Ronald R. Johnson

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Shorewood, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Master/slave system for replicating/formatting flexible magnetic di...
- Patent number 4,727,509
- Issue date Feb 23, 1988
- Information Exchange Systems, Inc.
- Ronald R. Johnson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Triple combination flexible diskette picker
- Patent number 4,720,230
- Issue date Jan 19, 1988
- Information Exchange Systems, Inc.
- Ronald R. Johnson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Disk drive with multiple head cartridge
- Patent number 4,667,258
- Issue date May 19, 1987
- IXI Laboratories, Inc.
- Ronald R. Johnson
- G11 - INFORMATION STORAGE
Information Patent Grant
System for synchronizing plural data storage devices to a common ma...
- Patent number 4,618,897
- Issue date Oct 21, 1986
- IXI Laboratories, Inc.
- Ronald R. Johnson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Horizontal flexible disk loading and sorting/collating mechanism
- Patent number 4,571,645
- Issue date Feb 18, 1986
- IXI Laboratories, Inc.
- Ronald R. Johnson
- G11 - INFORMATION STORAGE
Information Patent Grant
Flexible disk sorter slide apparatus
- Patent number 4,494,900
- Issue date Jan 22, 1985
- IXI Laboratories, Inc.
- Ronald R. Johnson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL