Kagami; Takeo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kagami; Takeo.The latest application filed is for "magnetic head for perpendicular magnetic recording having a write shield".

Company Profile

1.53.58

Kagami; Takeo - Nagano JP
Kagami; Takeo - Tokyo JP
Kagami; Takeo - Toyko JP
Kagami; Takeo - Chuo-ku JP
Kagami; Takeo - Chou-ku 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
Circuits and methods for modifying the write current waveform to improve track density in HDD Grant 10,991,391 - Tang , et al. April 27, 2	2021-04-27
Magnetic head for perpendicular magnetic recording having a write shield Grant 8,867,168 - Ota , et al. October 21, 2	2014-10-21
Magnetic Head For Perpendicular Magnetic Recording Having A Write Shield App 20140160597 - OTA; Norikazu ; et al.	2014-06-12
Perpendicular magnetic write head and magnetic write device Grant 8,559,133 - Hirata , et al. October 15, 2	2013-10-15
Thin film magnetic head having similarly structured resistive film pattern and magnetic bias layer Grant 8,427,790 - Hirata , et al. April 23, 2	2013-04-23
Perpendicular magnetic recording head and magnetic recording device Grant 8,300,359 - Hirata , et al. October 30, 2	2012-10-30
Method of manufacturing a magneto-resistive device Grant 8,240,026 - Kagami , et al. August 14, 2	2012-08-14
Perpendicular magnetic write head and magnetic recording device Grant 8,233,237 - Anagawa , et al. July 31, 2	2012-07-31
Magnetic head, head assembly and magnetic recording/reproducing apparatus Grant 8,144,427 - Antoku , et al. March 27, 2	2012-03-27
Method of lapping a magnetic head slider Grant 8,117,736 - Ohta , et al. February 21, 2	2012-02-21
Method for testing noise of thin-film magnetic head, and magnetic disk drive apparatus with noise testing function Grant 8,085,038 - Uesugi , et al. December 27, 2	2011-12-27
Perpendicular Magnetic Write Head And Magnetic Recording Device App 20110310510 - ANAGAWA; Kenkichi ; et al.	2011-12-22
CPP-type magnetoresistance effect element having three magnetic layers Grant 8,077,436 - Hirata , et al. December 13, 2	2011-12-13
Magnetoresistive Effect Element, Thin-Film Magnetic Head, Method for Manufacturing Magnetoresistive Effect Element, and Method for Manufacturing Thin-Film Magnetic Head App 20110262632 - Kagami; Takeo ; et al.	2011-10-27
Perpendicular magnetic recording head and magnetic recording device App 20110157746 - Hirata; Kei ; et al.	2011-06-30
Manufacturing method of magnetoresistive effect element Grant 7,950,135 - Kagami , et al. May 31, 2	2011-05-31
Thin-film magnetic head and manufacturing method thereof Grant 7,916,430 - Kagami , et al. March 29, 2	2011-03-29
Magnetoresistive device having bias magnetic field applying layer that includes two magnetic layers antiferromagnetically coupled to each other through intermediate layer Grant 7,898,775 - Hirata , et al. March 1, 2	2011-03-01
Magnetoresistive element incorporating conductive film disposed on peripheral surface of layered structure including spacer layer, free layer and pinned layer, the conductive film allowing conduction between the free layer and the pinned layer Grant 7,876,537 - Uesugi , et al. January 25, 2	2011-01-25
Thin-film magnetic head having an antistatic layer preventing a protective coat from being electrostatically charged Grant 7,864,489 - Hirata , et al. January 4, 2	2011-01-04
Perpendicular magnetic write head and magnetic write device App 20100302680 - Hirata; Kei ; et al.	2010-12-02
Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device Grant 7,843,667 - Hirata , et al. November 30, 2	2010-11-30
Method of manufacturing magnetic head and method of manufacturing magnetic head substructure Grant 7,832,085 - Kagami , et al. November 16, 2	2010-11-16
Method for forming a resist pattern of magnetic device by etching with a gas cluster ion beam Grant 7,784,170 - Kagami , et al. August 31, 2	2010-08-31
Method of manufacturing a magneto-resistive device Grant 7,784,171 - Kagami , et al. August 31, 2	2010-08-31
Manufacturing method of magnetoresistive effect element Grant 7,770,284 - Ohta , et al. August 10, 2	2010-08-10
Thin-film magnetic head and manufacturing method thereof Grant 7,768,747 - Kagami , et al. August 3, 2	2010-08-03
Method and Apparatus for Lapping Magnetic Head Slider, and Manufacturing Method of Thin-Film Magnetic Head App 20100146774 - Ohta; Naoki ; et al.	2010-06-17
Magnetic Head, Head Assembly And Magnetic Recording/reproducing Apparatus App 20100123966 - ANTOKU; Yosuke ; et al.	2010-05-20
Thin-film magnetic head and manufacturing method thereof Grant 7,715,155 - Kagami , et al. May 11, 2	2010-05-11
Magnetoresistive effect thin-film magnetic head with anti-ferromagnetic layer for magnetic domain control Grant 7,692,901 - Kagami April 6, 2	2010-04-06
Composite thin-film magnetic head, magnetic head assembly and magnetic disk drive apparatus Grant 7,675,716 - Kagami , et al. March 9, 2	2010-03-09
Composite thin-film magnetic head with non-magnetic conductive layer electrically connected with lower pole layer to increase counter electrode area Grant 7,672,084 - Kagami , et al. March 2, 2	2010-03-02
TMR element having a tunnel barrier which includes crystalline portions and non-crystalline portions Grant 7,660,082 - Uesugi , et al. February 9, 2	2010-02-09
Magneto-resistive or tunneling magneto-resistive element having a shielding film of an amorphous layer above a crystalline layer, and method for manufacturing the same Grant 7,652,854 - Kagami , et al. January 26, 2	2010-01-26
Thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly, magnetic disk device and method of manufacturing thin film magnetic head App 20090323222 - Hirata; Kei ; et al.	2009-12-31
Cpp-type Magnetoresistance Effect Element Having Three Magnetic Layers App 20090237839 - Hirata; Kei ; et al.	2009-09-24
Composite Thin-Film Magnetic Head, Magnetic Head Assembly And Magnetic Disk Drive Apparatus App 20090213501 - Kagami; Takeo ; et al.	2009-08-27
Thin film magnetic head Grant 7,573,675 - Ohta , et al. August 11, 2	2009-08-11
Thin-film magnetic head comprising bias layers having a large length in track width direction Grant 7,548,400 - Kagami , et al. June 16, 2	2009-06-16
Composite thin-film magnetic head with non-magnetic conductive layer to balance parasitic capacitances Grant 7,542,245 - Kagami , et al. June 2, 2	2009-06-02
Method of manufacturing magneto-resistive device, magnetic head, head suspension assembly and magnetic disk apparatus App 20090038143 - Kagami; Takeo ; et al.	2009-02-12
Thin-film Magnetic Head And Manufacturing Method Thereof App 20090040660 - KAGAMI; Takeo ; et al.	2009-02-12
CCP Head having leads of substantially the same size and shape and not intervening between a shield layer and a MR element Grant 7,489,481 - Nagai , et al. February 10, 2	2009-02-10
Method For Testing Noise Of Thin-film Magnetic Head, And Magnetic Disk Drive Apparatus With Noise Testing Function App 20080291579 - Uesugi; Takumi ; et al.	2008-11-27
Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device App 20080291582 - Hirata; Kei ; et al.	2008-11-27
Thin-Film Magnetic Head and Manufacturing Method Thereof App 20080253036 - Kagami; Takeo ; et al.	2008-10-16
Thin-Film Magnetic Head and Manufacturing Method Thereof App 20080253037 - Kagami; Takeo ; et al.	2008-10-16
Thin-film magnetic head, head gimbal assembly and hard disk system Grant 7,436,633 - Kiyono , et al. October 14, 2	2008-10-14
Method of manufacturing magnetic head and method of manufacturing magnetic head substructure App 20080222879 - Kagami; Takeo ; et al.	2008-09-18
Method of manufacturing magnetic head App 20080222878 - Kagami; Takeo ; et al.	2008-09-18
Tunnel Magnetoresistive Effect Element With Lower Noise and Thin-Film Magnet Head Having the Element App 20080218915 - Uesugi; Takumi ; et al.	2008-09-11
CPP-type magnetoresistive element having spacer layer that includes semiconductor layer App 20080218912 - Hirata; Kei ; et al.	2008-09-11
Thin-Film Magnetic Head Having Antistatic Means for Protective Coat of Element End App 20080204938 - Hirata; Kei ; et al.	2008-08-28
Manufacturing method of a thin-film magnetic head Grant 7,398,591 - Kagami , et al. July 15, 2	2008-07-15
Magnetoresistive Effect Thin-film Magnetic Head With Anti-ferromagnetic Layer For Magnetic Domain Control App 20080144226 - Kagami; Takeo	2008-06-19
Method and apparatus for testing tunnel magnetoresistive effect element, manufacturing method of tunnel magnetoresistive effect element and tunnel magnetoresistive effect element Grant 7,372,282 - Hachisuka , et al. May 13, 2	2008-05-13
Thin-film magnetic head having a covered insulating layer Grant 7,352,539 - Sato , et al. April 1, 2	2008-04-01
Manufacturing Method Of Thin-film Magnetic Head And Thin-film Magnetic Head App 20080074800 - KAGAMI; Takeo ; et al.	2008-03-27
Magnetoresistive device having bias magnetic field applying layer that includes two magnetic layers antiferromagnetically coupled to each other through intermediate layer App 20080043370 - Hirata; Kei ; et al.	2008-02-21
Magnetoresistive effect element, thin-film magnetic head, method for manufacturing magnetoresistive effect element, and method for manufacturing thin-film magnetic head App 20080030908 - Kagami; Takeo ; et al.	2008-02-07
Magnetoresistive element incorporating conductive film disposed on peripheral surface of layered structure including spacer layer, free layer and pinned layer, the conductive film allowing conduction between the free layer and the pinned layer App 20080024934 - Uesugi; Takumi ; et al.	2008-01-31
Method of manufacturing a magneto-resistive device Grant 7,313,857 - Kanaya , et al. January 1, 2	2008-01-01
Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus Grant 7,312,961 - Kagami , et al. December 25, 2	2007-12-25
Manufacturing method of magnetoresistive effect element, manufacturing method of thin-film magnetic head and thin-film magnetic head App 20070289122 - Kagami; Takeo ; et al.	2007-12-20
Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus Grant 7,308,751 - Kagami , et al. December 18, 2	2007-12-18
Manufacturing method of magnetoresistive effect element, manufacturing method of thin-film magnetic head and thin-film magnetic head App 20070279801 - Ohta; Naoki ; et al.	2007-12-06
Method for forming a resist pattern of magnetic device App 20070215573 - Kagami; Takeo ; et al.	2007-09-20
Method of manufacturing magneto-resistive device, magnetic head, head suspension assembly and magnetic disk apparatus App 20070206334 - Kagami; Takeo ; et al.	2007-09-06
Magnetic head, head suspension assembly and magnetic disk apparatus Grant 7,253,994 - Kagami , et al. August 7, 2	2007-08-07
Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus App 20070163103 - Kagami; Takeo ; et al.	2007-07-19
Magneto-resistive device, and magnetic head, head suspension assembly and magnetic disk apparatus using magneto-resistive device Grant 7,241,514 - Kagami , et al. July 10, 2	2007-07-10
Method for forming a resist pattern of magnetic device Grant 7,231,705 - Kagami , et al. June 19, 2	2007-06-19
Method of manufacturing a magnetic head Grant 7,207,100 - Kagami , et al. April 24, 2	2007-04-24
Thin-film magnetic head having the length of the pinned and antiferromagnetic layers greater than the width dimension thereof and/or the length of the free layer Grant 7,190,559 - Kagami , et al. March 13, 2	2007-03-13
TMR element having a tunnel barrier which includes crystalline portions and non-crystalline portions App 20070053114 - Uesugi; Takumi ; et al.	2007-03-08
Magneto-resistive element, tunneling magneto-resistive element and method for manufacturing the same App 20070035886 - Kagami; Takeo ; et al.	2007-02-15
Thin-film magnetic head and method of making the same App 20070008658 - Sato; Kazuki ; et al.	2007-01-11
Composite thin-film magnetic head, magnetic head assembly and magnetic disk drive apparatus App 20060256481 - Kagami; Takeo ; et al.	2006-11-16
Method of making a thin-film magnetic head Grant 7,134,183 - Sato , et al. November 14, 2	2006-11-14
Method And Apparatus For Testing Tunnel Magnetoresistive Effect Element, Manufacturing Method Of Tunnel Magnetoresistive Effect Element And Tunnel Magnetoresistive Effect Element App 20060216837 - HACHISUKA; Nozomu ; et al.	2006-09-28
Thin film magnetic head App 20060209470 - Ohta; Naoki ; et al.	2006-09-21
Composite thin-film magnetic head, magnetic head assembly and magnetic disk drive apparatus App 20060176618 - Kagami; Takeo ; et al.	2006-08-10
Magneto-resistive device with reduced susceptibility to ion beam damage Grant 7,057,859 - Kagami , et al. June 6, 2	2006-06-06
Magnetic storage cell and magnetic memory device using same Grant 7,035,139 - Uesugi , et al. April 25, 2	2006-04-25
Thin-film magnetic head, head gimbal assembly and hard disk system App 20060082929 - Kiyono; Hiroshi ; et al.	2006-04-20
Manufacturing method of thin-film magnetic head and thin-film magnetic head App 20060067010 - Kagami; Takeo ; et al.	2006-03-30
Magneto-resistive device, and magnetic head and head suspension assembly using same Grant 6,992,870 - Kagami , et al. January 31, 2	2006-01-31
Magnetic head, head suspension assembly and magnetic disk apparatus App 20050201018 - Nagai, Kentaro ; et al.	2005-09-15
Thin-film magnetic head comprising bias layers having a large length in track width direction App 20050195536 - Kagami, Takeo ; et al.	2005-09-08
Method of manufacturing a magnetic head App 20050102821 - Kagami, Takeo ; et al.	2005-05-19
Magnetic head and method of manufacturing same, head suspension assembly and magnetic disk apparatus App 20050068691 - Kagami, Takeo ; et al.	2005-03-31
Magnetic storage cell and magnetic memory device using same App 20050018479 - Uesugi, Takumi ; et al.	2005-01-27
Magneto-resistive device, and magnetic head, head suspension assembly and magnetic disk apparatus using magneto-resistive device App 20050008849 - Kagami, Takeo ; et al.	2005-01-13
Magneto-resistive device, and magnetic head and head suspension assembly using same Grant 6,839,205 - Kagami , et al. January 4, 2	2005-01-04
Method of manufacturing magneto-resistive device, and magnetic head, head suspension assembly, and magnetic disk apparatus App 20040264068 - Kanaya, Takayasu ; et al.	2004-12-30
Thin-film magnetic head and method of manufacturing same, and method of forming a patterned thin film for a thin-film magnetic head Grant 6,822,837 - Kasahara , et al. November 23, 2	2004-11-23
Pattern forming method, method of manufacturing magneto-resistive device and magnetic head using same, and head suspension assembly and magnetic disk apparatus App 20040160700 - Kagami, Takeo ; et al.	2004-08-19
Magneto-resistive device and method of manufacturing same, magnetic head, head suspension assembly and magnetic disk apparatus App 20040150922 - Kagami, Takeo ; et al.	2004-08-05
Magnetic head, head suspension assembly and magnetic disk apparatus App 20040150921 - Kagami, Takeo ; et al.	2004-08-05
Thin-film magnetic head and method of making the same App 20040117976 - Sato, Kazuki ; et al.	2004-06-24
Thin-film magnetic head App 20040061986 - Kagami, Takeo ; et al.	2004-04-01
Magneto-resistive device, magnetic head, head suspension assembly and magnetic disk apparatus App 20040008452 - Kagami, Takeo ; et al.	2004-01-15
Manufacturing method of thin-film magnetic head with magnetoresistive effect element Grant 6,669,983 - Kagami , et al. December 30, 2	2003-12-30
Magnetic head, method of manufacturing same, and head suspension assembly App 20030099069 - Kagami, Takeo ; et al.	2003-05-29
Magneto-resistive device, and magnetic head and head suspension assembly using same App 20030086216 - Kagami, Takeo ; et al.	2003-05-08
Manufacturing method of thin-film magnetic head with magnetoresistive effect element App 20030080088 - Kagami, Takeo ; et al.	2003-05-01
Magneto-resistive device, and magnetic head and head suspension assembly using same App 20030039080 - Kagami, Takeo ; et al.	2003-02-27
Thin-film magnetic head and method of manufacturing same, and method of forming a patterned thin film for a thin-film magnetic head App 20020135951 - Kasahara, Noriaki ; et al.	2002-09-26