Nagasawa; Tazumi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Nagasawa; Tazumi.The latest application filed is for "magnetic head and magnetic recording device".

Company Profile

13.49.53

Nagasawa; Tazumi - Yokohama JP
Nagasawa; Tazumi - Kanagawa JP
Nagasawa; Tazumi - Yokohama Kanagawa JP
Nagasawa; Tazumi - Yokohama-shi JP
Nagasawa; Tazumi - Kanagawa-ken N/A JP

*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
Magnetic head and magnetic recording device including a stacked body having a first magnetic member and a second magnetic member Grant 11,443,762 - Iwasaki , et al. September 13, 2	2022-09-13
Magnetic head and magnetic recording device with stacked body material configurations Grant 11,437,059 - Iwasaki , et al. September 6, 2	2022-09-06
Magnetic Head And Magnetic Recording Device App 20220270641 - NAKAGAWA; Yuji ; et al.	2022-08-25
Magnetic Head And Magnetic Recording Device App 20220270640 - NAKAGAWA; Yuji ; et al.	2022-08-25
Magnetic head with stacked body having non-magnetic layers and differing length magnetic layers Grant 11,398,244 - Takagishi , et al. July 26, 2	2022-07-26
Magnetic head and magnetic recording device Grant 11,393,493 - Nakagawa , et al. July 19, 2	2022-07-19
Magnetic head including stacked body with changing electrical resistance and magnetic recording device including same Grant 11,380,352 - Iwasaki , et al. July 5, 2	2022-07-05
Magnetic head for high density magnetic recording device Grant 11,348,606 - Iwasaki , et al. May 31, 2	2022-05-31
Magnetic Head And Magnetic Recording Device App 20220157335 - IWASAKI; Hitoshi ; et al.	2022-05-19
Magnetic Recording Device And Magnetic Recording Method App 20220157336 - SUTO; Hirofumi ; et al.	2022-05-19
Evaluation Method Of Magnetic Head And Evaluation Device Of Magnetic Head App 20220122632 - SUTO; Hirofumi ; et al.	2022-04-21
Magnetic Head And Magnetic Recording Device App 20220068299 - IWASAKI; Hitoshi ; et al.	2022-03-03
Magnetic Head And Magnetic Recording Device App 20220005497 - TAKAGISHI; Masayuki ; et al.	2022-01-06
Magnetic head including stacked body having plural of intermediate layers and magnetic recording device including same Grant 11,217,272 - Suto , et al. January 4, 2	2022-01-04
Magnetic Head And Magnetic Recording Device App 20210375308 - NAGASAWA; Tazumi ; et al.	2021-12-02
Magnetic Head And Magnetic Recording Device App 20210375309 - IWASAKI; Hitoshi ; et al.	2021-12-02
Magnetic head and magnetic recording device having magnetic layers and non-magnetic layers between shield and magnetic pole Grant 11,138,994 - Nagasawa , et al. October 5, 2	2021-10-05
Magnetic head including plural magnetic layers and plural intermediate layers and magnetic recording device Grant 11,087,781 - Takagishi , et al. August 10, 2	2021-08-10
Magnetic Head And Magnetic Recording Device App 20210217440 - SUTO; Hirofumi ; et al.	2021-07-15
Magnetic head having specific distance between magnetic pole, stacked body, and first shield, and magnetic recording device including same Grant 11,062,728 - Takagishi , et al. July 13, 2	2021-07-13
Method for evaluating magnetic head and evaluation apparatus of magnetic head Grant 11,062,730 - Suto , et al. July 13, 2	2021-07-13
Magnetic Head And Magnetic Recording Device App 20210142821 - IWASAKI; Hitoshi ; et al.	2021-05-13
Magnetic head Grant 11,004,464 - Suto , et al. May 11, 2	2021-05-11
Magnetic recording device Grant 10,978,098 - Narita , et al. April 13, 2	2021-04-13
Magnetic Head And Magnetic Recording Device App 20210104257 - IWASAKI; Hitoshi ; et al.	2021-04-08
Magnetic Head And Magnetic Recording Device App 20210074319 - TAKAGISHI; Masayuki ; et al.	2021-03-11
Magnetic Head And Magnetic Recording Device App 20210074320 - TAKAGISHI; Masayuki ; et al.	2021-03-11
Magnetic head having a magnetic layer and first and second conductive layers provided between a shield and a magnetic pole and magnetic recording and reproducing device Grant 10,902,869 - Suto , et al. January 26, 2	2021-01-26
Method For Evaluating Magnetic Head And Evaluation Apparatus Of Magnetic Head App 20200411040 - SUTO; Hirofumi ; et al.	2020-12-31
Magnetic head with conductive layer configurations between magnetic pole and shield and magnetic recording and reproducing device Grant 10,811,037 - Suto , et al. October 20, 2	2020-10-20
Magnetic Head And Magnetic Recording Device App 20200294537 - NAGASAWA; Tazumi ; et al.	2020-09-17
Magnetic Head And Magnetic Recording And Reproducing Device App 20200168244 - SUTO; Hirofumi ; et al.	2020-05-28
Magnetic head and magnetic recording and reproducing device Grant 10,607,638 - Yamagishi , et al.	2020-03-31
Magnetic Head And Magnetic Recording And Reproducing Device App 20200082845 - SUTO; Hirofumi ; et al.	2020-03-12
Magnetic Head And Magnetic Recording And Reproducing Device App 20200075048 - YAMAGISHI; Michinaga ; et al.	2020-03-05
Oscillator and calculating device Grant 10,522,172 - Nagasawa , et al. Dec	2019-12-31
Magnetic head and magnetic recording and reproducing device Grant 10,504,544 - Yamagishi , et al. Dec	2019-12-10
Magnetic head with spin torque oscillator connection configuration Grant 10,424,325 - Suto , et al. Sept	2019-09-24
Magnetic Head And Magnetic Recording And Reproducing Device App 20190272849 - Yamagishi; Michinaga ; et al.	2019-09-05
Magnetic recording medium including multiple magnetic layers with multiple regions having aligned easy magnetization axes and magnetic recording and reproducing device Grant 10,210,894 - Suto , et al. Feb	2019-02-19
Oscillator And Calculating Device App 20180374502 - NAGASAWA; Tazumi ; et al.	2018-12-27
Perpendicular magnetic recording and reproducing device Grant 10,127,931 - Suto , et al. November 13, 2	2018-11-13
Microwave Sensor And Microwave Imaging Device App 20180267087 - NAGASAWA; Tazumi ; et al.	2018-09-20
Magnetic Head And Magnetic Recording And Reproducing Device App 20180204589 - SUTO; Hirofumi ; et al.	2018-07-19
Computing apparatus and computing method Grant 10,027,334 - Kanao , et al. July 17, 2	2018-07-17
Magnetic recording and reproducing apparatus and magnetic recording and reproducing method Grant 9,984,723 - Nagasawa , et al. May 29, 2	2018-05-29
Magnetic Recording And Reproducing Apparatus And Magnetic Recording And Reproducing Method App 20170294207 - NAGASAWA; Tazumi ; et al.	2017-10-12
Computing Apparatus And Computing Method App 20170272087 - KANAO; Taro ; et al.	2017-09-21
Magnetic Recording And Reproducing Device App 20170256273 - SUTO; Hirofumi ; et al.	2017-09-07
Multi-level magnetic recording apparatus utilizing cooperative magnetization dynamics induced by spin-torque oscillator Grant 9,704,552 - Kudo , et al. July 11, 2	2017-07-11
Magnetic Recording Medium And Magnetic Recording And Reproducing Device App 20170061999 - SUTO; Hirofumi ; et al.	2017-03-02
Magnetic recording head and magnetic recording apparatus Grant 9,437,218 - Kudo , et al. September 6, 2	2016-09-06
Magnetic Recording Apparatus App 20160180906 - KUDO; Kiwamu ; et al.	2016-06-23
Magnetic Recording Head And Magnetic Recording Apparatus App 20160027455 - KUDO; Kiwamu ; et al.	2016-01-28
Magnetic recording apparatus Grant 9,159,342 - Kudo , et al. October 13, 2	2015-10-13
Magnetic recording and reproducing apparatus Grant 9,070,389 - Kudo , et al. June 30, 2	2015-06-30
Three-dimensional magnetic recording and reproducing apparatus including a plurality of magnetic layers having different resonant frequencies Grant 9,001,466 - Sato , et al. April 7, 2	2015-04-07
Magnetic Recording Apparatus App 20150077883 - KUDO; Kiwamu ; et al.	2015-03-19
Magnetic oscillator Grant 8,982,514 - Nagasawa , et al. March 17, 2	2015-03-17
Spin-torque oscillator Grant 8,947,170 - Yang , et al. February 3, 2	2015-02-03
Magnetic Recording And Reproducing Apparatus App 20140376129 - Kudo; Kiwamu ; et al.	2014-12-25
Magnetic head with a spin torque oscillator, magnetic sensor, and magnetic recording/reproducing apparatus Grant 8,896,973 - Nagasawa , et al. November 25, 2	2014-11-25
Magnetic medium and writing and reading method Grant 8,861,120 - Yang , et al. October 14, 2	2014-10-14
Magnetic Storage Medium And Magnetic Recording Apparatus App 20140247520 - YANG; Tao ; et al.	2014-09-04
Reproducing head with spin-torque oscillator, and magnetic recording and reproducing apparatus Grant 8,755,153 - Kudo , et al. June 17, 2	2014-06-17
Nonvolatile memory device Grant 8,737,122 - Saida , et al. May 27, 2	2014-05-27
High-frequency magnetic field generation element and magnetic head Grant 8,724,261 - Suto , et al. May 13, 2	2014-05-13
Magnetic Oscillator App 20130278346 - NAGASAWA; Tazumi ; et al.	2013-10-24
Magnetic oscillator Grant 8,553,372 - Nagasawa , et al. October 8, 2	2013-10-08
High-frequency Magnetic Field Generation Element And Magnetic Head App 20130120875 - SUTO; Hirofumi ; et al.	2013-05-16
Magnetic Head, Magnetic Sensor, And Magnetic Recording/reproducing Apparatus App 20130107395 - Nagasawa; Tazumi ; et al.	2013-05-02
Nonvolatile Memory Device App 20130070522 - Saida; Daisuke ; et al.	2013-03-21
Magnetic Medium And Writing And Reading Method App 20130070361 - Yang; Tao ; et al.	2013-03-21
Spin-torque Oscillator App 20130069730 - Yang; Tao ; et al.	2013-03-21
Reproducing Head With Spin-torque Oscillator, And Magnetic Recording And Reproducing Apparatus App 20130065086 - Kudo; Kiwamu ; et al.	2013-03-14
Three-dimensional Magnetic Recording And Reproducing Apparatus App 20120224283 - SATO; Rie ; et al.	2012-09-06
Magnetic Oscillator App 20120218667 - NAGASAWA; Tazumi ; et al.	2012-08-30
Magnetic oscillation element Grant 8,207,806 - Kudo , et al. June 26, 2	2012-06-26
Spin-torque oscillator, magnetic head including the spin-torque oscillator, and magnetic recording and reproducing apparatus Grant 8,194,361 - Kudo , et al. June 5, 2	2012-06-05
Spin-torque oscillator, a magnetic sensor and a magnetic recording system Grant 8,174,798 - Nagasawa , et al. May 8, 2	2012-05-08
Magnetic Oscillation Element App 20120032763 - KUDO; Kiwamu ; et al.	2012-02-09
Magnetic recording and reproducing apparatus having a magnetic read head with a spin-torque oscillator Grant 7,940,485 - Kudo , et al. May 10, 2	2011-05-10
Spin-torque Oscillator, A Magnetic Sensor And A Magnetic Recording System App 20100079919 - Nagasawa; Tazumi ; et al.	2010-04-01
Magnetic Recording And Reproducing Apparatus Having A Magnetic Read Head With A Spin-torque Oscillator App 20100053795 - Kudo; Kiwamu ; et al.	2010-03-04
Spin-torque Oscillator, Magnetic Head Including The Spin-torque Oscillator, And Magnetic Recording And Reproducing Apparatus App 20090201614 - Kudo; Kiwamu ; et al.	2009-08-13
Particle Deposition Apparatus And Particle Deposition Method App 20080254230 - MATSUI; Isao ; et al.	2008-10-16

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