Tomokazu Katsuyama

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor optical device and method for manufacturing the same
- Patent number 11,126,021
- Issue date Sep 21, 2021
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- G02 - OPTICS
Information Patent Grant
Integrated semiconductor device
- Patent number 9,341,772
- Issue date May 17, 2016
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- G02 - OPTICS
Information Patent Grant
Integrated semiconductor device
- Patent number 9,235,002
- Issue date Jan 12, 2016
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for producing integrated optical device
- Patent number 8,741,670
- Issue date Jun 3, 2014
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for producing integrated optical device
- Patent number 8,637,338
- Issue date Jan 28, 2014
- Sumitomo Electric Industries Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for producing integrated optical device
- Patent number 8,637,337
- Issue date Jan 28, 2014
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method to form semiconductor laser diode with mesa structure buried...
- Patent number 8,227,275
- Issue date Jul 24, 2012
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method to form semiconductor laser diode
- Patent number 8,021,985
- Issue date Sep 20, 2011
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for forming a semiconductor light-emitting device
- Patent number 7,998,770
- Issue date Aug 16, 2011
- Sumitomo Electric Industries, Ltd.
- Atsushi Matsumura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method of producing semiconductor optical device
- Patent number 7,816,157
- Issue date Oct 19, 2010
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method of fabricating a semiconductor optical device
- Patent number 7,723,138
- Issue date May 25, 2010
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Integrated optical device and fabrication method thereof
- Patent number 7,678,594
- Issue date Mar 16, 2010
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light-emitting device on n-type InP substrate heavily doped with su...
- Patent number 7,627,009
- Issue date Dec 1, 2009
- Sumitomo Electric Industries Ltd.
- Tomokazu Katsuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
AC coupling circuit having a large capacitance and a good frequency...
- Patent number 7,196,909
- Issue date Mar 27, 2007
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical module
- Patent number 6,791,159
- Issue date Sep 14, 2004
- Sumitomo Electric Industries, Ltd.
- Akihiro Moto
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR OPTICAL DEVICE AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20210041726
- Publication date Feb 11, 2021
- Sumitomo Electric Industries, Ltd.
- Tomokazu KATSUYAMA
- G02 - OPTICS
Information Patent Application
METHOD FOR PRODUCING INTEGRATED OPTICAL DEVICE
- Publication number 20130183783
- Publication date Jul 18, 2013
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD FOR PRODUCING INTEGRATED OPTICAL DEVICE
- Publication number 20130183784
- Publication date Jul 18, 2013
- Sumitomo Electric Industries, Ltd.
- Tomokazu KATSUYAMA
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD FOR PRODUCING INTEGRATED OPTICAL DEVICE
- Publication number 20130183778
- Publication date Jul 18, 2013
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Application
INTEGRATED SEMICONDUCTOR DEVICE
- Publication number 20130129278
- Publication date May 23, 2013
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- G02 - OPTICS
Information Patent Application
INTEGRATED SEMICONDUCTOR DEVICE
- Publication number 20130129277
- Publication date May 23, 2013
- Sumitomo Electric Industries, Ltd.
- Tomokazu KATSUYAMA
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD TO FORM SEMICONDUCTOR LASER DIODE
- Publication number 20110159620
- Publication date Jun 30, 2011
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD TO FORM SEMICONDUCTOR LASER DIODE WITH MESA STRUCTURE BURIED...
- Publication number 20100190283
- Publication date Jul 29, 2010
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD OF PRODUCING SEMICONDUCTOR OPTICAL DEVICE
- Publication number 20090203159
- Publication date Aug 13, 2009
- Sumitomo Electric Industries, Ltd.
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Application
Semiconductor optical device
- Publication number 20090117676
- Publication date May 7, 2009
- Tomokazu Katsuyama
- G02 - OPTICS
Information Patent Application
Method for forming a semiconductor light-emitting device and a semi...
- Publication number 20090001408
- Publication date Jan 1, 2009
- Atsushi Matsumura
- B82 - NANO-TECHNOLOGY
Information Patent Application
Light-emitting device on n-type InP substrate heavily doped with su...
- Publication number 20080095206
- Publication date Apr 24, 2008
- Tomokazu Katsuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Integrated optical device and fabrication method thereof
- Publication number 20080003704
- Publication date Jan 3, 2008
- Tomokazu Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Application
AC coupling circuit having a large capacitance and a good frequency...
- Publication number 20040223306
- Publication date Nov 11, 2004
- Tomokazu Katsuyama
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Optical module
- Publication number 20040047540
- Publication date Mar 11, 2004
- Akihiro Moto
- H01 - BASIC ELECTRIC ELEMENTS

Tomokazu Katsuyama

Person

Patents Grantslast 30 patents

Semiconductor optical device and method for manufacturing the same

Integrated semiconductor device

Integrated semiconductor device

Method for producing integrated optical device

Method for producing integrated optical device

Method for producing integrated optical device

Method to form semiconductor laser diode with mesa structure buried...

Method to form semiconductor laser diode

Method for forming a semiconductor light-emitting device

Method of producing semiconductor optical device

Method of fabricating a semiconductor optical device

Integrated optical device and fabrication method thereof

Light-emitting device on n-type InP substrate heavily doped with su...

AC coupling circuit having a large capacitance and a good frequency...

Optical module

Patents Applicationslast 30 patents

SEMICONDUCTOR OPTICAL DEVICE AND METHOD FOR MANUFACTURING THE SAME

METHOD FOR PRODUCING INTEGRATED OPTICAL DEVICE

METHOD FOR PRODUCING INTEGRATED OPTICAL DEVICE

METHOD FOR PRODUCING INTEGRATED OPTICAL DEVICE

INTEGRATED SEMICONDUCTOR DEVICE

INTEGRATED SEMICONDUCTOR DEVICE

METHOD TO FORM SEMICONDUCTOR LASER DIODE

METHOD TO FORM SEMICONDUCTOR LASER DIODE WITH MESA STRUCTURE BURIED...

METHOD OF PRODUCING SEMICONDUCTOR OPTICAL DEVICE

Semiconductor optical device

Method for forming a semiconductor light-emitting device and a semi...

Light-emitting device on n-type InP substrate heavily doped with su...

Integrated optical device and fabrication method thereof

AC coupling circuit having a large capacitance and a good frequency...

Optical module