Allen; Donald G.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Allen; Donald G..The latest application filed is for "shield with uniform magnetic properties for a perpendicular magnetic recording head".

Company Profile

0.17.18

Allen; Donald G. - Morgan Hill CA
Allen; Donald G. - Franklin IN
Allen; Donald G. - Dayton NV

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Shield with uniform magnetic properties for a perpendicular magnetic recording head Grant 9,412,398 - Allen , et al. August 9, 2	2016-08-09
Shield With Uniform Magnetic Properties For A Perpendicular Magnetic Recording Head App 20150056473 - Allen; Donald G. ; et al.	2015-02-26
Magnetic write head manufactured by an enhanced damascene process producing a tapered write pole with a non-magnetic spacer and non-magnetic bump Grant 8,547,660 - Allen , et al. October 1, 2	2013-10-01
Magnetic head with flared write pole having multiple tapered regions Grant 8,498,078 - Allen , et al. July 30, 2	2013-07-30
Method For Manufacturing A Perpendicular Magnetic Write Head Using Novel Reactive Ion Etching Chemistry App 20130082027 - Mao; Guomin ; et al.	2013-04-04
Magnetic Write Head Having An Electroplated Write Pole With A Leading Edge Taper App 20130020204 - Allen; Donald G. ; et al.	2013-01-24
Write head with different upper and lower yoke lengths and methods for making the same Grant 8,218,263 - Allen , et al. July 10, 2	2012-07-10
Write Head With Rotational Write Field App 20120162821 - Lam; Quan-Chiu Harry ; et al.	2012-06-28
Method for manufacturing a magnetic write head having a wrap around shield that is magnetically coupled with a leading magnetic shield Grant 8,201,320 - Allen , et al. June 19, 2	2012-06-19
Method For Manufacturing A Magnetic Write Head Having A Wrap Around Shield That Is Magnetically Coupled With A Leading Magnetic Shield App 20110146062 - Allen; Donald G. ; et al.	2011-06-23
Magnetic Write Head Manufactured By An Enhanced Damascene Process Producing A Tapered Write Pole With A Non-magnetic Spacer And Non-magnetic Bump App 20110151279 - Allen; Donald G. ; et al.	2011-06-23
Pmr Writer And Method Of Fabrication App 20110134569 - Allen; Donald G. ; et al.	2011-06-09
Layered return poles for magnetic write heads Grant 7,933,096 - Allen , et al. April 26, 2	2011-04-26
Method of manufacturing a perpendicular magnetic recording write head with notched trailing shield Grant 7,748,103 - Allen , et al. July 6, 2	2010-07-06
Write Head With Different Upper And Lower Yoke Lengths And Methods For Making The Same App 20100157471 - Allen; Donald G. ; et al.	2010-06-24
Perpendicular magnetic recording head with photoresist dam between write coil and air bearing surface Grant 7,612,963 - Allen , et al. November 3, 2	2009-11-03
Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge Grant 7,576,951 - Allen , et al. August 18, 2	2009-08-18
Layered return poles for magnetic write heads App 20090168260 - Allen; Donald G. ; et al.	2009-07-02
Method for making a perpendicular magnetic recording write head Grant 7,509,729 - Allen , et al. March 31, 2	2009-03-31
Interleaved Helical Coils On Perpendicular Heads App 20090057160 - Allen; Donald G. ; et al.	2009-03-05
Damascene coil design for a perpendicular magnetic recording head App 20080002290 - Allen; Donald G. ; et al.	2008-01-03
Perpendicular Magnetic Recording Write Head With Notched Trailing Shield And Method For Making App 20070263324 - Allen; Donald G. ; et al.	2007-11-15
Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge App 20070258167 - Allen; Donald G. ; et al.	2007-11-08
Method For Making A Perpendicular Magnetic Recording Write Head App 20070245544 - Allen; Donald G. ; et al.	2007-10-25
Prevention of electrostatic wafer sticking in plasma deposition/etch tools Grant 7,030,035 - Allen , et al. April 18, 2	2006-04-18
Prevention of electrostatic wafer sticking in plasma deposition/etch tools App 20050255705 - Allen, Donald G. ; et al.	2005-11-17
Cam driven paddle assembly for a plating cell Grant 6,955,747 - Browne , et al. October 18, 2	2005-10-18
Cam driven paddle assembly for a plating cell App 20040055876 - Browne, Robert M. ; et al.	2004-03-25
Component-support fixtures for component assembly system Grant 6,145,212 - Geise , et al. November 14, 2	2000-11-14
Method and apparatus for preventing write operations in the presence of post-shock motion Grant 6,115,200 - Allen , et al. September 5, 2	2000-09-05
Medication carrier Grant D253,722 - Allen December 18, 1	1979-12-18

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