Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports


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

Patenting In Technology Classes,
Breakout By Organization

Count of 2005 - 2009 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 2005 2006 2007 2008 2009 Total
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. 125 179 202 203 235 944
SEAGATE TECHNOLOGY, LLC 141 136 77 81 92 527
FUJITSU LIMITED 46 86 53 95 103 383
SAMSUNG ELECTRONICS CO., LTD. 31 74 67 85 93 350
WESTERN DIGITAL TECHNOLOGIES, INC. 89 81 42 39 43 294
TDK CORPORATION 29 48 52 61 80 270
INTERNATIONAL BUSINESS MACHINES CORPORATION 73 53 34 45 63 268
MAXTOR CORPORATION 32 61 56 38 37 224
TOSHIBA CORPORATION 44 40 45 43 44 216
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 39 108 59 7 1 214
HEADWAY TECHNOLOGIES, INC. 27 43 27 41 22 160
SONY CORPORATION 30 49 38 21 16 154
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. 27 66 33 15 8 149
ALPS ELECTRIC CO., LTD. 39 38 35 10 3 125
HITACHI, LTD 52 35 13 7 7 114
SAE MAGNETICS (H.K.) LTD. 12 17 19 27 29 104
FUJI PHOTO FILM CO., LTD 42 50 8 0 0 100
WESTERN DIGITAL (FREMONT), INC. 23 20 20 15 14 92
MARVELL INTERNATIONAL LTD. 5 12 23 20 29 89
STORAGE TECHNOLOGY CORPORATION 20 20 17 10 6 73
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 12 19 17 14 10 72
FUJIFILM CORPORATION 0 0 18 30 19 67
QUANTUM CORP. (CA) 10 20 15 10 12 67
IMATION CORP. 8 20 10 10 6 54
TEXAS INSTRUMENTS, INCORPORATED 9 18 9 7 2 45
MAGNECOMP CORP. 7 7 6 8 12 40
~INDIVIDUALLY OWNED PATENT 7 11 9 3 9 39
AGERE SYSTEMS INC. 2 12 7 5 9 35
MITSUMI ELECTRIC CO., LTD. 11 5 5 9 5 35
HUTCHINSON TECHNOLOGY INC. 4 5 6 10 8 33
NEC CORPORATION 6 8 9 7 1 31
NHK SPRING CO., LTD. 10 5 4 2 6 27
SPECTRA LOGIC CORPORATION 0 5 6 5 5 21
CERTANCE LLC 1 4 7 5 3 20
STMICROELECTRONICS, INC. 3 5 3 6 2 19
ADVANCED RESEARCH CORPORATION 2 4 4 4 4 18
IOMEGA CORPORATION 4 6 3 3 1 17
HITACHI GLOBAL STORAGE TECHNOLOGIES 2 4 5 5 0 16
BROADCOM CORPORATION 0 0 2 5 6 13
HITACHI MAXELL, LTD. 1 2 5 1 4 13
STMICROELECTRONICS S.R.L. 5 3 2 3 0 13
KONINKLIJKE PHILIPS ELECTRONICS N.V. 3 3 2 2 2 12
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 3 5 0 1 3 12
SUN MICROSYSTEMS, INC. 0 0 0 4 8 12
CANON KABUSHIKI KAISHA 1 3 3 1 3 11
NIDEC CORPORATION 2 1 0 3 5 11
FUNAI ELECTRIC CO., LTD. 3 2 2 1 2 10
KOMAG, INC. 1 5 4 0 0 10
PANASONIC CORPORATION 0 0 0 3 7 10
PIONEER CORPORATION 5 3 0 0 1 9
TANDBERG DATA A/S 3 3 1 1 1 9
INTRI-PLEX TECHNOLOGIES, INC. 0 0 2 2 4 8
ESGW HOLDINGS LIMITED 2 3 0 1 1 7
RENESAS TECHNOLOGY CORPORATION 3 1 3 0 0 7
ROHM COMPANY LIMITED 1 4 1 1 0 7
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH 1 2 0 1 2 6
YAMAHA CORPORATION 1 1 2 1 1 6
FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD. 1 2 0 0 2 5
NITTO DENKO CORPORATION 1 0 1 2 1 5
SEAGATE TECHNOLOGY, INCORPORATED 1 1 0 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/


Top

Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports