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Toshiyuki OKUMURA
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Osaka-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Nitride semiconductor light-emitting element and method for produci...
Patent number
9,099,586
Issue date
Aug 4, 2015
Sharp Kabushiki Kaisha
Masaya Ueda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical amplifier device amplifying external light si...
Patent number
7,864,412
Issue date
Jan 4, 2011
Sharp Kabushiki Kaisha
Kyoko Matsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser, semiconductor laser driver and method of drivi...
Patent number
7,515,624
Issue date
Apr 7, 2009
Sharp Kabushiki Kaisha
Kyoko Matsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Variable demultiplexer
Patent number
7,356,218
Issue date
Apr 8, 2008
Sharp Kabushiki Kaisha
Yoshimichi Kato
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor optical amplifier device amplifying an externally app...
Patent number
7,274,010
Issue date
Sep 25, 2007
Sharp Kabushiki Kaisha
Kyoko Matsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Planar waveguide device
Patent number
7,251,390
Issue date
Jul 31, 2007
Sharp Kabushiki Kaisha
Yasuo Fukai
G02 - OPTICS
Information
Patent Grant
Nitride semiconductor light emitting device having electrode electr...
Patent number
7,199,398
Issue date
Apr 3, 2007
Sharp Kabushiki Kaisha
Tomoki Ono
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gallium nitride semiconductor light emitting device having multi-qu...
Patent number
7,183,569
Issue date
Feb 27, 2007
Sharp Kabushiki Kaisha
Toshiyuki Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photonic crystal and producing method thereof
Patent number
7,088,902
Issue date
Aug 8, 2006
Sharp Kabushiki Kaisha
Yoshimichi Katoh
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Gallium nitride type semiconductor laser device
Patent number
7,015,565
Issue date
Mar 21, 2006
Sharp Kabushiki Kaisha
Toshiyuki Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gallium nitride semiconductor light emitting device having multi-qu...
Patent number
6,956,882
Issue date
Oct 18, 2005
Sharp Kabushiki Kaisha
Toshiyuki Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride-type compound semiconductor laser device and laser apparatu...
Patent number
6,842,470
Issue date
Jan 11, 2005
Sharp Kabushiki Kaisha
Susumu Omi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing a gallium nitride type semiconductor laser...
Patent number
6,764,870
Issue date
Jul 20, 2004
Sharp Kabushiki Kaisha
Toshiyuki Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride semiconductor laser device and optical device using the same
Patent number
6,614,824
Issue date
Sep 2, 2003
Sharp Kabushiki Kaisha
Yuhzoh Tsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride-contained semiconductor laser element and optical informati...
Patent number
6,556,603
Issue date
Apr 29, 2003
Sharp Kabushiki Kaisha
Yukio Yamasaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride-type compound semiconductor laser device and laser apparatu...
Patent number
6,549,552
Issue date
Apr 15, 2003
Sharp Kabushiki Kaisha
Susumu Omi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gallium nitride type semiconductor laser device
Patent number
6,456,640
Issue date
Sep 24, 2002
Sharp Kabushiki Kaisha
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Gallium nitride semiconductor light emitting element with active la...
Patent number
6,377,597
Issue date
Apr 23, 2002
Sharp Kabushiki Kaisha
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Gallium nitride group semiconductor laser device and optical pickup...
Patent number
6,370,176
Issue date
Apr 9, 2002
Sharp Kabushiki Kaisha
Toshiyuki Okumura
G11 - INFORMATION STORAGE
Information
Patent Grant
Dielectric multilayered reflector
Patent number
5,841,584
Issue date
Nov 24, 1998
Sharp Kabushiki Kaisha
Kunihiro Takatani
G02 - OPTICS
Information
Patent Grant
Method of fabricating a semiconductor laser device
Patent number
5,658,824
Issue date
Aug 19, 1997
Sharp Kabushiki Kaisha
Shigetoshi Itoh
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor laser device having a resonator of a particular lengt...
Patent number
5,657,337
Issue date
Aug 12, 1997
Sharp Kabushiki Kaisha
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor laser device having a resonator of particular length...
Patent number
5,506,856
Issue date
Apr 9, 1996
Sharp Kabushiki Kaisha
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor laser device
Patent number
5,375,135
Issue date
Dec 20, 1994
Sharp Kabushiki Kaisha
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor laser device
Patent number
5,351,258
Issue date
Sep 27, 1994
Sharp Kabushiki Kaisha
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor laser device with window regions
Patent number
5,345,460
Issue date
Sep 6, 1994
Sharp Kabushiki Kaisha
Haruhisa Takiguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Buried stripe type semiconductor laser device
Patent number
5,335,241
Issue date
Aug 2, 1994
Sharp Kabushiki Kaisha
Toshiyuki Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Periodic gain-type semiconductor laser device
Patent number
5,182,758
Issue date
Jan 26, 1993
Sharp Kabushiki Kaisha
Mototaka Taneya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser device
Patent number
5,070,510
Issue date
Dec 3, 1991
Sharp Kabushiki Kaisha
Fumihiro Konushi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High resistive element
Patent number
5,049,970
Issue date
Sep 17, 1991
Sharp Kabushiki Kaisha
Kenichi Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL APPARATUS, LIGHT SOURCE APPARATUS, AND VEHICLE
Publication number
20150309235
Publication date
Oct 29, 2015
SHARP KABUSHIKI KAISHA
Yoshinobu KAWAGUCHI
G02 - OPTICS
Information
Patent Application
NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR PRODUCI...
Publication number
20130134388
Publication date
May 30, 2013
Masaya UEDA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL MEASUREMENT ANALYSIS DEVICE, STORAGE ROOM, ELECTROMAGNETIC-...
Publication number
20130010294
Publication date
Jan 10, 2013
Sharp Kabushiki Kaisha
Kyoko MATSUDA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL ISOLATOR
Publication number
20090003769
Publication date
Jan 1, 2009
Yasuo FUKAI
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR OPTICAL AMPLIFIER DEVICE AMPLIFYING EXTERNAL LIGHT SI...
Publication number
20080174856
Publication date
Jul 24, 2008
Kyoko Matsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Planar Waveguide device
Publication number
20070025658
Publication date
Feb 1, 2007
SHARP KABUSHIKI KAISHA
Yasuo Fukai
G02 - OPTICS
Information
Patent Application
Variable demultiplexer
Publication number
20060120665
Publication date
Jun 8, 2006
SHARP KABUSHIKI KAISHA
Yoshimichi Kato
G02 - OPTICS
Information
Patent Application
Semiconductor optical amplifier device amplifying an externally app...
Publication number
20060049336
Publication date
Mar 9, 2006
SHARP KABUSHIKI KAISHA
Kyoko Matsuda
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Gallium nitride semiconductor light emitting device having multi-qu...
Publication number
20050211971
Publication date
Sep 29, 2005
SHARP KABUSHIKI KAISHA
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Application
Photonic crystal and producing method thereof
Publication number
20040240834
Publication date
Dec 2, 2004
Yoshimichi Katoh
G02 - OPTICS
Information
Patent Application
Gallium nitride type semiconductor laser device
Publication number
20040217371
Publication date
Nov 4, 2004
Sharp Kabushiki Kaisha
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Application
Nitride semiconductor light emitting device having electrode electr...
Publication number
20040099870
Publication date
May 27, 2004
SHARP KABUSHIKI KAISHA
Tomoki Ono
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor laser, semiconductor laser driver and method of drivi...
Publication number
20040091009
Publication date
May 13, 2004
Kyoko Matsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Nitride-type compound semiconductor laser device and laser apparatu...
Publication number
20030103539
Publication date
Jun 5, 2003
Susumu Omi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Gallium nitride type semiconductor laser device
Publication number
20030012243
Publication date
Jan 16, 2003
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Application
Gallium nitride semiconductor light emitting device having multi-qu...
Publication number
20020085603
Publication date
Jul 4, 2002
Toshiyuki Okumura
B82 - NANO-TECHNOLOGY
Information
Patent Application
Nitride semiconductor laser device and optical device using the same
Publication number
20020054617
Publication date
May 9, 2002
Yuhzoh Tsuda
B82 - NANO-TECHNOLOGY