Takashi Udagawa

Person

Chichibu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Group III nitride semiconductor light-emitting element and method f...
- Patent number 9,324,912
- Issue date Apr 26, 2016
- Toyoda Gosei Co., Ltd.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group iii nitride semiconductor light-emitting element
- Patent number 9,076,913
- Issue date Jul 7, 2015
- Toyoda Gosei Co., Ltd.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride semiconductor light-emitting device
- Patent number 8,389,975
- Issue date Mar 5, 2013
- Showa Denko K.K.
- Tomo Kikuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light-emitting diode
- Patent number 8,299,451
- Issue date Oct 30, 2012
- Showa Denko K.K.
- Takashi Udagawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Group III nitride semiconductor light-emitting device
- Patent number 8,227,790
- Issue date Jul 24, 2012
- Showa Denko K.K.
- Tomo Kikuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device having a group-III nitride superlattice layer...
- Patent number 8,222,674
- Issue date Jul 17, 2012
- Showa Denko K.K.
- Tadashi Ohachi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for production of silicon carbide layer, gallium nitride sem...
- Patent number 8,216,367
- Issue date Jul 10, 2012
- Showa Denko K.K.
- Takashi Udagawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
Light-emitting diode and light-emitting diode lamp
- Patent number 8,134,176
- Issue date Mar 13, 2012
- Showa Denko K.K.
- Ryouichi Takeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound semiconductor device
- Patent number 8,084,781
- Issue date Dec 27, 2011
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light-emitting diode and light-emitting diode lamp
- Patent number 8,071,991
- Issue date Dec 6, 2011
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a semiconductor device having a group-III n...
- Patent number 8,043,977
- Issue date Oct 25, 2011
- Showa Denko K.K.
- Tadashi Ohachi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Boron phosphide-based semiconductor light-emitting device
- Patent number 8,026,525
- Issue date Sep 27, 2011
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device including non-stoichiometric silicon carbide l...
- Patent number 7,989,926
- Issue date Aug 2, 2011
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound semiconductor light-emitting device and production method...
- Patent number 7,790,481
- Issue date Sep 7, 2010
- Showa Denko K.K.
- Ryouichi Takeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gallium nitride-based semiconductor stacked structure, method for f...
- Patent number 7,781,866
- Issue date Aug 24, 2010
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gallium nitride-based semiconductor stacked structure, production m...
- Patent number 7,772,599
- Issue date Aug 10, 2010
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gallium nitride-based semiconductor stacked structure
- Patent number 7,759,149
- Issue date Jul 20, 2010
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for fabricating semiconductor layer and light-emitting diode
- Patent number 7,759,225
- Issue date Jul 20, 2010
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound semiconductor light-emitting device with AlGaInP light-emi...
- Patent number 7,732,831
- Issue date Jun 8, 2010
- Showa Denko K.K.
- Ryouichi Takeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound semiconductor light-emitting diode
- Patent number 7,732,830
- Issue date Jun 8, 2010
- Showa Denko K.K.
- Ryouichi Takeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound semiconductor light-emitting device including p-type undop...
- Patent number 7,732,832
- Issue date Jun 8, 2010
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Boron phosphide-based compound semiconductor device, production met...
- Patent number 7,646,040
- Issue date Jan 12, 2010
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device, semiconductor layer and production method the...
- Patent number 7,622,398
- Issue date Nov 24, 2009
- Showa Denko K.K.
- Takashi Udagawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
N-type ohmic electrode for n-type group III nitride semiconductor,...
- Patent number 7,598,593
- Issue date Oct 6, 2009
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride semiconductor light-emitting device, forming meth...
- Patent number 7,576,365
- Issue date Aug 18, 2009
- Showa Denko K.K.
- Kazuhiro Mitani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound semiconductor device, production method of compound semico...
- Patent number 7,573,075
- Issue date Aug 11, 2009
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ohmic electrode structure, compound semiconductor light emitting de...
- Patent number 7,538,361
- Issue date May 26, 2009
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Boron phoshide-based compound semiconductor device, production meth...
- Patent number 7,508,010
- Issue date Mar 24, 2009
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound semiconductor light-emitting device having pn-junction typ...
- Patent number 7,498,612
- Issue date Mar 3, 2009
- Showa Denko K.K.
- Michiya Odawara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride semiconductor light-emitting device and method of...
- Patent number 7,495,261
- Issue date Feb 24, 2009
- Showa Denko K.K.
- Katsuki Kusunoki
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD F...
- Publication number 20140183580
- Publication date Jul 3, 2014
- TOYODA GOSEI CO., LTD.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT
- Publication number 20140103293
- Publication date Apr 17, 2014
- TOYODA GOSEI CO., LTD.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE HAVING A GROUP-III N...
- Publication number 20120007050
- Publication date Jan 12, 2012
- THE DOSHISHA
- Tadashi OHACHI
- C30 - CRYSTAL GROWTH
Information Patent Application
GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING DEVICE
- Publication number 20100288999
- Publication date Nov 18, 2010
- Showa Denko K.K.
- Tomo Kikuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING DEVICE
- Publication number 20100288998
- Publication date Nov 18, 2010
- Showa Denko K.K.
- Tomo Kikuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT-EMITTING DIODE AND LIGHT-EMITTING DIODE LAMP
- Publication number 20100155742
- Publication date Jun 24, 2010
- SHOWA DENKO K.K.
- Rouichi Takeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND SEMICONDUCTOR DEVICE
- Publication number 20090309135
- Publication date Dec 17, 2009
- Showa Denko K.K.
- Takashi UDAGAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATION THEREOF
- Publication number 20090267081
- Publication date Oct 29, 2009
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT-EMITTING DIODE AND LIGHT-EMITTING DIODE LAMP
- Publication number 20090152579
- Publication date Jun 18, 2009
- SHOWA DENKO K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR FABRICATING SEMICONDUCTOR LAYER AND LIGHT-EMITTING DIODE
- Publication number 20090127571
- Publication date May 21, 2009
- Showa Denko K.K.
- Takashi Udagawa
- C30 - CRYSTAL GROWTH
Information Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
- Publication number 20090127583
- Publication date May 21, 2009
- Showa Denko K.K.
- Tadashi Ohachi
- C30 - CRYSTAL GROWTH
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING DIODE
- Publication number 20090114900
- Publication date May 7, 2009
- SHOWA DENKO K.K.
- Takashi Udagawa
- B82 - NANO-TECHNOLOGY
Information Patent Application
Method for production of silicon carbide layer, gallium nitride sem...
- Publication number 20090045412
- Publication date Feb 19, 2009
- Showa Denko K.K.
- Takashi Udagawa
- C30 - CRYSTAL GROWTH
Information Patent Application
Gallium Nitride-Based Semiconductor Stacked Structure
- Publication number 20080283823
- Publication date Nov 20, 2008
- SHOWA DENKO K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE AND PRODUCTION METHOD...
- Publication number 20080268562
- Publication date Oct 30, 2008
- Showa Denko K.K.
- Ryouichi TAKEUCHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BORON PHOSPHIDE-BASED SEMICONDUCTOR LIGHT-EMITTING DEVICE AND PRODU...
- Publication number 20080157079
- Publication date Jul 3, 2008
- Showa Denko K.K.
- Takashi UDAGAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Gallium Nitride-Based Semiconductor Stacked Structure, Method for F...
- Publication number 20080135852
- Publication date Jun 12, 2008
- SHOWA DENKO K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Gallium Nitride-Based Semiconductor Stacked Structure, Production M...
- Publication number 20080067522
- Publication date Mar 20, 2008
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Group III Nitride Semiconductor Light-Emitting Device and Method of...
- Publication number 20070278509
- Publication date Dec 6, 2007
- Katsuki Kusunoki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor device, semiconductor layer and production method the...
- Publication number 20070259510
- Publication date Nov 8, 2007
- SHOWA A DENKO K.K.
- Takashi Udagawa
- C30 - CRYSTAL GROWTH
Information Patent Application
P-N Junction-Type Compound Semiconductor Light-Emitting Diode
- Publication number 20070246719
- Publication date Oct 25, 2007
- Showa Denko K.K.
- Michiya Odawara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Compound Semiconductor Light-Emitting Device
- Publication number 20070221946
- Publication date Sep 27, 2007
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Compound Semiconductor Light-Emitting Device And Production Method...
- Publication number 20070215886
- Publication date Sep 20, 2007
- Ryouichi Takeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Compound Semiconductor Device, Production Method Of Compound Semico...
- Publication number 20070200114
- Publication date Aug 30, 2007
- Takashi Udagawa
- C30 - CRYSTAL GROWTH
Information Patent Application
Boron Phosphide-Based Semiconductor Light-Emitting Device
- Publication number 20070194335
- Publication date Aug 23, 2007
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Group III nitride semiconductor light-emitting device, forming meth...
- Publication number 20070170458
- Publication date Jul 26, 2007
- SHOWA DENKO K.K.
- Kazuhiro Mitani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Compound semiconductor light-emitting diode
- Publication number 20070164304
- Publication date Jul 19, 2007
- Ryouichi Takeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Compound semiconductor light-emitting device having pn-junction typ...
- Publication number 20070131959
- Publication date Jun 14, 2007
- SHOWA DENKO K.K.
- Michiya Odawara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
N-type ohmic electrode for n-type group III nitride semiconductor,...
- Publication number 20070108453
- Publication date May 17, 2007
- SHOWA DENKO K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ohmic electrode structure, compound semiconductor light emitting de...
- Publication number 20060214182
- Publication date Sep 28, 2006
- Showa Denko K.K.
- Takashi Udagawa
- H01 - BASIC ELECTRIC ELEMENTS

Takashi Udagawa

Person

Patents Grantslast 30 patents

Group III nitride semiconductor light-emitting element and method f...

Group iii nitride semiconductor light-emitting element

Group III nitride semiconductor light-emitting device

Semiconductor light-emitting diode

Group III nitride semiconductor light-emitting device

Semiconductor device having a group-III nitride superlattice layer...

Method for production of silicon carbide layer, gallium nitride sem...

Light-emitting diode and light-emitting diode lamp

Compound semiconductor device

Light-emitting diode and light-emitting diode lamp

Method of manufacturing a semiconductor device having a group-III n...

Boron phosphide-based semiconductor light-emitting device

Semiconductor device including non-stoichiometric silicon carbide l...

Compound semiconductor light-emitting device and production method...

Gallium nitride-based semiconductor stacked structure, method for f...

Gallium nitride-based semiconductor stacked structure, production m...

Gallium nitride-based semiconductor stacked structure

Method for fabricating semiconductor layer and light-emitting diode

Compound semiconductor light-emitting device with AlGaInP light-emi...

Compound semiconductor light-emitting diode

Compound semiconductor light-emitting device including p-type undop...

Boron phosphide-based compound semiconductor device, production met...

Semiconductor device, semiconductor layer and production method the...

N-type ohmic electrode for n-type group III nitride semiconductor,...

Group III nitride semiconductor light-emitting device, forming meth...

Compound semiconductor device, production method of compound semico...

Ohmic electrode structure, compound semiconductor light emitting de...

Boron phoshide-based compound semiconductor device, production meth...

Compound semiconductor light-emitting device having pn-junction typ...

Group III nitride semiconductor light-emitting device and method of...

Patents Applicationslast 30 patents

GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD F...

GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT

METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE HAVING A GROUP-III N...

GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING DEVICE

GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING DEVICE

LIGHT-EMITTING DIODE AND LIGHT-EMITTING DIODE LAMP

COMPOUND SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATION THEREOF

LIGHT-EMITTING DIODE AND LIGHT-EMITTING DIODE LAMP

METHOD FOR FABRICATING SEMICONDUCTOR LAYER AND LIGHT-EMITTING DIODE

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

SEMICONDUCTOR LIGHT-EMITTING DIODE

Method for production of silicon carbide layer, gallium nitride sem...

Gallium Nitride-Based Semiconductor Stacked Structure

COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE AND PRODUCTION METHOD...

BORON PHOSPHIDE-BASED SEMICONDUCTOR LIGHT-EMITTING DEVICE AND PRODU...

Gallium Nitride-Based Semiconductor Stacked Structure, Method for F...

Gallium Nitride-Based Semiconductor Stacked Structure, Production M...

Group III Nitride Semiconductor Light-Emitting Device and Method of...

Semiconductor device, semiconductor layer and production method the...

P-N Junction-Type Compound Semiconductor Light-Emitting Diode

Compound Semiconductor Light-Emitting Device

Compound Semiconductor Light-Emitting Device And Production Method...

Compound Semiconductor Device, Production Method Of Compound Semico...

Boron Phosphide-Based Semiconductor Light-Emitting Device

Group III nitride semiconductor light-emitting device, forming meth...

Compound semiconductor light-emitting diode

Compound semiconductor light-emitting device having pn-junction typ...

N-type ohmic electrode for n-type group III nitride semiconductor,...

Ohmic electrode structure, compound semiconductor light emitting de...