Ernest V. Johnson

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Phillipston, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for attaching metallic and ceramic materials
- Patent number 5,444,587
- Issue date Aug 22, 1995
- Quantum Corporation
- Ernest V. Johnson
- G11 - INFORMATION STORAGE
Information Patent Grant
Ceramic support arm for movably positioning transducers
- Patent number 4,949,194
- Issue date Aug 14, 1990
- Quest Technology Corporation
- John A. MacPherson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL