Iwakura; Tadayuki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Iwakura; Tadayuki.The latest application filed is for "perpendicular magnetic recording head and magnetic recording device suitable for high-density magnetic recording".

Company Profile

0.17.18

Iwakura; Tadayuki - Kanagawa JP
Iwakura; Tadayuki - Odawara JP
Iwakura; Tadayuki - Odawara-shi JP
Iwakura; Tadayuki - Fujisawa JP
Iwakura, Tadayuki - Fujisawa-shi JP
Iwakura; Tadayuki - Hitachi 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
Perpendicular magnetic write head having a controlled magnetization state shield Grant 9,230,566 - Iwakura , et al. January 5, 2	2016-01-05
Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording Grant 8,542,462 - Maruyama , et al. September 24, 2	2013-09-24
Magnetic head having write pole, first soft magnetic films separately disposed on both sides of the main pole, and a second soft magnetic film disposed on a trailing side of the main pole Grant 8,300,358 - Maruyama , et al. October 30, 2	2012-10-30
Perpendicular recording magnetic head Grant 8,054,580 - Kimura , et al. November 8, 2	2011-11-08
Magnetic head for perpendicular recording having pole pieces provided on surface of soft magnetic film Grant 8,000,058 - Iwakura , et al. August 16, 2	2011-08-16
Perpendicular Magnetic Recording Head And Magnetic Recording Device Suitable For High-density Magnetic Recording App 20110002063 - Maruyama; Yohji ; et al.	2011-01-06
Magnetic Head For Perpendicular Recording And Magnetic Recording Apparatus App 20090290257 - Kimura; Wataru ; et al.	2009-11-26
Magnetic write head including a magnetic pole piece having a protrusion Grant 7,576,952 - Maruyama , et al. August 18, 2	2009-08-18
Main pole structure coupled with trailing gap for perpendicular recording Grant 7,551,395 - Maruyama , et al. June 23, 2	2009-06-23
Magnetic head having first and second protective films with different coefficients of linear expansion Grant 7,460,335 - Maruyama , et al. December 2, 2	2008-12-02
Perpendicular recording magnetic head App 20080231994 - Kimura; Wataru ; et al.	2008-09-25
Magnetic head and method of manufacturing the same App 20080198507 - Maruyama; Yoji ; et al.	2008-08-21
Thin film magnetic head and magnetic disk apparatus including the same Grant 7,382,576 - Okada , et al. June 3, 2	2008-06-03
Separate read/write magnetic head Grant 7,262,940 - Iwakura , et al. August 28, 2	2007-08-28
Main pole structure coupled with trailing gap for perpendicular recording App 20070019327 - Maruyama; Yoji ; et al.	2007-01-25
Magnetic head and magnetic recording/retrieving apparatus using the same App 20060198056 - Maruyama; Yohji ; et al.	2006-09-07
Thin film magnetic head and magnetic disk apparatus including the same App 20060198051 - Okada; Tomohiro ; et al.	2006-09-07
Thin film magnetic head and magnetic disk apparatus including the same Grant 7,068,467 - Okada , et al. June 27, 2	2006-06-27
Magnetic head for reducing projection of retrieving and writing unit from float surface, and magnetic recording/retrieving apparatus using the same Grant 7,064,925 - Maruyama , et al. June 20, 2	2006-06-20
Thin film magnetic head Grant 7,061,726 - Ohtomo , et al. June 13, 2	2006-06-13
Magnetic head for perpendicular recording App 20060087765 - Iwakura; Tadayuki ; et al.	2006-04-27
Magnetic write head App 20050122622 - Maruyama, Yoji ; et al.	2005-06-09
Manufacturing method of a thin film magnetic head Grant 6,877,212 - Okada , et al. April 12, 2	2005-04-12
Thin film magnetic head and magnetic disk apparatus including the same App 20050024767 - Okada, Tomohiro ; et al.	2005-02-03
Magnetic head whose composite magnetic core is recessed from air bearing surface App 20040246621 - Maruyama, Youji ; et al.	2004-12-09
Separate read/write magnetic head App 20040228041 - Iwakura, Tadayuki ; et al.	2004-11-18
Thin film magnetic head App 20040223265 - Ohtomo, Shigekazu ; et al.	2004-11-11
Magnetic head and magnetic recording/retrieving apparatus using the same App 20040109262 - Maruyama, Yohji ; et al.	2004-06-10
Thin film magnetic heads and a method of producing the same App 20020071210 - Kawabe, Takashi ; et al.	2002-06-13
Thin film magnetic heads and a method of producing the same App 20020060880 - Kawabe, Takashi ; et al.	2002-05-23
Thin Film Magnetic Head And Magnetic Disk Apparatus Including The Same App 20020041463 - OKADA, TOMOHIRO ; et al.	2002-04-11
Thin film magnetic head and magnetic disk apparatus including the same App 20020013996 - Okada, Tomohiro ; et al.	2002-02-07
Magnetic disc unit having a plurality of magnetic heads which include multilayer magnetic films Grant 5,590,008 - Tanabe , et al. December 31, 1	1996-12-31
Method of fabricating thin-film magnetic head Grant 5,349,745 - Kawabe , et al. September 27, 1	1994-09-27

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