Toma; Yusuke

Patent Applications and Registrations

Patent applications and USPTO patent grants for Toma; Yusuke.The latest application filed is for "perpendicular magnetic recording head".

Company Profile

0.5.6

Toma; Yusuke - Niigata-ken JP
Toma; Yusuke - Saitama 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 recording head with the return yoke layer having gradually increasing the width Grant 8,045,292 - Toma , et al. October 25, 2	2011-10-25
Vertical magnetic recording head device with the return yoke layer having thick portions Grant 8,018,680 - Toma , et al. September 13, 2	2011-09-13
Perpendicular magnetic recording head and perpendicular magnetic recording/reproducing head with at least one shield layer having a substantially arched portion Grant 7,983,010 - Toma , et al. July 19, 2	2011-07-19
Perpendicular magnetic recording head and perpendicular magnetic recording/reproducing head having a magnetic shield layer with a thick edge portion Grant 7,903,371 - Toma , et al. March 8, 2	2011-03-08
Perpendicular magnetic recording head having a main magnetic pole layer with a trapezoidally shaped flared part with a ratio of the length of the long base to that of the short base is equal to 1 Grant 7,859,791 - Toma , et al. December 28, 2	2010-12-28
Perpendicular Magnetic Recording Head App 20080174911 - Toma; Yusuke ; et al.	2008-07-24
Vertical Magnetic Recording Head Device App 20080152951 - Toma; Yusuke ; et al.	2008-06-26
Optical device and imaging apparatus App 20080094730 - Toma; Yusuke	2008-04-24
Perpendicular Magnetic Recording Head and Perpendicular Magnetic Recording/Reproducing Head App 20080019043 - TOMA; Yusuke ; et al.	2008-01-24
Perpendicular Magnetic Recording Head and Perpendicular Magnetic Recording/Reproducing Head App 20080019042 - TOMA; Yusuke ; et al.	2008-01-24
Perpendicular Magnetic Recording Head Having Flared Part App 20070236834 - Toma; Yusuke ; et al.	2007-10-11

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