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

Patenting In Technology Classes,
Breakout By Organization

Count of 2007 - 2011 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 2007 2008 2009 2010 2011 Total
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. 202 203 235 196 194 1030
SEAGATE TECHNOLOGY, LLC 77 82 94 106 86 445
TDK CORPORATION 52 61 80 107 134 434
SAMSUNG ELECTRONICS CO., LTD. 67 85 93 63 69 377
INTERNATIONAL BUSINESS MACHINES CORPORATION 34 45 63 57 85 284
FUJITSU LIMITED 53 95 103 7 5 263
WESTERN DIGITAL TECHNOLOGIES, INC. 42 39 43 48 55 227
TOSHIBA CORPORATION 45 43 44 46 46 224
MARVELL INTERNATIONAL LTD. 23 20 29 41 57 170
HEADWAY TECHNOLOGIES, INC. 27 41 22 25 41 156
MAXTOR CORPORATION 56 38 37 5 2 138
SAE MAGNETICS (H.K.) LTD. 19 27 29 27 27 129
TOSHIBA STORAGE DEVICE CORPORATION 0 0 1 60 29 90
FUJIFILM CORPORATION 18 30 19 8 8 83
SONY CORPORATION 38 21 16 4 1 80
WESTERN DIGITAL (FREMONT), INC. 20 15 14 12 15 76
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 59 7 1 1 0 68
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. 33 15 8 6 4 66
ALPS ELECTRIC CO., LTD. 35 10 3 2 6 56
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 17 14 10 5 8 54
QUANTUM CORP. (CA) 15 10 12 10 3 50
HUTCHINSON TECHNOLOGY INC. 6 10 8 12 7 43
MAGNECOMP CORP. 6 8 12 9 8 43
~INDIVIDUALLY OWNED PATENT 9 3 9 16 5 42
HITACHI, LTD 13 7 7 5 9 41
AGERE SYSTEMS INC. 7 5 9 13 4 38
STORAGE TECHNOLOGY CORPORATION 17 10 6 3 0 36
NHK SPRING CO., LTD. 4 2 6 12 8 32
TEXAS INSTRUMENTS, INCORPORATED 9 7 2 10 4 32
IMATION CORP. 10 10 6 1 2 29
BROADCOM CORPORATION 2 5 6 12 3 28
PANASONIC CORPORATION 0 3 7 10 7 27
HITACHI MAXELL, LTD. 5 1 4 5 9 24
MITSUMI ELECTRIC CO., LTD. 5 9 5 2 1 22
ADVANCED RESEARCH CORPORATION 4 4 4 4 5 21
NEC CORPORATION 9 7 1 3 1 21
SPECTRA LOGIC CORPORATION 6 5 5 3 2 21
SUN MICROSYSTEMS, INC. 0 4 8 7 0 19
LSI CORPORATION 0 0 1 0 17 18
STMICROELECTRONICS, INC. 3 6 2 5 2 18
CERTANCE LLC 7 5 3 1 0 16
ORACLE AMERICA, INC. 0 0 0 4 11 15
HITACHI GLOBAL STORAGE TECHNOLOGIES 5 5 0 1 0 11
HITACHI HIGH-TECHNOLOGIES CORPORATION 0 0 0 2 9 11
INTRI-PLEX TECHNOLOGIES, INC. 2 2 4 0 2 10
NIDEC CORPORATION 0 3 5 0 1 9
FUJI PHOTO FILM CO., LTD 8 0 0 0 0 8
IOMEGA CORPORATION 3 3 1 1 0 8
MARVELL WORLD TRADE LTD. 0 2 1 2 3 8
NITTO DENKO CORPORATION 1 2 1 1 3 8
WD MEDIA, INC. 0 1 0 3 4 8
CANON KABUSHIKI KAISHA 3 1 3 0 0 7
KONINKLIJKE PHILIPS ELECTRONICS N.V. 2 2 2 0 1 7
SUNCALL CORPORATION 1 2 1 0 3 7
FUNAI ELECTRIC CO., LTD. 2 1 2 1 0 6
GRANDIS, INC. 1 0 2 2 1 6
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 0 1 3 2 0 6
ROHM COMPANY LIMITED 1 1 0 2 2 6
SHOWA DENKO KABUSHIKI KAISHA 0 0 0 3 3 6
STMICROELECTRONICS S.R.L. 2 3 0 0 1 6
XYRATEX TECHNOLOGY LIMITED 0 0 0 4 2 6
FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD. 0 0 2 0 3 5
LENOVO (SINGAPORE) PTE LTD 1 0 1 1 2 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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