~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 |