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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2006 - 2010 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 360, Dynamic Magnetic Information Storage or Retrieval

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant.
First-Named Assignee 2006 2007 2008 2009 2010 Total
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. 179 202 203 235 196 1015
SEAGATE TECHNOLOGY, LLC 136 77 81 92 105 491
SAMSUNG ELECTRONICS CO., LTD. 74 67 85 93 63 382
TDK CORPORATION 48 52 61 80 107 348
FUJITSU LIMITED 86 53 95 103 7 344
WESTERN DIGITAL TECHNOLOGIES, INC. 81 42 39 43 48 253
INTERNATIONAL BUSINESS MACHINES CORPORATION 53 34 45 63 57 252
TOSHIBA CORPORATION 40 45 43 44 46 218
MAXTOR CORPORATION 61 56 38 37 5 197
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 108 59 7 1 1 176
HEADWAY TECHNOLOGIES, INC. 43 27 41 22 25 158
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. 66 33 15 8 6 128
SONY CORPORATION 49 38 21 16 4 128
MARVELL INTERNATIONAL LTD. 12 23 20 29 41 125
SAE MAGNETICS (H.K.) LTD. 17 19 27 29 27 119
ALPS ELECTRIC CO., LTD. 38 35 10 3 2 88
WESTERN DIGITAL (FREMONT), INC. 20 20 15 14 12 81
FUJIFILM CORPORATION 0 18 30 19 8 75
HITACHI, LTD 35 13 7 7 5 67
QUANTUM CORP. (CA) 20 15 10 12 10 67
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 19 17 14 10 5 65
TOSHIBA STORAGE DEVICE CORPORATION 0 0 0 1 60 61
FUJI PHOTO FILM CO., LTD 50 8 0 0 0 58
STORAGE TECHNOLOGY CORPORATION 20 17 10 6 3 56
~INDIVIDUALLY OWNED PATENT 11 9 3 9 16 48
IMATION CORP. 20 10 10 6 1 47
AGERE SYSTEMS INC. 12 7 5 9 13 46
TEXAS INSTRUMENTS, INCORPORATED 18 9 7 2 10 46
MAGNECOMP CORP. 7 6 8 12 9 42
HUTCHINSON TECHNOLOGY INC. 5 6 10 8 12 41
NHK SPRING CO., LTD. 5 4 2 6 12 29
NEC CORPORATION 8 9 7 1 3 28
MITSUMI ELECTRIC CO., LTD. 5 5 9 5 2 26
BROADCOM CORPORATION 0 2 5 6 12 25
SPECTRA LOGIC CORPORATION 5 6 5 5 3 24
PANASONIC CORPORATION 0 0 3 7 11 21
STMICROELECTRONICS, INC. 5 3 6 2 5 21
ADVANCED RESEARCH CORPORATION 4 4 4 4 4 20
CERTANCE LLC 4 7 5 3 1 20
SUN MICROSYSTEMS, INC. 0 0 4 8 7 19
HITACHI MAXELL, LTD. 2 5 1 4 5 17
HITACHI GLOBAL STORAGE TECHNOLOGIES 4 5 5 0 1 15
IOMEGA CORPORATION 6 3 3 1 1 14
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 5 0 1 3 2 11
CANON KABUSHIKI KAISHA 3 3 1 3 0 10
KOMAG, INC. 5 4 0 0 0 9
KONINKLIJKE PHILIPS ELECTRONICS N.V. 3 2 2 2 0 9
NIDEC CORPORATION 1 0 3 5 0 9
FUNAI ELECTRIC CO., LTD. 2 2 1 2 1 8
INTRI-PLEX TECHNOLOGIES, INC. 0 2 2 4 0 8
ROHM COMPANY LIMITED 4 1 1 0 2 8
STMICROELECTRONICS S.R.L. 3 2 3 0 0 8
ESGW HOLDINGS LIMITED 3 0 1 1 1 6
TANDBERG DATA A/S 3 1 1 1 0 6
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH 2 0 1 2 0 5
GRANDIS, INC. 0 1 0 2 2 5
MARVELL WORLD TRADE LTD. 0 0 2 1 2 5
NITTO DENKO CORPORATION 0 1 2 1 1 5
RENESAS TECHNOLOGY CORPORATION 1 3 0 0 1 5
SEAGATE TECHNOLOGY, INCORPORATED 1 0 1 2 1 5
SHOWA DENKO KABUSHIKI KAISHA 2 0 0 0 3 5
XYRATEX TECHNOLOGY LIMITED 1 0 0 0 4 5
YAMAHA CORPORATION 1 2 1 1 0 5


PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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