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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2004 - 2008 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 2004 2005 2006 2007 2008 Total
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. 92 125 179 202 203 801
SEAGATE TECHNOLOGY, LLC 270 141 136 77 81 705
FUJITSU LIMITED 69 46 86 53 95 349
INTERNATIONAL BUSINESS MACHINES CORPORATION 121 73 53 34 45 326
WESTERN DIGITAL TECHNOLOGIES, INC. 66 89 81 42 39 317
SAMSUNG ELECTRONICS CO., LTD. 36 31 74 67 85 293
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 47 39 108 59 7 260
TDK CORPORATION 44 29 48 52 61 234
MAXTOR CORPORATION 41 32 61 56 38 228
TOSHIBA CORPORATION 39 44 40 45 43 211
SONY CORPORATION 57 30 49 38 21 195
ALPS ELECTRIC CO., LTD. 59 39 38 35 10 181
HITACHI, LTD 74 52 35 13 7 181
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. 11 27 66 33 15 152
HEADWAY TECHNOLOGIES, INC. 11 27 43 27 41 149
FUJI PHOTO FILM CO., LTD 27 42 50 8 0 127
WESTERN DIGITAL (FREMONT), INC. 29 23 20 20 15 107
SAE MAGNETICS (H.K.) LTD. 16 12 17 19 27 91
STORAGE TECHNOLOGY CORPORATION 20 20 20 17 10 87
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 20 12 19 17 14 82
QUANTUM CORP. (CA) 15 10 20 15 10 70
TEXAS INSTRUMENTS, INCORPORATED 27 9 18 9 7 70
MARVELL INTERNATIONAL LTD. 4 5 12 23 20 64
IMATION CORP. 12 8 20 10 10 60
FUJIFILM CORPORATION 0 0 0 18 30 48
NEC CORPORATION 18 6 8 9 7 48
MITSUMI ELECTRIC CO., LTD. 17 11 5 5 9 47
~INDIVIDUALLY OWNED PATENT 15 7 11 9 3 45
MAGNECOMP CORP. 7 7 7 6 8 35
HUTCHINSON TECHNOLOGY INC. 9 4 5 6 10 34
AGERE SYSTEMS INC. 7 2 12 7 5 33
IOMEGA CORPORATION 15 4 6 3 3 31
NHK SPRING CO., LTD. 10 10 5 4 2 31
HITACHI GLOBAL STORAGE TECHNOLOGIES 8 2 4 5 5 24
STMICROELECTRONICS, INC. 5 3 5 3 6 22
CERTANCE LLC 1 1 4 7 5 18
STMICROELECTRONICS S.R.L. 5 5 3 2 3 18
SPECTRA LOGIC CORPORATION 1 0 5 6 5 17
ADVANCED RESEARCH CORPORATION 1 2 4 4 4 15
CANON KABUSHIKI KAISHA 7 1 3 3 1 15
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 4 3 5 0 1 13
PIONEER CORPORATION 5 5 3 0 0 13
FUNAI ELECTRIC CO., LTD. 4 3 2 2 1 12
KOMAG, INC. 2 1 5 4 0 12
KONINKLIJKE PHILIPS ELECTRONICS N.V. 2 3 3 2 2 12
HITACHI MAXELL, LTD. 2 1 2 5 1 11
RENESAS TECHNOLOGY CORPORATION 3 3 1 3 0 10
TANDBERG DATA A/S 2 3 3 1 1 10
FUJI ELECTRIC CO., LTD. 5 2 2 0 0 9
INFINEON TECHNOLOGIES AG 8 0 0 0 0 8
NIDEC CORPORATION 2 2 1 0 3 8
ROHM COMPANY LIMITED 1 1 4 1 1 8
BROADCOM CORPORATION 0 0 0 2 5 7
CIRRUS LOGIC, INC. 5 0 2 0 0 7
EXABYTE CORPORATION 4 1 2 0 0 7
VICTOR COMPANY OF JAPAN, LIMITED 4 2 1 0 0 7
ESGW HOLDINGS LIMITED 0 2 3 0 1 6
JP MORGAN CHASE BANK, N.A. 5 0 0 0 0 5
ORION ELECTRIC CO., LTD. 4 1 0 0 0 5
SEGWAY SYSTEMS, LLC 1 3 1 0 0 5
YAMAHA CORPORATION 0 1 1 2 1 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
ftp download of selected PTMT reports and materials from : ftp.uspto.gov/pub/taf/


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