Inventor

Peter Baumgart

Inventor

San Jose, CA, US

Overview

1994–2021

Patent span

Physics

Primary field (CPC G)

Patents· 62 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer38%

B23KSoldering or unsoldering14%

H05GX-ray technique10%

Y10TTechnical subjects covered by former us classification7%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%

C03CChemical composition of glasses, glazes or vitreous enamels4%

B82YSpecific uses or applications of nanostructures3%

G21KHandling of particles or ionising radiation not otherwise provided for3%

C23CCoating metallic material2%

F16CShafts2%

PatentTitleYear

11,079,668Reflective display2021 10,632,505System method and apparatus for high pressure liquid jet cleaning of sintered filters2020 10,481,498Droplet generator for lithographic apparatus, EUV source and lithographic apparatus2019 10,455,680Method and apparatus for purifying target material for EUV light source2019 10,426,020Droplet generator steering system2019 9,699,876'Method of and apparatus for supply and recovery of target material'2017 9,632,418'Target material supply apparatus for an extreme ultraviolet light source'2017 9,544,983'Apparatus for and method of supplying target material'2017 9,392,678'Target material supply apparatus for an extreme ultraviolet light source'2016 9,279,445'Droplet generator steering system'2016 8,969,840'Droplet generator with actuator induced nozzle cleaning'2015 8,829,477'Droplet generator with actuator induced nozzle cleaning'2014 8,816,305'Filter for material supply apparatus'2014 8,513,629'Droplet generator with actuator induced nozzle cleaning'2013 8,238,051'Real time monitoring inconsistent operations in a hard disk drive'2012 8,149,541'System for controlling contact location during TFC touchdown and methods thereof'2012 8,098,450'Fly-height management in a hard disk drive (HDD)'2012 7,963,022'Method for joining components with shape memory alloys'2011 7,933,085'Head spacing verification in magnetic disk drive systems during end-user operation'2011 7,719,786'Active fly height control using radio frequency feedback'2010 7,660,068'Method and system for pre-contact detection and active damping of air bearing vibrations in a hard disk drive'2010 7,605,996'Method and system for detecting a change in a rotational velocity of a magnetic disk or a spindle coupled to the magnetic disk'2009 7,359,138'Method of feedback control for active damping of slider air bearing vibrations in a hard disk drive slider'2008 7,321,476'Method and system for determining contact potential in a hard disk drive'2008 7,310,197'Simultaneous measurement of contact potential and slider body clearance in a magnetic disk drive'2007 7,310,198'Measurement of slider body clearance in a magnetic disk drive using positive and negative electrical pulses'2007 7,286,314'Disk drive with localized clearance and contact potential measurement capability'2007 7,277,252'Method of feedback control for active damping of slider air bearing vibrations in a hard disk drive slider'2007 7,233,451'Method for actively controlling electric potential at the head/disk interface of a magnetic recording disk drive'2007 7,215,500'Feedback control mechanism for active damping of slider air bearing vibrations in a hard disk drive slider'2007 7,193,806'Feedback control mechanism for active damping of slider air bearing vibrations in a hard disk drive slider'2007 7,016,139'Magnetic recording disk drive with actively controlled electric potential at the head/disk interface for wear and durability control'2006 6,967,818'Disk drive head with radially spaced read and write elements on respective protrusion pads'2005 6,466,408'Storage system slider having trailing edge pad and method for making the same'2002 6,388,229'Method for laser texturing magnetic recording disk'2002 6,246,543'Textured data storage disk having a brittle nonmetallic substrate'2001 RE037145'Apparatus for laser texturing disks'2001 6,205,002'Disk drive with textured slider contact region'2001 6,118,632'Magnetic disk stack having laser-bump identifiers on magnetic disks'2000 6,107,599'Method and tool for laser texturing of glass substrates'2000 6,059,555'Optical apparatus for dual-beam laser texturing'2000 6,013,336'Procedure employing a diode-pumped laser for controllably texturing a disk surface'2000 5,981,903'Laser system for simultaneous texturing of two sides of a substrate'1999 5,963,569'Multiple channel acousto-optic modulators'1999 5,951,891'Optical apparatus for monitoring profiles of textured spots during a disk texturing process'1999 5,940,304'Controlling a laser texturing tool having two handling stations for disks to be textured and a single texturing station'1999 5,910,262'Method and tool for laser texturing of glass substrates'1999 5,875,084'Magnetic recording disk having protrusions centered in respective depressions'1999 5,830,514'Controlling pulses in a laser texturing tool'1998 5,822,211'Laser texturing apparatus with dual laser paths having an independently adjusted parameter'1998 5,790,433'Method for controlling laser power in a texturing process'1998 5,768,076'Magnetic recording disk having a laser-textured surface'1998 5,699,160'Optical apparatus for inspecting laser texture'1997 5,689,057'Calibration disk with disk bumps for calibrating PZT sliders'1997 5,658,475'Apparatus for laser texturing disks'1997 5,631,408'Method of making disk bumps with laser pulses'1997 5,595,791'Process for texturing brittle glass disks'1997 5,586,040'Process and apparatus for controlled laser texturing of magnetic recording disk'1996 5,574,605'Antiferromagnetic exchange coupling in magnetoresistive spin valve sensors'1996 5,567,484'Process for texturing brittle nonmetallic surfaces'1996 5,528,922'Method of making disk bumps with laser pulses for calibrating PZT sliders'1996 5,287,238'Dual spin valve magnetoresistive sensor'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2002Patents assigned to IBM (29)· patent assignee history

1994–2012Based in San Jose, CA, US· patent location history

2005–2010Patents assigned to HITACHI GLOBAL STORAGE TECH (13)· patent assignee history

2010Based in Santa Clara, CA, US· patent location history

2011–2012Patents assigned to HITACHI GLOBAL STORAGE TECH NL (5)· patent assignee history

2012–2014Patents assigned to BAUMGART PETER (3)· patent assignee history

2013–2019Based in San Diego, CA, US· patent location history

2014–2020Patents assigned to ASML NETHERLANDS BV (12)· patent assignee history

2019–2021Based in Pleasanton, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IBM	29	1994–2002
HITACHI GLOBAL STORAGE TECH	13	2005–2010
ASML NETHERLANDS BV	12	2014–2020
HITACHI GLOBAL STORAGE TECH NL	5	2011–2012
BAUMGART PETERself	3	2012–2014

Locations

Location	Patents	Span
San Jose, California, US	47	1994–2012
San Diego, California, US	11	2013–2019
Pleasanton, California, US	3	2019–2021
Santa Clara, California, US	1	2010