Duane E. Johnson

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Los Gatos, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing electron beam resists
- Patent number 4,074,031
- Issue date Feb 14, 1978
- International Business Machines Corporation
- Duane E. Johnson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Positive polymeric electron beam resists of very great sensitivity
- Patent number 3,996,393
- Issue date Dec 7, 1976
- International Business Machines Corporation
- Charles A. Cortellino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY