James R. Hack

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Villa Park, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Printed wire recording transducer for electrostatic printing/plotti...
- Patent number 5,489,934
- Issue date Feb 6, 1996
- CalComp Inc.
- James R. Hack
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of manufacturing electrostatic printer heads
- Patent number 4,920,363
- Issue date Apr 24, 1990
- CalComp Inc.
- James R. Hack
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Circuit for improving the resolution in electrostatic printers
- Patent number 4,828,407
- Issue date May 9, 1989
- Sanders Associates, Inc.
- James R. Hack
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Electrostatic printhead method and apparatus
- Patent number 4,766,448
- Issue date Aug 23, 1988
- Sanders Associates, Inc.
- James R. Hack
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS