Allan Lawrence Holmstrand

Person

Bloomington, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Textured lapping plate and process for its manufacture
- Patent number 4,866,886
- Issue date Sep 19, 1989
- Magnetic Peripherals Inc.
- Allan L. Holmstrand
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus for guiding the flow of abrasive slurry over a lapping su...
- Patent number 4,850,157
- Issue date Jul 25, 1989
- Magnetic Peripherals Inc.
- Allan L. Holmstrand
- B24 - GRINDING POLISHING
Information Patent Grant
Textured lapping plate and process for its manufacture
- Patent number 4,821,461
- Issue date Apr 18, 1989
- Magnetic Peripherals Inc.
- Allan L. Holmstrand
- B24 - GRINDING POLISHING
Information Patent Grant
Slurry dispensing system having self-purging capabilities
- Patent number 4,784,295
- Issue date Nov 15, 1988
- Magnetic Peripherals Inc.
- Allan L. Holmstrand
- B24 - GRINDING POLISHING
Information Patent Grant
Method for calibrating a machining sensor
- Patent number 4,559,743
- Issue date Dec 24, 1985
- Magnetic Peripherals, Inc.
- Alan G. Kracke
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Precision lapping system
- Patent number 4,536,992
- Issue date Aug 27, 1985
- Magnetic Peripherals
- Douglas J. Hennenfent
- B24 - GRINDING POLISHING
Information Patent Grant
Method for attaching a workpiece to a workpiece carrier
- Patent number 4,517,041
- Issue date May 14, 1985
- Magnetic Peripherals Inc.
- Douglas J. Hennenfent
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Workpiece carrier
- Patent number 4,457,114
- Issue date Jul 3, 1984
- Magnetic Peripherals Inc.
- Douglas J. Hennenfent
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of aligning a precision grinding wheel assembly
- Patent number 4,297,781
- Issue date Nov 3, 1981
- Magnetic Peripherals Inc.
- Douglas J. Hennenfent
- B24 - GRINDING POLISHING
Information Patent Grant
Method of manufacturing narrow track ferrite head cores
- Patent number 4,279,102
- Issue date Jul 21, 1981
- Magnetic Peripherals Inc.
- Douglas J. Hennenfent
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Precision grinding wheel mount
- Patent number 4,236,355
- Issue date Dec 2, 1980
- Control Data Corporation
- Douglas J. Hennenfent
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of forming gaps in magnetic heads
- Patent number 4,182,643
- Issue date Jan 8, 1980
- Control Data Corporation
- Arthur Calderon
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic transducer head core manufacturing method
- Patent number 3,982,318
- Issue date Sep 28, 1976
- Control Data Corporation
- Douglas Joseph Hennenfent
- G11 - INFORMATION STORAGE

Allan Lawrence Holmstrand

Person

Patents Grantslast 30 patents

Textured lapping plate and process for its manufacture

Apparatus for guiding the flow of abrasive slurry over a lapping su...

Textured lapping plate and process for its manufacture

Slurry dispensing system having self-purging capabilities

Method for calibrating a machining sensor

Precision lapping system

Method for attaching a workpiece to a workpiece carrier

Workpiece carrier

Method of aligning a precision grinding wheel assembly

Method of manufacturing narrow track ferrite head cores

Precision grinding wheel mount

Method of forming gaps in magnetic heads

Magnetic transducer head core manufacturing method