Thomas F. Eichhorn

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Boulder County, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
System for monitoring and controlling electrophotographic toner ope...
- Patent number 4,502,778
- Issue date Mar 5, 1985
- International Business Machines Corporation
- John H. Dodge
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dynamic deskewing for a rotating head recording device
- Patent number T959012
- Issue date Jun 7, 1977
- Nelson Kay Arter
- 360 - Dynamic magnetic information storage or retrieval
Information Patent Grant
Rotary head magnetic recorder for use with a specific record member
- Patent number 4,011,587
- Issue date Mar 8, 1977
- International Business Machines Corporation
- Nelson K. Arter
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic record member for use with rotating head magnetic recordin...
- Patent number 3,932,894
- Issue date Jan 13, 1976
- International Business Machines Corporation
- Nelson K. Arter
- G11 - INFORMATION STORAGE