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Yasushi Sakuma
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor optical amplifier integrated laser
Patent number
12,218,480
Issue date
Feb 4, 2025
Lumentum Japan, Inc.
Atsushi Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device and optical transceiver module
Patent number
12,136,797
Issue date
Nov 5, 2024
Lumentum Operations LLC
Takafumi Taniguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device and method for manufacturing the same
Patent number
12,100,929
Issue date
Sep 24, 2024
Lumentum Japan, Inc.
Ryosuke Nakajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device and method for manufacturing the same
Patent number
11,817,674
Issue date
Nov 14, 2023
Lumentum Japan, Inc.
Ryosuke Nakajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device
Patent number
11,710,940
Issue date
Jul 25, 2023
Lumentum Japan, Inc.
Shigetaka Hamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical amplifier integrated laser
Patent number
11,552,448
Issue date
Jan 10, 2023
Lumentum Japan, Inc.
Atsushi Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device
Patent number
11,283,242
Issue date
Mar 22, 2022
Lumentum Japan, Inc.
Shigetaka Hamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device and optical transceiver module
Patent number
11,133,646
Issue date
Sep 28, 2021
Lumentum Japan, Inc.
Takafumi Taniguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light receiving device, optical receiver module and m...
Patent number
10,230,008
Issue date
Mar 12, 2019
Oclaro Japan, Inc.
Masahiro Ebisu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated optical device, manufacturing method there...
Patent number
9,780,530
Issue date
Oct 3, 2017
Oclaro Japan, Inc.
Koichiro Adachi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light receiving device and method of manufacturing th...
Patent number
9,029,970
Issue date
May 12, 2015
Oclaro Japan, Inc.
Ryu Washino
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device, optical transmitter module, optical t...
Patent number
8,488,918
Issue date
Jul 16, 2013
Oclaro Japan, Inc.
Seiji Sumi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor element and manufacturing method thereof
Patent number
7,998,766
Issue date
Aug 16, 2011
OpNext Japan, Inc.
Yasushi Sakuma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser device and method of manufacturing the same
Patent number
7,855,093
Issue date
Dec 21, 2010
OpNext Japan, Inc.
Kaoru Okamoto
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Surface illuminated photodiode and optical receiver module
Patent number
7,687,874
Issue date
Mar 30, 2010
Opnext Japan, Inc
Kazuhiro Komatsu
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Polishing method for semiconductor substrate, and polishing jig use...
Patent number
7,459,397
Issue date
Dec 2, 2008
Opnext Japan, Inc.
Ryu Washino
B24 - GRINDING POLISHING
Information
Patent Grant
Semiconductor optical device and manufacturing method thereof
Patent number
7,279,349
Issue date
Oct 9, 2007
OpNext Japan, Inc.
Yasushi Sakuma
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE AND METHOD FOR MANUFACTURING THE SAME
Publication number
20240072513
Publication date
Feb 29, 2024
Lumentum Japan, Inc.
Ryosuke NAKAJIMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL AMPLIFIER INTEGRATED LASER
Publication number
20230155348
Publication date
May 18, 2023
Lumentum Japan, Inc.
Atsushi NAKAMURA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE
Publication number
20220200243
Publication date
Jun 23, 2022
Lumentum Japan, Inc.
Shigetaka HAMADA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE AND OPTICAL TRANSCEIVER MODULE
Publication number
20220006257
Publication date
Jan 6, 2022
Lumentum Japan, Inc.
Takafumi TANIGUCHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE AND METHOD FOR MANUFACTURING THE SAME
Publication number
20210408760
Publication date
Dec 30, 2021
Lumentum Japan, Inc.
Ryosuke NAKAJIMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL AMPLIFIER INTEGRATED LASER
Publication number
20210234333
Publication date
Jul 29, 2021
Lumentum Japan, Inc.
Atsushi NAKAMURA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE
Publication number
20210050713
Publication date
Feb 18, 2021
Lumentum Japan, Inc.
Shigetaka HAMADA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE AND OPTICAL TRANSCEIVER MODULE
Publication number
20200044417
Publication date
Feb 6, 2020
Lumentum Japan, Inc.
Takafumi TANIGUCHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT RECEIVING DEVICE, OPTICAL RECEIVER MODULE AND M...
Publication number
20160240698
Publication date
Aug 18, 2016
OCLARO JAPAN, INC.
Masahiro EBISU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR INTEGRATED OPTICAL DEVICE, MANUFACTURING METHOD THERE...
Publication number
20160164257
Publication date
Jun 9, 2016
OCLARO JAPAN, INC.
Koichiro ADACHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE, OPTICAL TRANSMITTER MODULE, OPTICAL T...
Publication number
20120008895
Publication date
Jan 12, 2012
OpNext Japan, Inc.
Seiji SUMI
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR LIGHT RECEIVING DEVICE AND METHOD OF MANUFACTURING TH...
Publication number
20110233708
Publication date
Sep 29, 2011
Opnext Japan, Inc.
Ryu WASHINO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING THE SAME
Publication number
20100022043
Publication date
Jan 28, 2010
OpNext Japan, Inc.
Kaoru OKAMOTO
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor Element and Manufacturing Method Thereof
Publication number
20090065901
Publication date
Mar 12, 2009
Opnext Japan, Inc.
Yasushi Sakuma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE AND MANUFACTURING METHOD THEREFOR
Publication number
20080036044
Publication date
Feb 14, 2008
Yasushi Sakuma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor laser device and method of manufacturing the same
Publication number
20080013582
Publication date
Jan 17, 2008
Kaoru Okamoto
B82 - NANO-TECHNOLOGY
Information
Patent Application
Surface illuminated photodiode and optical receiver module
Publication number
20080006895
Publication date
Jan 10, 2008
Kazuhiro Komatsu
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Semiconductor element, production process thereof, semiconductor la...
Publication number
20070126119
Publication date
Jun 7, 2007
Ryu Washino
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical semiconductor element, method of manufacturing optical semi...
Publication number
20060222032
Publication date
Oct 5, 2006
Yasushi Sakuma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor optical device and manufacturing method thereof
Publication number
20050286828
Publication date
Dec 29, 2005
Yasushi Sakuma
G02 - OPTICS
Information
Patent Application
Polishing method for semiconductor substrate, and polishing jig use...
Publication number
20050250334
Publication date
Nov 10, 2005
Ryu Washino
B24 - GRINDING POLISHING