Robert R. Hay

Person

Boise, ID, US

People

Patents Grantslast 30 patents

Information Patent Grant
Non-contacting communication and power interface between a printing...
- Patent number 6,239,879
- Issue date May 29, 2001
- Hewlett-Packard Company
- Robert R. Hay
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Head lift limiter for a disk drive
- Patent number 5,239,431
- Issue date Aug 24, 1993
- Hewlett-Packard Company
- Clifford K. Day
- G11 - INFORMATION STORAGE
Information Patent Grant
Barrier layer and orifice plate for thermal ink jet print head asse...
- Patent number 4,716,423
- Issue date Dec 29, 1987
- Hewlett-Packard Company
- C. S. Chan
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Barrier layer and orifice plate for thermal ink jet printhead assembly
- Patent number 4,694,308
- Issue date Sep 15, 1987
- Hewlett-Packard Company
- C. S. Chan
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Nozzle test apparatus and method for thermal ink jet systems
- Patent number 4,590,482
- Issue date May 20, 1986
- Hewlett-Packard Company
- Robert R. Hay
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal ink jet printhead with self-passivating elements
- Patent number 4,535,343
- Issue date Aug 13, 1985
- Hewlett-Packard Company
- Conrad L. Wright
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Corona discharge device for electrophotographic charging and potent...
- Patent number 4,408,865
- Issue date Oct 11, 1983
- Hewlett-Packard Company
- Thomas Camis
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic voltmeter
- Patent number 4,197,493
- Issue date Apr 8, 1980
- Hewlett-Packard Company
- Ronald A. Juve
- G01 - MEASURING TESTING

Robert R. Hay

Person

Patents Grantslast 30 patents

Non-contacting communication and power interface between a printing...

Head lift limiter for a disk drive

Barrier layer and orifice plate for thermal ink jet print head asse...

Barrier layer and orifice plate for thermal ink jet printhead assembly

Nozzle test apparatus and method for thermal ink jet systems

Thermal ink jet printhead with self-passivating elements

Corona discharge device for electrophotographic charging and potent...

Electrostatic voltmeter