John Charles Butler

Person

Centerville, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Flat stationary field light beam scanning device
- Patent number 4,947,039
- Issue date Aug 7, 1990
- Eotron Corporation
- John A. Lawson
- G02 - OPTICS
Information Patent Grant
Method and device for reading digital data in an optical mass memor...
- Patent number 4,628,367
- Issue date Dec 9, 1986
- Coulter Systems Corporation
- Manfred Kuehnle
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for half-tone reproduction of a varying tone o...
- Patent number 4,533,941
- Issue date Aug 6, 1985
- Coulter Systems Corporation
- John F. Keane
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical mass memory system using electrophotography
- Patent number 4,515,879
- Issue date May 7, 1985
- Coulter Systems Corporation
- Manfred R. Kuehnle
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Digital plate maker system and method
- Patent number 4,504,126
- Issue date Mar 12, 1985
- Coulter Systems Corporation
- E. Raymond Thomas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical system for imaging an electrophotographic member
- Patent number 4,493,549
- Issue date Jan 15, 1985
- Coulter Systems Corp.
- E. Raymond Thomas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital plate maker system and method
- Patent number 4,408,868
- Issue date Oct 11, 1983
- Coulter Systems Corporation
- E. Raymond Thomas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Laser operated scanning and printing system
- Patent number 4,054,928
- Issue date Oct 18, 1977
- The Mead Corporation
- John Charles Butler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

John Charles Butler

Person

Patents Grantslast 30 patents

Flat stationary field light beam scanning device

Method and device for reading digital data in an optical mass memor...

Method and apparatus for half-tone reproduction of a varying tone o...

Optical mass memory system using electrophotography

Digital plate maker system and method

Optical system for imaging an electrophotographic member

Digital plate maker system and method

Laser operated scanning and printing system