David J. Jennings

Person

Edina, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hard disk drive with cover and cover support
- Patent number 10,650,864
- Issue date May 12, 2020
- Seagate Technology LLC
- Gordon A. Harwood
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hydrodynamic spindle motor with an internally disposed heating element
- Patent number 6,741,420
- Issue date May 25, 2004
- Seagate Technology LLC
- David J. Jennings
- G11 - INFORMATION STORAGE
Information Patent Grant
Single plate hydrodynamic bearing cartridge
- Patent number 6,702,408
- Issue date Mar 9, 2004
- Seagate Technology LLC
- Lakshman Nagarathnam
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Apparatus for setting gaps in hydrodynamic bearing
- Patent number 6,530,143
- Issue date Mar 11, 2003
- Seagate Technology LLC
- David John Jennings
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermal compensation spindle for ceramic ball bearings
- Patent number 6,525,440
- Issue date Feb 25, 2003
- Seagate Technology LLC
- John W. Elsing
- G11 - INFORMATION STORAGE
Information Patent Grant
Annular gimbal assembly suitable for disc drive spindle bearings an...
- Patent number 6,293,705
- Issue date Sep 25, 2001
- Seagate Technology LLC
- John William Elsing
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Squeeze film damping for a hard disc drive
- Patent number 6,239,943
- Issue date May 29, 2001
- Seagate Technology LLC
- David John Jennings
- G11 - INFORMATION STORAGE
Information Patent Grant
Air gaging for setting gaps in hydrodynamic bearings
- Patent number 6,119,348
- Issue date Sep 19, 2000
- Seagate Technology LLC
- David John Jennings
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fluid retention principle for hydrodynamic bearings
- Patent number 5,993,066
- Issue date Nov 30, 1999
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Single plate hydrodynamic bearing with self-balancing fluid level
- Patent number 5,977,674
- Issue date Nov 2, 1999
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Device for manufacturing a groove bearing
- Patent number 5,946,958
- Issue date Sep 7, 1999
- Seagate Technology, Inc.
- Wesley Ronald Clark
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Disc drive spindle motor having hydro bearing with optimized lubric...
- Patent number 5,930,075
- Issue date Jul 27, 1999
- Seagate Technology, Inc.
- Raquib U. Khan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sinusoidal grooving pattern for grooved journal bearing
- Patent number 5,908,247
- Issue date Jun 1, 1999
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Low distortion interference fits for spindle motor assembly
- Patent number 5,793,129
- Issue date Aug 11, 1998
- Seagate Technology, Inc.
- Norbert Steven Parsoneault
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Disc drive with self-pressurizing fluid bearing and shaft-supportin...
- Patent number 5,710,678
- Issue date Jan 20, 1998
- Seagate Technology, Inc.
- Hans Leuthold
- G11 - INFORMATION STORAGE
Information Patent Grant
Hydrodynamic bearing with reduced temperature sensitivity
- Patent number 5,697,708
- Issue date Dec 16, 1997
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Single plate hydrodynamic bearing with self-balancing fluid level a...
- Patent number 5,685,647
- Issue date Nov 11, 1997
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Low distortion interference fits for spindle motor assembly
- Patent number 5,666,716
- Issue date Sep 16, 1997
- Seagate Technology, Inc.
- Norbert Steven Parsoneault
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydrodynamic bearing assembly with single sided grooved counterplace
- Patent number 5,653,540
- Issue date Aug 5, 1997
- Seagate Technology, Inc.
- Gunter Heine
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Single plate hydrodynamic bearing with self-balancing fluid level
- Patent number 5,533,812
- Issue date Jul 9, 1996
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fluid retention principles for hydrodynamic bearings
- Patent number 5,524,986
- Issue date Jun 11, 1996
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Device for manufacturing a groove bearing
- Patent number 5,520,038
- Issue date May 28, 1996
- Seagate Technology, Inc.
- Wesley R. Clark
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Single plate hydrodynamic bearing with self-balancing fluid level a...
- Patent number 5,487,608
- Issue date Jan 30, 1996
- Seagate Technology, Inc.
- Hans Leuthold
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hub-disc interface reducing hub reloaded disc surface curvature
- Patent number 5,457,589
- Issue date Oct 10, 1995
- Seagate Technology, Inc.
- Hans L. Leuthold
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
TEMPERATURE COMPENSATING ADJUSTABLE ULTRAVIOLET LAMP DRIVER CIRCUIT...
- Publication number 20240322754
- Publication date Sep 26, 2024
- MOCON, INC
- Charles Willcox
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PHOTOIONIZATION DETECTOR SENSOR WITH ADJUSTABLE GAIN
- Publication number 20240313733
- Publication date Sep 19, 2024
- MOCON, INC
- Charles Willcox
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
GALVANIC CURRENT PROTECTION FOR PHOTOIONIZATION DETECTOR
- Publication number 20240295528
- Publication date Sep 5, 2024
- Mocon, Inc.
- Charles Willcox
- G01 - MEASURING TESTING
Information Patent Application
PHOTOIONIZATION DETECTOR HAVING IMPROVED GAIN AND REDUCED HUMIDITY...
- Publication number 20240295529
- Publication date Sep 5, 2024
- Mocon, Inc.
- Charles R. Willcox
- G01 - MEASURING TESTING
Information Patent Application
PHOTOIONIZATION DETECTOR HAVING IMPROVED GAIN AND REDUCED HUMIDITY...
- Publication number 20240297034
- Publication date Sep 5, 2024
- Mocon, Inc.
- Charles R. Willcox
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and apparatus for correcting image distortion
- Publication number 20080239109
- Publication date Oct 2, 2008
- David John Jennings
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Single plate hydrodynamic bearing cartridge
- Publication number 20050100256
- Publication date May 12, 2005
- Seagate Technology LLC
- Lakshman Nagarathnam
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydrodynamic spindle motor with an internally disposed heating element
- Publication number 20020051312
- Publication date May 2, 2002
- David J. Jennings
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

David J. Jennings

Person

Patents Grantslast 30 patents

Hard disk drive with cover and cover support

Hydrodynamic spindle motor with an internally disposed heating element

Single plate hydrodynamic bearing cartridge

Apparatus for setting gaps in hydrodynamic bearing

Thermal compensation spindle for ceramic ball bearings

Annular gimbal assembly suitable for disc drive spindle bearings an...

Squeeze film damping for a hard disc drive

Air gaging for setting gaps in hydrodynamic bearings

Fluid retention principle for hydrodynamic bearings

Single plate hydrodynamic bearing with self-balancing fluid level

Device for manufacturing a groove bearing

Disc drive spindle motor having hydro bearing with optimized lubric...

Sinusoidal grooving pattern for grooved journal bearing

Low distortion interference fits for spindle motor assembly

Disc drive with self-pressurizing fluid bearing and shaft-supportin...

Hydrodynamic bearing with reduced temperature sensitivity

Single plate hydrodynamic bearing with self-balancing fluid level a...

Low distortion interference fits for spindle motor assembly

Hydrodynamic bearing assembly with single sided grooved counterplace

Single plate hydrodynamic bearing with self-balancing fluid level

Fluid retention principles for hydrodynamic bearings

Device for manufacturing a groove bearing

Single plate hydrodynamic bearing with self-balancing fluid level a...

Hub-disc interface reducing hub reloaded disc surface curvature

Patents Applicationslast 30 patents

TEMPERATURE COMPENSATING ADJUSTABLE ULTRAVIOLET LAMP DRIVER CIRCUIT...

PHOTOIONIZATION DETECTOR SENSOR WITH ADJUSTABLE GAIN

GALVANIC CURRENT PROTECTION FOR PHOTOIONIZATION DETECTOR

PHOTOIONIZATION DETECTOR HAVING IMPROVED GAIN AND REDUCED HUMIDITY...

PHOTOIONIZATION DETECTOR HAVING IMPROVED GAIN AND REDUCED HUMIDITY...

Method and apparatus for correcting image distortion

Single plate hydrodynamic bearing cartridge

Hydrodynamic spindle motor with an internally disposed heating element