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

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 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 369, Dynamic 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 2001 2002 2003 2004 2005 Total
SONY CORPORATION 125 114 98 100 66 503
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 86 68 83 106 95 438
PIONEER CORPORATION 14 42 71 63 57 247
HITACHI, LTD 45 63 61 47 24 240
SAMSUNG ELECTRONICS CO., LTD. 46 38 47 63 44 238
FUJITSU LIMITED 27 25 43 41 29 165
LG ELECTRONICS INC. 16 30 38 31 21 136
TOSHIBA CORPORATION 25 23 25 29 22 124
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 12 38 43 22 115
RICOH COMPANY, LTD. 14 23 19 29 22 107
SANYO ELECTRIC CO., LTD. 27 33 19 8 13 100
PIONEER ELECTRONIC CORPORATION 46 26 14 11 1 98
~Individually Owned Patent 18 22 26 15 11 92
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 15 20 15 21 15 86
VICTOR COMPANY OF JAPAN, LIMITED 7 12 14 19 17 69
NEC CORPORATION 19 10 10 13 9 61
MITSUBISHI DENKI KABUSHIKI KAISHA 12 17 10 9 6 54
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 16 20 15 51
DPHI ACQUISITIONS, INC. 0 0 1 15 31 47
SEAGATE TECHNOLOGY, LLC 13 10 11 7 4 45
INTERNATIONAL BUSINESS MACHINES CORPORATION 17 9 7 6 5 44
YAMAHA CORPORATION 8 5 6 6 16 41
FUNAI ELECTRIC CO., LTD. 8 6 6 12 8 40
TDK CORPORATION 8 7 9 9 6 39
TEAC CORPORATION 6 4 6 10 10 36
OLYMPUS OPTICAL CO., LTD. 6 15 8 3 2 34
U.S. PHILIPS CORPORATION 19 13 0 0 0 32
CANON KABUSHIKI KAISHA 10 7 7 3 4 31
HITACHI MAXELL, LTD. 3 11 7 6 3 30
VIA TECHNOLOGIES, INC. 0 4 4 7 13 28
THOMSON LICENSING S.A. 2 8 7 7 2 26
HEWLETT-PACKARD COMPANY 9 11 4 0 0 24
TERASTOR CORPORATION 3 5 11 1 1 21
DEUTSCHE THOMSON-BRANDT GMBH 13 3 0 3 1 20
DISCOVISION ASSOCIATES 9 4 3 2 1 19
MEDIATEK INC. 2 0 1 4 11 18
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 4 9 3 1 0 17
SEIKO INSTRUMENTS INC. 2 2 6 5 2 17
KONICA CORPORATION 2 5 1 4 4 16
LSI LOGIC CORPORATION 5 1 0 6 4 16
SANKYO SEIKI MFG. CO., LTD. 1 3 5 3 4 16
FUJI XEROX CO., LTD. 2 3 2 4 4 15
ROBERT BOSCH GMBH 2 3 4 2 4 15
CIRRUS LOGIC, INC. 3 4 5 2 0 14
LITE-ON IT CORPORATION 0 3 4 3 4 14
PENTAX CORPORATION 0 0 7 5 2 14
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 6 7 0 0 0 13
EASTMAN KODAK COMPANY 3 4 1 3 1 12
FUJI PHOTO FILM CO., LTD 0 3 6 3 0 12
IMATION CORP. 1 0 5 5 1 12
MITSUBISHI CHEMICAL CORPORATION 1 3 6 2 0 12
MITSUMI ELECTRIC CO., LTD. 4 3 1 1 3 12
OAK TECHNOLOGIES, INC. 1 4 7 0 0 12
TAIYO YUDEN CO., LTD. 1 5 2 4 0 12
CLARION CO., LTD. 3 2 3 3 0 11
ALPINE ELECTRONICS INC. 2 1 1 1 5 10
MINOLTA CAMERA CO., LTD. 2 3 0 4 1 10
SONY COMPUTER ENTERTAINMENT INC. 1 0 0 6 2 9
ALPS ELECTRIC CO., LTD. 3 2 3 0 0 8
SEAGATE TECHNOLOGY, INCORPORATED 6 2 0 0 0 8
STORAGE TECHNOLOGY CORPORATION 1 1 4 1 1 8
ZEN RESEARCH (IRELAND), LTD. 2 6 0 0 0 8
BEHAVIOR TECH COMPUTER CORP. 0 0 2 3 2 7
CALIMETRICS, INC. 0 2 5 0 0 7
DENON, LTD. 0 0 3 2 2 7
KABUSHIKI KAISHA KENWOOD 3 1 1 1 1 7
MICRON TECHNOLOGY, INC. 0 1 4 1 1 7
ROHM COMPANY LIMITED 1 1 4 0 1 7
ROXIO, INC. 1 2 2 2 0 7
SEIKO EPSON CORPORATION 1 2 2 2 0 7
SIROS TECHNOLOGIES, INC. 5 0 2 0 0 7
STMICROELECTRONICS S.A. 0 2 2 1 2 7
ASUSTEK COMPUTER INC. 0 1 2 2 1 6
RITEK CORPORATION 1 2 1 0 2 6
SAMSUNG ELECTRO-MECHANICS CO., LTD. 1 1 0 2 2 6
TEXAS INSTRUMENTS, INCORPORATED 2 0 2 0 2 6
DOUG CARSON & ASSOCIATES, INC. 0 3 0 2 0 5
GENERAL ELECTRIC COMPANY 0 0 0 1 4 5
INTEL CORPORATION 1 1 1 1 1 5
MAXOPTIX CORPORATION 5 0 0 0 0 5
MECHANICAL RESEARCH CORPORATION 1 0 1 3 0 5
NIPPON COLUMBIA COMPANY, LTD. 1 3 1 0 0 5
READ-RITE CORPORATION 3 2 0 0 0 5
RESEARCH INVESTMENT NETWORK, INC. 0 0 1 3 1 5


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U.S. Patent and Trademark Office
Electronic Information Products Division - PTMB
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

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

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