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Kazuhiro Yamaji
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical semiconductor device and manufacturing method thereof
Patent number
11,264,781
Issue date
Mar 1, 2022
Sumitomo Electric Device Innovations, Inc.
Kazuhiro Yamaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical module having wiring and bridge substrates for modulation s...
Patent number
10,802,303
Issue date
Oct 13, 2020
Sumitomo Electric Device Innovations, Inc.
Kazuhiro Yamaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical module implementing with optical source, optical modulator,...
Patent number
10,326,253
Issue date
Jun 18, 2019
Sumitomo Electric Industries, Ltd
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Grant
Optical module implementing with optical source, optical modulator,...
Patent number
10,256,601
Issue date
Apr 9, 2019
Sumitomo Electric Industries, Ltd
Kazuhiro Yamaji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical module implementing with optical source, optical modulator,...
Patent number
10,218,149
Issue date
Feb 26, 2019
Sumitomo Electric Industries, Ltd
Kazuhiro Yamaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical module implementing with optical source, optical modulator,...
Patent number
10,203,458
Issue date
Feb 12, 2019
Sumitomo Electric Industries, Ltd
Kazuhiro Yamaji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of coupling optical signal optically with optical waveguide...
Patent number
10,056,982
Issue date
Aug 21, 2018
Sumitomo Electric Industries, Ltd
Kazuhiro Yamaji
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Lens system to enhance optical coupling efficiency of collimated be...
Patent number
9,887,783
Issue date
Feb 6, 2018
Sumitomo Electric Industries, Ltd
Kazuhiro Yamaji
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of assembling the optical module implementing Mach-Zehnder m...
Patent number
9,804,347
Issue date
Oct 31, 2017
Sumitomo Electric Industries, Ltd
Tomoya Saeki
G02 - OPTICS
Information
Patent Grant
Optical module including semiconductor optical modulator
Patent number
9,473,245
Issue date
Oct 18, 2016
Sumitomo Electric Industries, Ltd
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Grant
Optical module outputting polarization combined optical beam
Patent number
9,348,157
Issue date
May 24, 2016
Sumitomo Electric Industries, Ltd
Munetaka Kurokawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Full-duplex optical transceiver applicable to digital coherent system
Patent number
9,319,142
Issue date
Apr 19, 2016
Sumitomo Electric Industries, Ltd
Takatoshi Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulator
Patent number
9,274,399
Issue date
Mar 1, 2016
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulator module and semiconductor optical modulator
Patent number
9,046,703
Issue date
Jun 2, 2015
Sumitomo Electric Industries, Ltd.
Chie Fukuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulator
Patent number
8,781,263
Issue date
Jul 15, 2014
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF
Publication number
20200127439
Publication date
Apr 23, 2020
SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
Kazuhiro YAMAJI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL MODULE
Publication number
20190107739
Publication date
Apr 11, 2019
SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
Kazuhiro Yamaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL MODULE IMPLEMENTING WITH OPTICAL SOURCE, OPTICAL MODULATOR,...
Publication number
20180233879
Publication date
Aug 16, 2018
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Application
METHOD OF COUPLING OPTICAL SIGNAL OPTICALLY WITH OPTICAL WAVEGUIDE...
Publication number
20180138986
Publication date
May 17, 2018
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Application
OPTICAL MODULE IMPLEMENTING WITH OPTICAL SOURCE, OPTICAL MODULATOR,...
Publication number
20170336581
Publication date
Nov 23, 2017
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Application
OPTICAL MODULE IMPLEMENTING WITH OPTICAL SOURCE, OPTICAL MODULATOR,...
Publication number
20170229839
Publication date
Aug 10, 2017
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL MODULE IMPLEMENTING WITH OPTICAL SOURCE, OPTICAL MODULATOR,...
Publication number
20170227724
Publication date
Aug 10, 2017
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Application
METHOD OF ASSEMBLING THE OPTICAL MODULE IMPLEMENTING MACH-ZEHNDER M...
Publication number
20170184802
Publication date
Jun 29, 2017
Sumitomo Electric Industries, Ltd.
Tomoya Saeki
G02 - OPTICS
Information
Patent Application
LENS SYSTEM TO ENHANCE OPTICAL COUPLING EFFICIENCY OF COLLIMATED BE...
Publication number
20160119064
Publication date
Apr 28, 2016
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Application
FULL-DUPLEX OPTICAL TRANSCEIVER APPLICABLE TO DIGITAL COHERENT SYSTEM
Publication number
20150104177
Publication date
Apr 16, 2015
Sumitomo Electric Industries, Ltd.
Takatoshi Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MODULE OUTPUTTING POLARIZATION COMBINED OPTICAL BEAM
Publication number
20150098127
Publication date
Apr 9, 2015
Sumitomo Electric Industries, Ltd.
Munetaka KUROKAWA
G02 - OPTICS
Information
Patent Application
OPTICAL MODULE INCLUDING SEMICONDUCTOR OPTICAL MODULATOR
Publication number
20150078761
Publication date
Mar 19, 2015
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MODULATOR
Publication number
20140254974
Publication date
Sep 11, 2014
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
G02 - OPTICS
Information
Patent Application
OPTICAL MODULATOR MODULE AND SEMICONDUCTOR OPTICAL MODULATOR
Publication number
20140241659
Publication date
Aug 28, 2014
Sumitomo Electric Industries, Ltd.
Chie FUKUDA
G02 - OPTICS
Information
Patent Application
OPTICAL MODULATOR
Publication number
20120134620
Publication date
May 31, 2012
Sumitomo Electric Industries, Ltd.
Kazuhiro Yamaji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FLEXIBLE PRINTED CIRCUIT BOARD
Publication number
20110278047
Publication date
Nov 17, 2011
SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
Yasuyuki Yamauchi
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...