John C. Cheng

Follow

Person

San Jose, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Dichromatic photomask and a method for its fabrication
- Patent number 5,501,926
- Issue date Mar 26, 1996
- International Business Machines Corporation
- John C. Cheng
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Patterning process for bipolar optical storage medium
- Patent number 5,432,047
- Issue date Jul 11, 1995
- International Business Machines Corporation
- John C. Cheng
- G11 - INFORMATION STORAGE