Inventor

Edwin R. Childers

Inventor

Tucson, AZ, US

Overview

37→

Patents

1991–2020

Patent span

Physics

Primary field (CPC G)

Patents· 37 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 transducer90%

G02BOptical elements, systems or apparatus3%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%

H02KDynamo-electric machines3%

LOC143%

PatentTitleYear

10,777,221Segmented magnetic recording write head for writing timing-based servo patterns2020 10,580,452Detecting media defects2020 10,262,682Segmented magnetic recording write head for writing timing-based servo patterns2019 10,236,024Segmented magnetic recording write head for detection-based servo pattern writing2019 10,176,830Segmented magnetic recording write head for writing timing-based servo patterns2019 10,102,877Detecting media defects2018 10,020,014Segmented magnetic recording write head for detection-based servo pattern writing2018 9,934,804Segmented magnetic recording write head for detection-based servo pattern writing2018 9,852,747Segmented magnetic recording write head for writing timing-based servo patterns2017 9,653,114'Detecting media defects'2017 9,472,221'Adjustable spacing formatter head'2016 9,373,346'Adjustable spacing formatter head'2016 8,896,948'Customizing a range of acceptable tape dimensional stability write conditions'2014 8,711,501'Customizing a range of acceptable tape dimensional stability write conditions'2014 8,587,890'Tape drive provided write format for overwrite erasure of magnetic tape data recorded in tracks'2013 8,094,402'Systems and methods for correcting magnetic tape dimensional instability'2012 7,724,466'Method and system for servo stripe width detection and compensation'2010 6,906,873'Apparatus and method to monitor leader pin position'2005 6,900,964'Data-cartridge case adapted for dual-format applications'2005 6,802,469'Tape cartridge comprising a reel lock mechanism'2004 6,755,367'Sensing position of pin on tape inside cartridge shell'2004 6,754,033'Tape surface constraint of lateral transients'2004 D0470498'Data cartridge'2003 5,979,814'Invertible portable container having two separate lengths of recording tape'1999 5,906,324'Single reel tape cartridge with integral tape guide'1999 5,610,902'Adapter cartridge and caddy combination for hubless optical disk'1997 5,579,297'Optical data storage cartridge having a dual shutter configuration and shutter hinge device'1996 5,563,871'Rotary actuator with a magnetic bias bearing configuration for rotating an optical element in an optical data storage system'1996 5,499,233'Optical disk carrier with write-protect mechanism'1996 5,444,690'Leaf spring lock for a carriage in a media player that is actuated by the carriage and position of a cartridge'1995 5,331,627'Cartridge adaptor'1994 5,289,319'Apparatus and method for detecting physical orientation of a position system and for calibrating an optimum control for the system that is usable in optical disk recorders'1994 5,268,808'Disk cartridges made from unitary blanks'1993 5,235,574'Optical disk drive relative position sensor'1993 5,218,585'Phase shifting feedback control in an optical disk drive'1993 5,097,361'Controlling position of a rotatable transducer in devices employing such transducers'1992 5,046,819'Objective lens support having rotary and axial motions for use in an optical disk apparatus'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2020Patents assigned to IBM (37)· patent assignee history

1991–2020Based in Tucson, AZ, US· patent location history

2012Patents assigned to BUI NHAN X (1)· patent assignee history

2013–2014Patents assigned to CHILDERS EDWIN RALPH (2)· patent assignee history

2013–2014Patents assigned to HANCOCK REED ALAN (2)· patent assignee history

2013Patents assigned to BUI NHAN XUAN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IBM	37	1991–2020
CHILDERS EDWIN RALPHself	2	2013–2014
HANCOCK REED ALAN	2	2013–2014
BUI NHAN X	1	2012
BUI NHAN XUAN	1	2013

Locations

Location	Patents	Span
Tucson, AZ, US	37	1991–2020