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Patents Grants
last 30 patents
Information
Patent Grant
Electroluminescent light emitting element having a metal electrode...
Patent number
7,285,908
Issue date
Oct 23, 2007
Rohm Ltd.
Gosuke Sakamoto
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Optical transceiver
Patent number
7,200,335
Issue date
Apr 3, 2007
Rohm Co., Ltd.
Masahiko Tsumori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Semiconductor light-emitting device
Patent number
7,173,287
Issue date
Feb 6, 2007
Rohm Co., Ltd.
Hironobu Sai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Display device and method of driving the same
Patent number
7,167,147
Issue date
Jan 23, 2007
Rohm Co. Ltd.
Haruo Tanaka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Semiconductor light emitting element and method of making the same
Patent number
7,129,103
Issue date
Oct 31, 2006
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting element and method of making the same
Patent number
6,898,340
Issue date
May 24, 2005
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical transmitter having photodiode
Patent number
6,856,637
Issue date
Feb 15, 2005
Rohm Co., Ltd.
Masahiko Tsumori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching element and method of making the same
Patent number
6,815,733
Issue date
Nov 9, 2004
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic EL device and method of manufacturing the same
Patent number
6,744,199
Issue date
Jun 1, 2004
Rohm Co., Ltd.
Haruo Tanaka
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Surface light emitting devices
Patent number
6,713,787
Issue date
Mar 30, 2004
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Light source device for laser beam printer
Patent number
6,711,198
Issue date
Mar 23, 2004
Rohm Co. Ltd.
Jun Ichihara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic electroluminescent device with color filter entirely coveri...
Patent number
6,686,692
Issue date
Feb 3, 2004
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light receiving and emitting compound element and optical pick-up d...
Patent number
6,671,236
Issue date
Dec 30, 2003
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Sheet-like display medium including switching layer, and display el...
Patent number
6,646,780
Issue date
Nov 11, 2003
Rohm Co., Ltd.
Haruo Tanaka
G02 - OPTICS
Information
Patent Grant
Minuscule light-emitting device and organic EL device using the same
Patent number
6,504,299
Issue date
Jan 7, 2003
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Surface light emitting devices
Patent number
6,429,461
Issue date
Aug 6, 2002
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Head mounted display
Patent number
6,388,814
Issue date
May 14, 2002
Rohm Co., Ltd.
Haruo Tanaka
G02 - OPTICS
Information
Patent Grant
Optical communication module
Patent number
6,353,491
Issue date
Mar 5, 2002
Rohm Co., Ltd.
Haruo Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of manufacturing organic EL device
Patent number
6,338,979
Issue date
Jan 15, 2002
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting appliance
Patent number
6,320,322
Issue date
Nov 20, 2001
Rohm Co., Ltd.
Haruo Tanaka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Gallium nitride type laser for emitting blue light
Patent number
6,298,079
Issue date
Oct 2, 2001
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser
Patent number
6,274,891
Issue date
Aug 14, 2001
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device mounted with a light emitting device
Patent number
6,121,656
Issue date
Sep 19, 2000
Rohm Co. Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor laser and manufacturing method thereof
Patent number
5,974,069
Issue date
Oct 26, 1999
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and equipment for manufacturing semiconductor device
Patent number
5,940,684
Issue date
Aug 17, 1999
Rohm, Co., Ltd.
Yukio Shakuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device
Patent number
5,760,439
Issue date
Jun 2, 1998
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup
Patent number
5,712,844
Issue date
Jan 27, 1998
Rohm Co. Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical branching and coupling device using an aspherical lens
Patent number
5,671,305
Issue date
Sep 23, 1997
Rohm Co., Ltd.
Haruo Tanaka
G02 - OPTICS
Information
Patent Grant
Semiconductor laser system
Patent number
5,619,521
Issue date
Apr 8, 1997
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup
Patent number
5,615,201
Issue date
Mar 25, 1997
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Nitride Semiconductor Light Emitting Device
Publication number
20090127572
Publication date
May 21, 2009
ROHM CO., LTD.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Electroluminescence light emitting element and manufacturing method...
Publication number
20070259586
Publication date
Nov 8, 2007
Gosuke Sakamoto
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Organic electroluminescent display device
Publication number
20070122938
Publication date
May 31, 2007
Haruo Tanaka
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor light-emitting device
Publication number
20060054908
Publication date
Mar 16, 2006
Hironobu Sai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor light emitting element and method of making the same
Publication number
20050194599
Publication date
Sep 8, 2005
ROHM CO., LTD.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light emitting devices
Publication number
20040155580
Publication date
Aug 12, 2004
Rohm Co., Ltd.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Application
Switching element and method of making the same
Publication number
20040108514
Publication date
Jun 10, 2004
ROHM CO., LTD.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor light emitting element and method of making the same
Publication number
20030232455
Publication date
Dec 18, 2003
ROHM CO., LTD.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Electroluminescence light emitting element and manufacturing method...
Publication number
20030193287
Publication date
Oct 16, 2003
Gosuke Sakamoto
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Optical transmitter having photodiode
Publication number
20030063651
Publication date
Apr 3, 2003
Masahiko Tsumori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical transceiver
Publication number
20030048511
Publication date
Mar 13, 2003
Masahiko Tsumori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Sheet-like display medium including switching layer, and display el...
Publication number
20030020393
Publication date
Jan 30, 2003
ROHM CO., LTD.
Haruo Tanaka
G02 - OPTICS
Information
Patent Application
Organic EL element, organic EL element array and organic EL display
Publication number
20020190664
Publication date
Dec 19, 2002
ROHM CO., LTD.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Surface light emitting devices
Publication number
20020158263
Publication date
Oct 31, 2002
Rohm Co., Ltd.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Display device and method of driving the same
Publication number
20010007447
Publication date
Jul 12, 2001
ROHM CO., LTD.
Haruo Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light receiving and emitting compound element and optical pick-up d...
Publication number
20010007543
Publication date
Jul 12, 2001
ROHM CO., LTD.
Haruo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Application
Head mounted display
Publication number
20010005285
Publication date
Jun 28, 2001
ROHM CO., LTD.
Haruo Tanaka
G02 - OPTICS