Richard N. Gardner

Person

Grant Township, Washington County, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Amorphous magneto optical recording medium
- Patent number 4,833,043
- Issue date May 23, 1989
- Minnesota Mining and Manufacturing Company
- Richard N. Gardner
- G02 - OPTICS
Information Patent Grant
Amorphous magneto optical recording medium
- Patent number 4,721,658
- Issue date Jan 26, 1988
- Minnesota Mining and Manufacturing Company
- Richard N. Gardner
- G02 - OPTICS
Information Patent Grant
Sputtering process for making magneto optic alloy
- Patent number 4,684,454
- Issue date Aug 4, 1987
- Minnesota Mining and Manufacturing Company
- Richard N. Gardner
- G02 - OPTICS
Information Patent Grant
Amorphous magneto optical recording medium
- Patent number 4,615,944
- Issue date Oct 7, 1986
- Minnesota Mining and Manufacturing Company
- Richard N. Gardner
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-layer amorphous magneto optical recording medium
- Patent number 4,569,881
- Issue date Feb 11, 1986
- Minnesota Mining and Manufacturing Company
- Robert P. Freese
- G11 - INFORMATION STORAGE
Information Patent Grant
Infiltrated powered metal composite article
- Patent number 4,554,218
- Issue date Nov 19, 1985
- Minnesota Mining and Manufacturing Company
- Richard N. Gardner
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Austenitic manganese steel-containing composite article
- Patent number 4,491,558
- Issue date Jan 1, 1985
- Minnesota Mining and Manufacturing Company
- Richard N. Gardner
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Infiltrated powdered metal composite article
- Patent number 4,327,156
- Issue date Apr 27, 1982
- Minnesota Mining and Manufacturing Company
- Kenneth R. Dillon
- B22 - CASTING POWDER METALLURGY

Richard N. Gardner

Person

Patents Grantslast 30 patents

Amorphous magneto optical recording medium

Amorphous magneto optical recording medium

Sputtering process for making magneto optic alloy

Amorphous magneto optical recording medium

Multi-layer amorphous magneto optical recording medium

Infiltrated powered metal composite article

Austenitic manganese steel-containing composite article

Infiltrated powdered metal composite article