Aoi; Hajime

Patent Applications and Registrations

Patent applications and USPTO patent grants for Aoi; Hajime.The latest application filed is for "magnetic recording medium".

Company Profile

0.21.5

Aoi; Hajime - Sendai JP
AOI; Hajime - Sendai-shi JP
Aoi, Hajime - Fujisawa-shi JP
Aoi; Hajime - Tachikawa JP
Aoi; Hajime - Tokyo 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 medium Grant 8,691,402 - Kitakami , et al. April 8, 2	2014-04-08
Perpendicular magnetic recording medium Grant 8,323,808 - Kitakami , et al. December 4, 2	2012-12-04
Magnetic thin film and method for forming the film, and magnetic thin film-applied device Grant 8,076,012 - Shimatsu , et al. December 13, 2	2011-12-13
Magnetic thin film and method of manufacturing the same, and various application devices using the same Grant 7,993,762 - Shimatsu , et al. August 9, 2	2011-08-09
Magnetic Recording Medium App 20110020669 - SAYAMA; Junichi ; et al.	2011-01-27
Magnetic Thin Film And Method Of Manufacturing The Same, And Various Application Devices Using The Same App 20100140727 - SHIMATSU; Takehito ; et al.	2010-06-10
Magnetic Thin Film And Method For Forming The Film, And Magnetic Thin Film-applied Device App 20100055503 - SHIMATSU; Takehito ; et al.	2010-03-04
Perpendicular magnetic recording medium App 20050181237 - Kitakami, Osamu ; et al.	2005-08-18
Magnetic recording disk drive and method for ensuring magnetic recording function thereof App 20040109253 - Nishiyama, Nobumasa ; et al.	2004-06-10
Array disk subsystem Grant 6,243,824 - Kakuta , et al. June 5, 2	2001-06-05
Surface atom fabrication method and apparatus Grant 5,689,494 - Ichikawa , et al. November 18, 1	1997-11-18
Large capacity magnetic disc apparatus with a particular relationship between pole thickness, saturated flux density, and recording wavelength Grant 5,671,107 - Mitsuoka , et al. September 23, 1	1997-09-23
Magnetic recording drive having arrangements for average useful life of magnetorestive effects sensors Grant 5,572,379 - Aoi , et al. November 5, 1	1996-11-05
Variable length data in a parallel disk array Grant 5,572,699 - Kamo , et al. November 5, 1	1996-11-05
Method of head positioning and magnetic recording disk drive using the same Grant 5,568,331 - Akagi , et al. October 22, 1	1996-10-22
Surface atom fabrication method and apparatus Grant 5,416,331 - Ichikawa , et al. May 16, 1	1995-05-16
Array disk subsystem Grant 5,402,428 - Kakuta , et al. March 28, 1	1995-03-28
Digital magnetic writing and reading apparatus Grant 5,337,198 - Nishiyama , et al. August 9, 1	1994-08-09
Magnetic disk apparatus of constant-density recording type, magnetic disk used therefor and servo-writing device for patterning on the magnetic disk Grant 5,193,034 - Tsuyoshi , et al. March 9, 1	1993-03-09
High speed seek sector servo magnetic disk drive unit Grant 5,132,854 - Tsuyoshi , et al. July 21, 1	1992-07-21
Magnetic disk device and method of recording/retrieving information Grant 5,109,311 - Hanazono , et al. April 28, 1	1992-04-28
Readout circuit in magnetic recording device Grant 4,907,100 - Nishiyama , et al. March 6, 1	1990-03-06
Actuator driving apparatus and magnetic disk drive system with a smaller number of high power amplifiers than actuators Grant 4,851,939 - Seo , et al. July 25, 1	1989-07-25
Multi slice level signal circuit Grant 4,823,208 - Ouchi , et al. April 18, 1	1989-04-18
Magnetic head Grant 4,777,553 - Aoi , et al. October 11, 1	1988-10-11
Read channel for magnetic recording Grant 4,774,601 - Ouchi , et al. September 27, 1	1988-09-27

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