John E. Gantzhorn Jr.

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Hockessin, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Loop bin
- Patent number 4,901,167
- Issue date Feb 13, 1990
- Otari Electric Company, Ltd.
- John E. Gantzhorn
- G11 - INFORMATION STORAGE
Information Patent Grant
High speed contact printing process for prerecorded magnetic tape
- Patent number 4,882,636
- Issue date Nov 21, 1989
- Otari Electric Company, Ltd.
- Wayne E. Billings
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape transporting device
- Patent number 4,843,487
- Issue date Jun 27, 1989
- Otari Electric Company, Ltd.
- John E. Gantzhorn
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape transporting device
- Patent number 4,814,899
- Issue date Mar 21, 1989
- Otari Electric Company, Ltd.
- John E. Gantzhorn
- G11 - INFORMATION STORAGE
Information Patent Grant
High speed thermomagnetic tape duplication
- Patent number 4,698,701
- Issue date Oct 6, 1987
- E. I. Du Pont de Nemours and Company
- John E. Gantzhorn
- G11 - INFORMATION STORAGE