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

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 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 720, Dynamic Optical 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 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
SONY CORPORATION 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 4 4 3 7 1 7 8 9 12 4 13 15 21 25 16 34 26 27 19 31 38 32 23 27 408
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 2 0 1 5 4 1 0 8 8 11 14 6 15 16 15 18 15 21 24 19 0 207
SAMSUNG ELECTRONICS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 6 4 3 4 14 11 8 5 15 6 9 15 28 26 28 11 195
PIONEER ELECTRONIC CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 8 4 6 7 12 10 11 13 7 1 2 2 3 2 4 1 10 2 1 2 0 0 0 0 0 110
TEAC CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 2 1 2 2 0 2 2 2 8 6 7 3 6 6 9 7 2 6 8 83
~INDIVIDUALLY OWNED PATENT 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 1 1 1 1 1 2 1 0 0 3 3 1 5 4 5 2 6 6 7 8 6 1 7 7 82
TOSHIBA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 3 1 1 3 6 3 4 2 3 0 0 2 2 16 1 2 3 4 0 0 4 2 2 2 4 74
LITE-ON IT CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 10 10 9 14 17 9 73
PIONEER CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9 10 5 9 13 9 9 7 72
U.S. PHILIPS CORPORATION 0 0 0 0 0 0 0 1 0 0 1 2 0 1 2 1 4 4 8 5 7 4 3 7 7 1 1 3 1 1 0 2 1 0 0 0 0 0 0 0 0 67
FUNAI ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 2 4 5 6 15 13 11 6 65
HITACHI, LTD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 1 1 2 3 1 1 3 2 4 4 6 7 7 2 6 2 2 4 4 65
MITSUBISHI DENKI KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 3 1 2 0 0 0 2 4 2 1 8 7 6 7 5 5 4 2 62
LG ELECTRONICS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 4 11 5 7 2 4 4 10 6 57
FUJITSU LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 1 2 2 0 4 2 6 9 6 2 4 2 2 2 47
SANYO ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 2 3 0 0 0 0 2 2 0 2 1 2 9 4 5 1 0 2 39
ALPS ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 6 1 0 0 2 0 0 0 0 0 0 2 3 6 6 4 1 0 0 2 0 0 37
ALPINE ELECTRONICS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 2 0 0 0 0 0 3 1 1 4 2 1 6 2 4 2 4 0 35
DAEWOO ELECTRONICS COMPANY, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 10 12 3 3 1 0 0 0 0 0 0 0 0 0 34
BEN Q CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 9 11 4 3 0 31
CANON KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 3 0 4 2 1 0 0 2 1 0 1 0 1 1 2 4 1 1 31
MITSUMI ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 4 2 6 2 0 4 5 1 4 0 0 31
RICOH COMPANY, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 1 1 2 0 1 3 3 3 1 1 0 0 0 2 2 5 2 1 31
TDK CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 1 0 2 0 0 2 0 1 0 1 4 3 1 1 1 4 3 2 2 31
HITACHI MAXELL, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 2 4 0 0 0 2 1 0 5 0 0 2 2 0 1 3 1 2 2 30
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 4 3 6 3 6 1 30
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 0 0 0 2 0 1 1 3 0 1 0 0 1 0 0 5 2 3 4 4 0 30
CLARION CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 2 0 1 1 0 1 0 0 4 3 3 2 2 3 0 0 27
HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 11 7 27
NAKAMICHI CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 3 2 4 7 4 0 0 2 1 0 0 0 0 0 27
INTERNATIONAL BUSINESS MACHINES CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 0 2 1 2 4 2 1 2 0 1 1 0 0 1 1 0 3 1 26
NEC CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 2 4 2 5 0 3 1 3 3 0 0 0 25
TANASHIN DENKI CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 2 4 0 4 6 0 2 1 0 0 23
PANASONIC CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 21 22
VICTOR COMPANY OF JAPAN, LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 2 0 1 0 0 1 1 0 0 0 0 0 0 0 0 4 1 0 0 0 0 1 3 2 1 1 22
OLYMPUS OPTICAL CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 1 2 0 3 0 4 5 0 2 1 0 0 0 0 0 0 0 21
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 4 3 2 4 2 1 0 0 0 20
STAAR, S.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 2 3 0 2 0 1 0 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 0 20
EASTMAN KODAK COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2 4 0 1 2 0 1 0 1 0 2 3 0 0 0 0 1 0 0 0 0 0 19
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 6 2 3 3 19
SAMSUNG ELECTRO-MECHANICS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 3 5 0 3 3 2 18
HEWLETT-PACKARD COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 6 5 0 0 0 0 0 0 0 17
KABUSHIKI KAISHA KENWOOD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 2 1 0 0 3 5 1 1 1 0 1 0 17
RCA CORPORATION 0 0 0 0 0 0 0 0 0 3 1 5 3 0 0 2 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17
HON HAI PRECISION IND. CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 8 5 16
ORION ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 5 4 1 16
FUJI PHOTO FILM CO., LTD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 4 5 0 0 0 15
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 1 0 1 3 1 1 1 0 0 0 0 0 0 0 12
ASUSTEK COMPUTER INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 2 3 1 3 12
DEUTSCHE THOMSON-BRANDT GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 2 0 1 0 0 1 0 0 1 0 2 0 0 1 1 0 0 0 12
NIPPON GAKKI SEIZO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
BEHAVIOR TECH COMPUTER CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 3 0 2 1 0 2 0 0 0 11
IMATION CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 1 2 1 0 1 1 0 11
SONY COMPUTER ENTERTAINMENT INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 2 0 1 1 2 0 11
HITACHI-LG DATA STORAGE, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 5 10
THOMSON LICENSING 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 2 3 10
DISCOVISION ASSOCIATES 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 2 1 0 1 0 0 0 0 0 0 0 9
MICRO-STAR INTERNATIONAL CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 2 0 1 1 9
DAI NIPPON INSATSU KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3 1 0 2 0 0 0 0 0 0 0 0 0 0 0 8
SEAGATE TECHNOLOGY, LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 2 8
STORAGE TECHNOLOGY CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 3 1 1 0 8
YAMAHA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 2 0 1 1 0 0 0 0 0 1 0 8
GOLDSTAR COMPANY, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 7
QUANTA STORAGE, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 5 1 7
ALCO ELECTRONICS, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 1 0 0 1 0 0 0 1 6
FUJIFILM CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 3 6
IOMEGA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1 0 1 0 0 0 0 0 6
OPTICORD, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 1 1 1 0 0 0 0 0 0 0 0 0 6
VMEDIA RESEARCH, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 2 6
DELTA ELECTRONICS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 2 5
LITERAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SANKYO SEIKI MFG. CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 0 0 1 0 0 0 0 0 5
STORAGE TECHNOLOGY PARTNERS II 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 5
TAIYO YUDEN CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 1 0 0 5


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