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Takeshi Yamatoya
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor laser device
Patent number
11,552,451
Issue date
Jan 10, 2023
Mitsubishi Electric Corporation
Takeshi Yamatoya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical transmission device
Patent number
11,385,403
Issue date
Jul 12, 2022
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Grant
Semiconductor optical element, optical module and method of manufac...
Patent number
9,246,622
Issue date
Jan 26, 2016
Mitsubishi Electric Corporation
Asami Uchiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electro-absorption modulator and optical semiconductor device
Patent number
8,654,430
Issue date
Feb 18, 2014
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Grant
Semiconductor optical element
Patent number
8,457,451
Issue date
Jun 4, 2013
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Grant
Integrated semiconductor optical device
Patent number
7,876,799
Issue date
Jan 25, 2011
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Grant
Optical waveguide and semiconductor optical element
Patent number
7,733,934
Issue date
Jun 8, 2010
Mitsubishi Electric Corporation
Takeshi Yamatoya
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR LASER DEVICE AND METHOD FOR MANUFACTURING THE SAME
Publication number
20230253759
Publication date
Aug 10, 2023
Mitsubishi Electric Corporation
Asami UCHIYAMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LASER DEVICE
Publication number
20220231478
Publication date
Jul 21, 2022
Mitsubishi Electric Corporation
Takeshi YAMATOYA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL TRANSMISSION DEVICE
Publication number
20210103093
Publication date
Apr 8, 2021
Mitsubishi Electric Corporation
Takeshi Yamatoya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LASER DEVICE
Publication number
20200403380
Publication date
Dec 24, 2020
Mitsubishi Electric Corporation
Takeshi YAMATOYA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MODULATOR INTEGRATED LASER DEVICE
Publication number
20150171592
Publication date
Jun 18, 2015
Mitsubishi Electric Corporation
Takeshi Yamatoya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL ELEMENT, OPTICAL MODULE AND METHOD OF MANUFAC...
Publication number
20150093115
Publication date
Apr 2, 2015
Mitsubishi Electric Corporation
Asami Uchiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MODULATOR INTEGRATED LASER DEVICE
Publication number
20130272326
Publication date
Oct 17, 2013
Mitsubishi Electric Corporation
Takeshi Yamatoya
B82 - NANO-TECHNOLOGY
Information
Patent Application
ELECTRO-ABSORPTION MODULATOR AND OPTICAL SEMICONDUCTOR DEVICE
Publication number
20120134383
Publication date
May 31, 2012
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Application
OPTICAL MODULATOR AND MANUFACTURING METHOD THEREFOR
Publication number
20110235960
Publication date
Sep 29, 2011
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR OPTICAL ELEMENT AND METHOD FOR MANUFACTURING THE SAME
Publication number
20100272389
Publication date
Oct 28, 2010
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Application
INTEGRATED SEMICONDUCTOR OPTICAL DEVICE
Publication number
20090166807
Publication date
Jul 2, 2009
Mitsubishi Electric Corporation
Takeshi Yamatoya
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE, SEMICONDUCTOR OPTICAL INTEGRATED ELEMENT, AND ME...
Publication number
20080037605
Publication date
Feb 14, 2008
Mitsubishi Electric Corporation
Takeshi Yamatoya
B82 - NANO-TECHNOLOGY
Information
Patent Application
SEMICONDUCTOR LASER DEVICE WITH SMALL VARIATION OF THE OSCILLATION...
Publication number
20070171950
Publication date
Jul 26, 2007
Mitsubishi Electric Corporation
Kazuhisa TAKAGI
H01 - BASIC ELECTRIC ELEMENTS