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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 2000 - 2004 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 2000 2001 2002 2003 2004 Total
SONY CORPORATION 138 125 114 98 100 575
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 64 86 68 83 107 408
HITACHI, LTD 19 45 63 61 47 235
SAMSUNG ELECTRONICS CO., LTD. 25 46 38 47 63 219
PIONEER CORPORATION 2 14 42 71 63 192
FUJITSU LIMITED 32 27 25 43 41 168
PIONEER ELECTRONIC CORPORATION 48 46 26 14 11 145
LG ELECTRONICS INC. 21 16 30 38 31 136
TOSHIBA CORPORATION 33 25 23 25 29 135
~Individually Owned Patent 22 18 22 26 15 103
SANYO ELECTRIC CO., LTD. 13 27 33 19 8 100
RICOH COMPANY, LTD. 13 14 23 19 29 98
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 0 12 38 43 93
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 11 16 20 15 21 83
NEC CORPORATION 20 19 10 10 13 72
INTERNATIONAL BUSINESS MACHINES CORPORATION 29 17 9 7 6 68
VICTOR COMPANY OF JAPAN, LIMITED 9 7 12 14 19 61
MITSUBISHI DENKI KABUSHIKI KAISHA 12 12 17 10 9 60
CANON KABUSHIKI KAISHA 20 10 7 7 3 47
U.S. PHILIPS CORPORATION 15 19 13 0 0 47
SEAGATE TECHNOLOGY, LLC 2 13 11 11 7 44
TDK CORPORATION 10 8 7 9 9 43
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 0 16 20 36
OLYMPUS OPTICAL CO., LTD. 4 6 15 8 3 36
FUNAI ELECTRIC CO., LTD. 2 8 6 6 12 34
HEWLETT-PACKARD COMPANY 10 9 11 4 0 34
HITACHI MAXELL, LTD. 5 3 11 7 6 32
TEAC CORPORATION 5 6 4 6 10 31
YAMAHA CORPORATION 3 8 5 6 6 28
DEUTSCHE THOMSON-BRANDT GMBH 8 13 3 0 3 27
DISCOVISION ASSOCIATES 7 9 4 3 2 25
TERASTOR CORPORATION 5 3 5 11 1 25
THOMSON LICENSING S.A. 0 2 8 7 7 24
SANKYO SEIKI MFG. CO., LTD. 8 1 3 5 4 21
SEAGATE TECHNOLOGY, INCORPORATED 13 6 2 0 0 21
CIRRUS LOGIC, INC. 4 3 4 5 2 18
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 1 4 9 3 1 18
MITSUBISHI CHEMICAL CORPORATION 5 1 3 6 2 17
DPHI ACQUISITIONS, INC. 0 0 0 1 15 16
EASTMAN KODAK COMPANY 5 3 4 1 3 16
KONICA CORPORATION 4 2 5 1 4 16
OAK TECHNOLOGIES, INC. 4 1 4 7 0 16
SEIKO INSTRUMENTS INC. 0 2 2 6 5 15
VIA TECHNOLOGIES, INC. 0 0 4 4 7 15
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 1 6 7 0 0 14
LSI LOGIC CORPORATION 2 5 1 0 6 14
ALPS ELECTRIC CO., LTD. 5 3 2 3 0 13
FUJI PHOTO FILM CO., LTD 0 0 3 6 3 12
IMATION CORP. 1 1 0 5 5 12
MITSUMI ELECTRIC CO., LTD. 3 4 3 1 1 12
PENTAX CORPORATION 0 0 0 7 5 12
ROBERT BOSCH GMBH 1 2 3 4 2 12
TAIYO YUDEN CO., LTD. 0 1 5 2 4 12
CLARION CO., LTD. 0 3 2 3 3 11
FUJI XEROX CO., LTD. 0 2 3 2 4 11
LITE-ON IT CORPORATION 0 0 3 4 3 10
MEDIATEK INC. 3 2 0 1 4 10
MINOLTA CAMERA CO., LTD. 0 2 3 0 4 9
READ-RITE CORPORATION 4 3 2 0 0 9
STORAGE TECHNOLOGY CORPORATION 2 1 1 4 1 9
CALIMETRICS, INC. 1 0 2 5 0 8
DAEWOO ELECTRONICS COMPANY, LTD. 5 2 1 0 0 8
KABUSHIKI KAISHA KENWOOD 2 3 1 1 1 8
NIPPON COLUMBIA COMPANY, LTD. 3 1 3 1 0 8
ROHM COMPANY LIMITED 2 1 1 4 0 8
SEIKO EPSON CORPORATION 1 1 2 2 2 8
SIROS TECHNOLOGIES, INC. 1 5 0 2 0 8
ZEN RESEARCH (IRELAND), LTD. 0 2 6 0 0 8
ROXIO, INC. 0 1 2 2 2 7
SONY COMPUTER ENTERTAINMENT INC. 0 1 0 0 6 7
ALPINE ELECTRONICS INC. 1 2 1 1 1 6
MAXOPTIX CORPORATION 1 5 0 0 0 6
MICRON TECHNOLOGY, INC. 0 0 1 4 1 6
NIKON CORPORATION 4 0 1 0 1 6
PHILIPS ELECTRONICS NORTH AMERICA CORP. 4 2 0 0 0 6
STMICROELECTRONICS S.A. 1 0 2 2 1 6
TEXAS INSTRUMENTS, INCORPORATED 2 2 0 2 0 6
AIWA CO., LTD. 1 0 1 3 0 5
ASUSTEK COMPUTER INC. 0 0 1 2 2 5
BEHAVIOR TECH COMPUTER CORP. 0 0 0 2 3 5
COMPAQ COMPUTER CORPORATION, INC. 3 0 2 0 0 5
DENON, LTD. 0 0 0 3 2 5
DOUG CARSON & ASSOCIATES, INC. 0 0 3 0 2 5
MECHANICAL RESEARCH CORPORATION 0 1 0 1 3 5
MICRON ELECTRONICS, INC. 3 2 0 0 0 5
SAMSUNG ELECTRO-MECHANICS CO., LTD. 1 1 1 0 2 5
THOMSON-CSF 1 1 1 1 1 5
VISTEON GLOBAL TECHNOLOGIES, INC. 1 2 0 0 2 5
WINBOND ELECTRONICS CORP. 1 2 2 0 0 5


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Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

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email: oeip@uspto.gov

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