Leng; Qunwen

Patent Applications and Registrations

Patent applications and USPTO patent grants for Leng; Qunwen.The latest application filed is for "mems microphone".

Company Profile

4.67.19

Leng; Qunwen - Weifang CN
Leng; Qunwen - Weifang City Shandong
Leng; Qunwen - Palo Alto CA
Leng; Qunwen - San Jose CA

*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
Microphone Grant 11,297,441 - Zou , et al. April 5, 2	2022-04-05
MEMS microphone Grant 11,102,586 - Zou , et al. August 24, 2	2021-08-24
Mems Microphone App 20200267480 - Zou; Quanbo ; et al.	2020-08-20
Microphone App 20200236471 - Zou; Quanbo ; et al.	2020-07-23
Magnetic reader having a nonmagnetic insertion layer for the pinning layer Grant 10,242,700 - Jones , et al.	2019-03-26
Free layer magnetic reader that may have a reduced shield-to-shield spacing Grant 10,121,501 - Bertero , et al. November 6, 2	2018-11-06
Recording read heads with a multi-layer AFM layer methods and apparatuses Grant 10,008,219 - Zheng , et al. June 26, 2	2018-06-26
Magnetic Reader Having A Nonmagnetic Insertion Layer For The Pinning Layer App 20180075869 - JONES; Joshua ; et al.	2018-03-15
Method for providing a multilayer AFM layer in a read sensor Grant 9,858,951 - Zheng , et al. January 2, 2	2018-01-02
Magnetic reader having a nonmagnetic insertion layer for the pinning layer Grant 9,842,615 - Jones , et al. December 12, 2	2017-12-12
Magnetic read head with antiferromagentic layer Grant 9,830,936 - Li , et al. November 28, 2	2017-11-28
Apparatuses and methods for providing thin shields in a multiple sensor array Grant 9,786,301 - Li , et al. October 10, 2	2017-10-10
Free Layer Magnetic Reader That May Have A Reduced Shield-to-shield Spacing App 20170249959 - BERTERO; GERARDO A. ; et al.	2017-08-31
Read sensor having an insulating layer capable of use in two-dimensional magnetic recording Grant 9,715,889 - Li , et al. July 25, 2	2017-07-25
Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropy Grant 9,705,072 - Li , et al. July 11, 2	2017-07-11
Free layer magnetic reader that may have a reduced shield-to-shield spacing Grant 9,666,214 - Bertero , et al. May 30, 2	2017-05-30
Magnetic reader having a crystal decoupling structure Grant 9,508,365 - Zheng , et al. November 29, 2	2016-11-29
Recording Read Heads With A Multi-layer Afm Layer Methods And Apparatuses App 20160260447 - ZHENG; YUANKAI ; et al.	2016-09-08
Electrical connection arrangement for a multiple sensor array usable in two-dimensional magnetic recording Grant 9,431,032 - Li , et al. August 30, 2	2016-08-30
Multiple sensor array usable in two-dimensional magnetic recording Grant 9,431,039 - Li , et al. August 30, 2	2016-08-30
Magnetoresistive sensor for a magnetic storage system read head, and fabrication method thereof Grant 9,396,742 - Yang , et al. July 19, 2	2016-07-19
Magnetic Read Head With Antiferromagentic Layer App 20160180870 - LI; SHAOPING ; et al.	2016-06-23
Spin Transfer Torque Tunneling Magnetoresistive Device Having A Laminated Free Layer With Perpendicular Magnetic Anisotropy App 20160163961 - Li; Shaoping ; et al.	2016-06-09
Recording read heads with a multi-layer AFM layer methods and apparatuses Grant 9,361,913 - Zheng , et al. June 7, 2	2016-06-07
Magnetic sensor with thin capping layer Grant 9,361,914 - Kaiser , et al. June 7, 2	2016-06-07
Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropy Grant 9,236,560 - Li , et al. January 12, 2	2016-01-12
Heated Afm Layer Deposition And Cooling Process For Tmr Magnetic Recording Sensor With High Pinning Field App 20150380026 - ZHENG; YUANKAI ; et al.	2015-12-31
Method of manufacturing a magnetic read head Grant 9,214,172 - Li , et al. December 15, 2	2015-12-15
Magnetic recording read transducer having a laminated free layer Grant 9,214,169 - Kaiser , et al. December 15, 2	2015-12-15
Method and system for providing a magnetic transducer having improved shield-to-shield spacing Grant 9,214,168 - Park , et al. December 15, 2	2015-12-15
Heated AFM layer deposition and cooling process for TMR magnetic recording sensor with high pinning field Grant 9,147,408 - Zheng , et al. September 29, 2	2015-09-29
Methods for manufacturing a magnetoresistive structure utilizing heating and cooling Grant 9,093,639 - Kaiser , et al. July 28, 2	2015-07-28
Magnetic recording read transducer having a laminated free layer Grant 9,070,381 - Yang , et al. June 30, 2	2015-06-30
Process for providing a magnetic recording transducer with enhanced pinning layer stability Grant 9,064,534 - Zheng , et al. June 23, 2	2015-06-23
Magnetoresistive sensor for a magnetic storage system read head, and fabrication method thereof Grant 9,053,719 - Yang , et al. June 9, 2	2015-06-09
Methods for providing magnetic storage elements with high magneto-resistance using Heusler alloys Grant 9,042,057 - Diao , et al. May 26, 2	2015-05-26
Magnetic Read Head With Antiferromagnetic Layer App 20150109702 - LI; SHAOPING ; et al.	2015-04-23
Sensor with positive coupling between dual ferromagnetic free layer laminates Grant 9,007,725 - Diao , et al. April 14, 2	2015-04-14
Method for fabricating a magnetic recording transducer Grant 9,003,640 - Park , et al. April 14, 2	2015-04-14
Process for providing a magnetic recording transducer having a smooth magnetic seed layer Grant 8,984,740 - Zheng , et al. March 24, 2	2015-03-24
Electric gaps and method for making electric gaps for multiple sensor arrays Grant 8,970,988 - Li , et al. March 3, 2	2015-03-03
Systems and methods for providing magnetic storage elements with high magneto-resistance using heusler alloys Grant 8,760,818 - Diao , et al. June 24, 2	2014-06-24
Method and system for providing an improved sensor stack for a recording head Grant 8,755,152 - Park , et al. June 17, 2	2014-06-17
Magnetoresistive Sensor For A Magnetic Storage System Read Head, And Fabrication Method Thereof App 20140154529 - YANG; Cheng-Han ; et al.	2014-06-05
Method and system for providing a magnetic read transducer having a bilayer magnetic seed layer Grant 8,638,529 - Leng , et al. January 28, 2	2014-01-28
Magnetic sensor having a high spin polarization reference layer Grant 8,582,253 - Zheng , et al. November 12, 2	2013-11-12
Method and system for providing a spin tunneling magnetic element having a crystalline barrier layer Grant 8,547,730 - Shen , et al. October 1, 2	2013-10-01
Method and system for providing a magnetoresistive structure Grant 8,545,999 - Leng , et al. October 1, 2	2013-10-01
Method and system for providing a magnetic transducer having improved shield-to-shield spacing Grant 8,537,502 - Park , et al. September 17, 2	2013-09-17
Methods For Manufacturing A Magnetoresistive Structure Utilizing Heating And Cooling App 20130216702 - KAISER; CHRISTIAN ; et al.	2013-08-22
Magnetoresistive sensors having an improved free layer Grant 8,498,084 - Leng , et al. July 30, 2	2013-07-30
Method and system for providing a magnetic read transducer having an improved signal to noise ratio Grant 8,493,695 - Kaiser , et al. July 23, 2	2013-07-23
Perpendicular magnetic recording transducer with AFM insertion layer Grant 8,493,693 - Zheng , et al. July 23, 2	2013-07-23
Method and system for providing a magnetic read transducer having a bilayer magnetic seed layer Grant 8,422,176 - Leng , et al. April 16, 2	2013-04-16
Method for providing a magnetic recording transducer Grant 8,381,391 - Park , et al. February 26, 2	2013-02-26
Method and system for providing a read sensor having a low magnetostriction free layer Grant 8,194,365 - Leng , et al. June 5, 2	2012-06-05
Method and system for fabricating magnetic transducers with improved pinning Grant 8,164,864 - Kaiser , et al. April 24, 2	2012-04-24
Method and system for providing a magnetic transducer having an improved read sensor synthetic antiferromagnet Grant 8,116,043 - Leng , et al. February 14, 2	2012-02-14
Method And System For Providing A Magnetic Transducer Having An Improved Read Sensor App 20110135961 - LENG; QUNWEN ; et al.	2011-06-09
Method And System For Fabricating Magnetic Transducers With Improved Pinning App 20110013317 - KAISER; CHRISTIAN ; et al.	2011-01-20
Method And System For Providing A Barrier For A Magnetoresistive Structure Utilizing Heating App 20100328822 - PARK; CHANDO ; et al.	2010-12-30
Method and system for providing a spin tunneling magnetic element having a crystalline barrier layer Grant 7,695,761 - Shen , et al. April 13, 2	2010-04-13
Integrated optical multiplexer and demultiplexer Grant 7,218,451 - Lee , et al. May 15, 2	2007-05-15
Integrated optical multiplexer and demultiplexer App 20060018204 - Lee; Jerry ; et al.	2006-01-26
System and method for optical multiplexing and/or demultiplexing Grant 6,914,676 - Richard , et al. July 5, 2	2005-07-05
System and method for optical multiplexing and/or demultiplexing Grant 6,847,450 - Richard , et al. January 25, 2	2005-01-25
Optical subassembly with port configuration Grant 6,836,590 - Richard , et al. December 28, 2	2004-12-28
Method for manufacturing a GMR spin valve having a smooth interface between magnetic and non-magnetic layers Grant 6,756,071 - Shi , et al. June 29, 2	2004-06-29
Optical subassembply with port configuration App 20040017970 - Richard, Jenkin A. ; et al.	2004-01-29
System and method for optical multiplexing and/or demultiplexing App 20030048443 - Richard, Jenkin A. ; et al.	2003-03-13
Method and system for providing edge-junction TMR utilizing a hard magnet as a pinned layer Grant 6,515,573 - Dong , et al. February 4, 2	2003-02-04
System and method for optical multiplexing and/or demultiplexing App 20030020913 - Richard, Jenkin A. ; et al.	2003-01-30
Method for manufacturing a GMR spin valve having a smooth interface between magnetic and non-magnetic layers Grant 6,479,096 - Shi , et al. November 12, 2	2002-11-12
Read sensor with improved thermal stability and manufacturing method therefor Grant 6,277,505 - Shi , et al. August 21, 2	2001-08-21

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