Yasunaga; Tadashi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yasunaga; Tadashi.The latest application filed is for "apparatus and method for manufacturing magnetic recording medium".

Company Profile

0.22.25

Yasunaga; Tadashi - Odawara JP
Yasunaga; Tadashi - Kanagawa JP
Yasunaga; Tadashi - Odawara-shi JP
Yasunaga; Tadashi - Kanagawa-ken 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
Amplitude servo pattern, magnetic recording medium and the manufacturing method, patterned magnetic transfer master substrate used in the manufacturing method, and magnetic recording/reproducing apparatus Grant 7,522,362 - Komine , et al. April 21, 2	2009-04-21
Apparatus And Method For Manufacturing Magnetic Recording Medium App 20090039560 - Nishikawa; Masakazu ; et al.	2009-02-12
Master information carrier for magnetic transfer Grant 7,477,463 - Yasunaga , et al. January 13, 2	2009-01-13
Method For Producing Magnetic Recording Medium, Magnetic Recording Medium Produced By The Production Method, And Mold Structure For Use In The Production Method App 20090002886 - Nishikawa; Masakazu ; et al.	2009-01-01
Method For Producing Magnetic Recording Medium, Magnetic Recording Medium Produced By The Production Method, And Mold Structure For Use In The Production Method App 20080316649 - NISHIKAWA; Masakazu ; et al.	2008-12-25
Master information carrier for magnetic transfer and its production method Grant 7,465,383 - Niitsuma , et al. December 16, 2	2008-12-16
Method Of Magnetic Transfer And Magnetic Recording Medium App 20080239533 - Nagao; Makoto ; et al.	2008-10-02
Signal processing method of magnetic recording medium and magnetic record reproduction apparatus Grant 7,365,926 - Nagao , et al. April 29, 2	2008-04-29
Magnetic recording medium and drive apparatus therefor Grant 7,359,133 - Yasunaga April 15, 2	2008-04-15
Master Recording Medium, Magnetic Transfer Method, Magnetic Transfer Apparatus, And Magnetic Recording Medium And Magnetic Recording And Reproducing Apparatus Thereby Made App 20080062548 - Fujiwara; Naoto ; et al.	2008-03-13
Master medium for perpendicular magnetic transfer, method of perpendicular magnetic transfer, perpendicular magnetic recording medium and perpendicular magnetic recording apparatus App 20070217047 - Ichikawa; Kenji ; et al.	2007-09-20
Patterned master carrier for magnetic transfer, manufacturing method thereof, magnetic transfer method, recording medium, and magnetic recording and reproduction apparatus Grant 7,193,796 - Yasunaga March 20, 2	2007-03-20
Method of magnetic transfer to flexible medium Grant 7,187,510 - Yasunaga , et al. March 6, 2	2007-03-06
Master carrier for magnetic transfer Grant 7,149,042 - Nishikawa , et al. December 12, 2	2006-12-12
Master information carrier for magnetic transfer and magnetic transfer method Grant 7,094,481 - Nishikawa , et al. August 22, 2	2006-08-22
Magnetic transfer method for a high-density magnetic recording medium Grant 7,054,082 - Nishikawa , et al. May 30, 2	2006-05-30
Patterned master carrier for magnetic transfer, magnetic recording medium, and magnetic recording/reproducing apparatus App 20060082913 - Niitsuma; Kazuhiro ; et al.	2006-04-20
Signal processing method of magnetic recording medium and magnetic record reproduction apparatus App 20060061897 - Nagao; Makoto ; et al.	2006-03-23
Amplitude servo pattern, magnetic recording medium and the manufacturing method, patterned magnetic transfer master substrate used in the manufacturing method, and magnetic recording/reproducing apparatus App 20060007569 - Komine; Takashi ; et al.	2006-01-12
Process for producing magnetic recording medium with limited coercivity squareness ratio App 20050277000 - Nagao, Makoto ; et al.	2005-12-15
Magnetic recording medium, method of producing the magnetic recording medium, patterned master carrier for magnetic transfer employed during production of the magnetic recording medium, and magnetic recording/reproducing apparatus App 20050213235 - Yasunaga, Tadashi	2005-09-29
Master carrier for magnetic transfer Grant 6,950,252 - Nishikawa , et al. September 27, 2	2005-09-27
Master information carrier for magnetic transfer and its production method App 20050181133 - Niitsuma, Kazuhiro ; et al.	2005-08-18
Master information carrier for magnetic transfer Grant 6,911,270 - Nishikawa , et al. June 28, 2	2005-06-28
Master carrier for magnetic transfer Grant 6,909,563 - Nishikawa , et al. June 21, 2	2005-06-21
Magnetic transfer method for a high-density magnetic recording medium Grant 6,906,877 - Nishikawa , et al. June 14, 2	2005-06-14
Master carrier for magnetic transfer App 20050111124 - Nishikawa, Masakazu ; et al.	2005-05-26
Master information carrier for magnetic transfer Grant 6,887,593 - Sugita , et al. May 3, 2	2005-05-03
Patterned master carrier for magnetic transfer, manufacturing method thereof, magnetic transfer method, recording medium, and magnetic recording and reproduction apparatus App 20040264024 - Yasunaga, Tadashi	2004-12-30
Master information carrier for magnetic transfer and magnetic transfer method Grant 6,816,327 - Nishikawa , et al. November 9, 2	2004-11-09
Master information carrier for magnetic transfer and its production method App 20040180174 - Niitsuma, Kazuhiro ; et al.	2004-09-16
Master information carrier for magnetic transfer App 20040156135 - Yasunaga, Tadashi ; et al.	2004-08-12
Master information carrier for magnetic transfer App 20040081856 - Sugita, Ryuji ; et al.	2004-04-29
Method of magnetic transfer to flexible medium App 20030117735 - Yasunaga, Tadashi ; et al.	2003-06-26
Master information carrier for magnetic transfer App 20030113583 - Nishikawa, Masakazu ; et al.	2003-06-19
Master information carrier for magnetic transfer and magnetic transfer method App 20030099867 - Nishikawa, Masakazu ; et al.	2003-05-29
Master carrier for magnetic transfer App 20030063403 - Nishikawa, Masakazu ; et al.	2003-04-03
Master carrier for magnetic transfer App 20030011912 - Nishikawa, Masakazu ; et al.	2003-01-16
Magnetic recording medium and drive apparatus therefor App 20020191317 - Yasunaga, Tadashi	2002-12-19
Magnetic transfer method for a high-density magnetic recording medium App 20020186487 - Nishikawa, Masakazu ; et al.	2002-12-12
Magnetic transfer method for a high-density magnetic recording medium App 20020186488 - Nishikawa, Masakazu ; et al.	2002-12-12
Magnetic recording medium Grant 5,503,943 - Sano , et al. April 2, 1	1996-04-02
Magnetic recording medium Grant 5,405,689 - Usuki , et al. April 11, 1	1995-04-11
Method for producing magnetic recording medium Grant 4,990,361 - Yasunaga , et al. February 5, 1	1991-02-05
Magnetic recording medium Grant 4,923,748 - Yasunaga , et al. May 8, 1	1990-05-08
Magnetic recording medium containing Fe, Co, N and O Grant 4,873,154 - Yasunaga , et al. October 10, 1	1989-10-10
Magnetic recording medium having iron nitride recording layer Grant 4,673,610 - Shirahata , et al. June 16, 1	1987-06-16

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