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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 1998 - 2002 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 310, Electrical Generator or Motor Structure

( 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 1998 1999 2000 2001 2002 Total
~Individually Owned Patent 73 78 65 71 70 357
MURATA MANUFACTURING CO., LTD. 22 26 35 36 38 157
MITSUBISHI DENKI KABUSHIKI KAISHA 11 15 31 38 56 151
GENERAL ELECTRIC COMPANY 22 24 23 32 40 141
DENSO CORPORATION 5 32 24 28 27 116
CANON KABUSHIKI KAISHA 19 23 30 21 11 104
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 18 20 15 24 21 98
ROBERT BOSCH GMBH 2 5 20 30 25 82
NIKON CORPORATION 21 14 18 13 12 78
HITACHI, LTD 6 9 8 16 22 61
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 18 7 17 10 9 61
NEC CORPORATION 14 15 19 10 2 60
SIEMENS AKTIENGESELLSCHAFT 9 4 12 20 10 55
EMERSON ELECTRIC CO. 15 13 13 8 4 53
MINOLTA CAMERA CO., LTD. 5 11 9 16 10 51
NGK INSULATORS LTD. 5 7 4 9 24 49
ASMO CO., LTD. 4 2 9 17 15 47
SANKYO SEIKI MFG. CO., LTD. 7 10 5 10 9 41
SEIKO INSTRUMENTS INC. 2 1 10 12 16 41
SEIKO EPSON CORPORATION 6 8 11 6 8 39
SAMSUNG ELECTRONICS CO., LTD. 9 9 10 5 2 35
TOSHIBA CORPORATION 6 7 7 9 6 35
SAMSUNG ELECTRO-MECHANICS CO., LTD. 8 8 2 5 8 31
SANYO ELECTRIC CO., LTD. 3 5 5 5 10 28
MITSUBA CORPORATION 5 10 2 2 5 24
FUJITSU LIMITED 7 7 1 3 5 23
MOTOROLA, INC. 5 10 4 3 1 23
NIPPONDENSO CO., LTD. 22 0 1 0 0 23
SIEMENS WESTINGHOUSE POWER CORPORATION 0 3 6 5 8 22
VALEO EQUIPEMENTS ELECTRIQUES MOTEUR 0 5 6 4 7 22
SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD. 0 1 3 4 12 20
TDK CORPORATION 0 2 4 7 7 20
U.S. PHILIPS CORPORATION 7 7 3 1 2 20
ANORAD CORP. 3 10 2 2 2 19
RELIANCE ELECTRIC INDUSTRIAL COMPANY 2 10 6 0 0 18
SIEMENS CANADA LTD. 2 9 4 2 1 18
ASEA BROWN BOVERI AKTIENGESELLSCHAFT 7 4 3 3 0 17
CTS CORPORATION 1 4 2 7 3 17
FACE INTERNATIONAL CORP. 2 1 7 4 3 17
FANUC LTD. 5 4 3 3 2 17
NIDEC CORPORATION 3 3 5 4 2 17
ALPS ELECTRIC CO., LTD. 1 4 3 6 2 16
JAPAN SERVO CO., LTD. 3 1 5 5 2 16
EBARA CORPORATION 4 1 3 3 4 15
INTERNATIONAL BUSINESS MACHINES CORPORATION 2 2 4 2 5 15
UNITED STATES OF AMERICA, NAVY 4 1 1 4 5 15
KOYO SEIKO COMPANY, LTD. 7 0 2 2 3 14
PENN STATE RESEARCH FOUNDATION, INC. 5 2 1 5 1 14
SUMITOMO ELECTRIC INDUSTRIES CO., LTD. 6 1 0 2 5 14
SWITCHED RELUCTANCE DRIVES LTD. 7 3 3 0 1 14
ACTIVE POWER, INC. 0 7 3 3 0 13
DELPHI TECHNOLOGIES, INC. 0 0 0 4 9 13
ETA SA FABRIQUES D'EBAUCHES OF GRANGES 5 3 3 0 2 13
FORD GLOBAL TECHNOLOGIES, INC. 2 4 1 2 4 13
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 5 2 2 2 2 13
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 4 4 3 1 1 13
NISSAN MOTOR COMPANY, LIMITED 2 0 2 2 7 13
OKUMA CORP. 2 2 4 4 1 13
SANDIA CORPORATION 1 3 1 5 3 13
ACUSON CORPORATION 0 2 3 1 6 12
HONEYWELL INTERNATIONAL INC. 0 0 0 8 4 12
ITT MANUFACTURING ENTERPRISES, INC. 0 6 3 3 0 12
JOHNSON ELECTRIC S.A. 4 3 4 1 0 12
MAGNA FORCE, INC. 4 4 2 1 1 12
RELIANCE ELECTRIC TECHNOLOGIES, LLC 0 0 3 7 2 12
SEAGATE TECHNOLOGY, INCORPORATED 3 5 3 1 0 12
SUNDSTRAND CORPORATION 5 6 1 0 0 12
TOKYO PARTS INDUSTRIAL CO., LTD. 0 1 2 3 6 12
CAMCO INTERNATIONAL INC. 0 1 3 5 2 11
CHRYSLER MOTORS CORPORATION 9 1 1 0 0 11
SEAGATE TECHNOLOGY, LLC 0 0 3 5 3 11
TOYOTA JIDOSHA K.K. 4 3 2 1 1 11
A. O. SMITH CORPORATION 1 0 6 1 2 10
AISIN SEIKI KABUSHIKI KAISHA 2 5 2 0 1 10
ELECTRIC BOAT CORPORATION 0 3 5 0 2 10
FORD MOTOR COMPANY 4 4 1 0 1 10
HEWLETT-PACKARD COMPANY 2 3 3 1 1 10
LG ELECTRONICS INC. 1 1 2 3 3 10
LUCENT TECHNOLOGIES INC. 1 3 3 3 0 10
MABUCHI MOTOR CO., LTD 2 1 0 3 4 10
SONY CORPORATION 1 2 2 4 1 10
TRW INC. 0 2 2 5 1 10
VISTEON GLOBAL TECHNOLOGIES, INC. 0 0 0 6 4 10
ACTIVE CONTROL EXPERTS, INC. 0 1 2 2 4 9
DELTA ELECTRONICS INC. 0 2 3 3 1 9
EASTMAN KODAK COMPANY 2 2 2 3 0 9
MANNESMANN SACHS AG 0 0 0 2 7 9
SATCON TECHNOLOGY CORPORATION 4 2 2 1 0 9
SULZER ELECTRONICS AG 0 1 2 5 1 9
TAMAGAWA SEIKI KABUSHIKI KAISHA 3 2 2 1 1 9
UNIT PARTS COMPANY 0 2 3 3 1 9
ALLIED-SIGNAL INC. 0 2 2 3 1 8
AMETEK, INC. 4 1 2 0 1 8
BLACK & DECKER INC. 1 1 3 2 1 8
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 1 2 3 2 8
GENERAL MOTORS CORPORATION 1 4 2 1 0 8
LOCKHEED MARTIN ENERGY RESEARCH CORPORATION 2 4 1 1 0 8
MASSACHUSETTS INSTITUTE OF TECHNOLOGY 0 2 2 4 0 8
MCNC 0 4 2 1 1 8
NSK LIMITED 1 1 3 3 0 8
PAPST-MOTOREN KG 2 1 2 2 1 8
UNITED STATES OF AMERICA, ARMY 3 1 1 2 1 8
AMERICAN SUPERCONDUCTOR CORPORATION 1 0 2 1 3 7
CITIZEN WATCH CO., LTD. 1 2 0 3 1 7
DANA CORPORATION 3 1 2 1 0 7
EATON CORPORATION 1 2 1 1 2 7
HITACHI METALS LTD. 4 0 0 2 1 7
INTERELECTRIC AG 2 2 1 0 2 7
MEASUREMENT SPECIALTIES, INC. 0 1 0 3 3 7
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 2 2 1 1 1 7
VALEO SYSTEMES D'ESSUYAGE 2 3 0 1 1 7
WESTINGHOUSE ELECTRIC CORP. 6 1 0 0 0 7
WILO GMBH 0 0 2 3 2 7
ABB RESEARCH LTD. 0 1 1 1 3 6
AGILENT TECHNOLOGIES, INC. 0 0 0 3 3 6
AISIN AW CO., LTD. 2 4 0 0 0 6
CATERPILLAR INC. 0 2 0 1 3 6
EMPRESA BRAZILEIRA DE COMPRESSORES S/A EMBRACO 0 1 0 1 4 6
HAMILTON SUNDSTRAND CORPORATION 0 0 1 3 2 6
HILTI AKTIENGESELLSCHAFT 1 1 1 1 2 6
ITT AUTOMOTIVE EUROPE GMBH 5 0 1 0 0 6
JDS UNIPHASE INC. 0 0 0 6 0 6
LUCAS INDUSTRIES PUBLIC LTD. COMPANY 0 3 1 2 0 6
MANNESMANN VDO AG 0 0 0 3 3 6
MIRAE CORPORATION 0 0 0 2 4 6
NIPPON THOMPSON CO., LTD. 4 0 0 1 1 6
PRECISION MOTORS DEUTSCHE MINEBEA GMBH 0 2 0 1 3 6
ROSEN MOTORS, L.P. 3 1 1 1 0 6
SAWTEK, INC. 0 2 4 0 0 6
SEIKO SEIKI KABUSHIKI KAISHA 3 0 1 2 0 6
SYSTEMS, MACHINES, AUTOMATION COMPONENTS CORP. 3 1 2 0 0 6
TAIYO YUDEN CO., LTD. 0 0 0 1 5 6
TOKIN CORPORATION 2 2 1 1 0 6
TRI DELTA INDUSTRIES, INC. 1 1 4 0 0 6
VALEO ELECTRICAL SYSTEMS, INC. 0 1 0 3 2 6
AISAN INDUSTRY CO., LTD. 0 2 1 1 1 5
ALCATEL 0 1 0 1 3 5
ASEA BROWN BOVERI AB 0 0 0 0 5 5
BOEING COMPANY 1 0 1 3 0 5
BRITISH NUCLEAR FUELS PLC 2 2 1 0 0 5
GENERAL ELECTRIC CANADA INC. 1 2 0 2 0 5
J. M. VOITH TURBO GMBH & CO. KG 2 1 0 1 1 5
JEUMONT INDUSTRIE 1 1 0 2 1 5
NANOMOTION LTD. 2 1 1 0 1 5
NTN CORPORATION 0 0 2 2 1 5
OCEAN POWER TECHNOLOGIES, INC. 1 0 0 2 2 5
OLYMPUS OPTICAL CO., LTD. 1 1 1 1 1 5
PACIFIC SCIENTIFIC INSTRUMENTS COMPANY 1 1 2 0 1 5
RYOBI NORTH AMERICA, CORP. 0 5 0 0 0 5
SAWAFUJI ELECTRIC COMPANY, LTD. 2 1 1 1 0 5
SHOP-VAC CORPORATION 0 0 3 1 1 5
SIEMENS ELECTRIC LIMITED 4 1 0 0 0 5
SMC KABUSHIKI KAISHA 3 0 1 0 1 5
SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE 2 3 0 0 0 5
THOMSON-CSF 0 0 1 1 3 5
TURBO GENSET CO, LTD. 0 1 1 1 2 5
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 0 3 2 0 5
UNITED TECHNOLOGIES AUTOMOTIVE, INC. 1 4 0 0 0 5
WISCONSIN ALUMNI RESEARCH FOUNDATION 2 0 1 0 2 5
YKK CORPORATION 0 1 0 2 2 5
ZEXEL CORPORATION 3 1 0 1 0 5


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