLOGY
Information
Patent Grant
High numerical aperture optical focusing device for use in data sto...
Patent number
6,185,051
Issue date
Feb 6, 2001
Read-Rite Corporation
Hong Chen
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Near field magneto-optical head made using wafer processing techniques
Patent number
6,130,779
Issue date
Oct 10, 2000
Read-Rite Corporation
Carl J. Carlson
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Wafer processing techniques for near field magneto-optical head
Patent number
6,094,803
Issue date
Aug 1, 2000
Read-Rite Corporation
Carl Carlson
G11 - INFORMATION STORAGE
Information
Patent Grant
Read/write head and method for magnetic reading and magneto-optical...
Patent number
5,986,978
Issue date
Nov 16, 1999
Read-Rite Corporation
Robert E. Rottmayer
B82 - NANO-TECHNOLOGY
Information
Patent Grant
High NA catadioptric focusing device having flat diffractive surfaces
Patent number
5,986,995
Issue date
Nov 16, 1999
Read-Rite Corporation
Chuan He
B82 - NANO-TECHNOLOGY