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Kenichi Kawaguchi
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Ebina, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Oscillation circuit and information processing device
Patent number
11,777,447
Issue date
Oct 3, 2023
Fujitsu Limited
Kenichi Kawaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Semiconductor device and radio receiver using the same
Patent number
11,276,783
Issue date
Mar 15, 2022
Fujitsu Limited
Tsuyoshi Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method for manufacturing semiconductor device
Patent number
11,171,242
Issue date
Nov 9, 2021
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
10,784,368
Issue date
Sep 22, 2020
Fujitsu Limited
Tsuyoshi Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor photodetector element and method
Patent number
9,553,224
Issue date
Jan 24, 2017
Fujitsu Limited
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Solar cell and manufacturing method thereof
Patent number
9,401,444
Issue date
Jul 26, 2016
Fujitsu Limited
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor laser
Patent number
9,036,673
Issue date
May 19, 2015
Fujitsu Limited
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor optical device
Patent number
8,809,906
Issue date
Aug 19, 2014
Fujitsu Limited
Lei Zhu
G02 - OPTICS
Information
Patent Grant
Optical semiconductor device and manufacturing method of the same
Patent number
7,968,868
Issue date
Jun 28, 2011
Fujitsu Limited
Nami Yasuoka
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor device and manufacturing method thereof
Patent number
7,875,875
Issue date
Jan 25, 2011
Fujitsu Limited
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Quantum dot semiconductor device
Patent number
7,829,880
Issue date
Nov 9, 2010
Fujitsu Limited
Hiroji Ebe
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Light emitting device and semiconductor device
Patent number
7,732,823
Issue date
Jun 8, 2010
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device with anisotropy-relaxed quantum dots
Patent number
7,683,392
Issue date
Mar 23, 2010
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical semiconductor device and manufacturing method of the same
Patent number
7,663,139
Issue date
Feb 16, 2010
Fujitsu Limited
Nami Yasuoka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser device and manufacturing method of the same
Patent number
7,616,675
Issue date
Nov 10, 2009
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
7,456,422
Issue date
Nov 25, 2008
Fujitsu Limited
Ayahito Uetake
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL WAVEGUIDE, QUANTUM COMPUTING DEVICE, AND METHOD FOR MANUFAC...
Publication number
20240094459
Publication date
Mar 21, 2024
Fujitsu Limited
Tetsuro ISHIGURO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
QUANTUM BIT CIRCUIT, QUANTUM COMPUTER, METHOD FOR MANUFACTURING QUA...
Publication number
20230329126
Publication date
Oct 12, 2023
Fujitsu Limited
Manabu OHTOMO
Information
Patent Application
SEMICONDUCTOR DEVICE, AMPLIFYING DEVICE, AND METHOD OF MANUFACTURIN...
Publication number
20230326832
Publication date
Oct 12, 2023
Fujitsu Limited
Tsuyoshi Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
QUANTUM CIRCUIT, QUANTUM COMPUTER, AND METHOD OF MANUFACTURING QUAN...
Publication number
20230222375
Publication date
Jul 13, 2023
FUJITSU LIMITED
Tetsuro ISHIGURO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD
Publication number
20230117769
Publication date
Apr 20, 2023
Fujitsu Limited
Kenichi KAWAGUCHI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
OSCILLATION CIRCUIT AND INFORMATION PROCESSING DEVICE
Publication number
20230021543
Publication date
Jan 26, 2023
FUJITSU LIMITED
Kenichi Kawaguchi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SEMICONDUCTOR DEVICE, RESERVOIR COMPUTING SYSTEM, AND METHOD FOR MA...
Publication number
20230015231
Publication date
Jan 19, 2023
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND RADIO RECEIVER USING THE SAME
Publication number
20200411700
Publication date
Dec 31, 2020
Fujitsu Limited
Tsuyoshi Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
Publication number
20200365741
Publication date
Nov 19, 2020
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
Publication number
20190267484
Publication date
Aug 29, 2019
Fujitsu Limited
Tsuyoshi Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL DEVICE AND METHOD FOR MANUFACTURING OPTICAL DEVICE
Publication number
20190181616
Publication date
Jun 13, 2019
Fujitsu Limited
Teruo Kurahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SOLAR CELL AND MANUFACTURING METHOD THEREOF
Publication number
20160308080
Publication date
Oct 20, 2016
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SOLAR CELL AND MANUFACTURING METHOD THEREOF
Publication number
20150187973
Publication date
Jul 2, 2015
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR PHOTODETECTOR ELEMENT AND METHOD
Publication number
20150187972
Publication date
Jul 2, 2015
Fujitsu Limited
Kenichi Kawaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LASER
Publication number
20140301420
Publication date
Oct 9, 2014
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Application
SEMICONDUCTOR OPTICAL DEVICE
Publication number
20130126941
Publication date
May 23, 2013
Fujitsu Limited
Lei Zhu
G02 - OPTICS
Information
Patent Application
Optical semiconductor device and manufacturing method of the same
Publication number
20100090196
Publication date
Apr 15, 2010
FUJITSU LIMITED
Nami Yasuoka
B82 - NANO-TECHNOLOGY
Information
Patent Application
QUANTUM DOT SEMICONDUCTOR DEVICE
Publication number
20080308788
Publication date
Dec 18, 2008
Fujitsu Limited
Hiroji EBE
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor laser device and manufacturing method of the same
Publication number
20080080573
Publication date
Apr 3, 2008
FUJITSU LIMITED
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Application
Light emitting device and semiconductor device
Publication number
20080006817
Publication date
Jan 10, 2008
FUJITSU LIMITED
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor device and manufacturing method thereof
Publication number
20070210300
Publication date
Sep 13, 2007
FUJITSU LIMITED
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Application
Optical semiconductor device and manufacturing method of the same
Publication number
20070194299
Publication date
Aug 23, 2007
FUJITSU LIMITED
Nami Yasuoka
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor device with anisotropy-relaxed quantum dots
Publication number
20070145351
Publication date
Jun 28, 2007
FUJITSU LIMITED
Kenichi Kawaguchi
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor device
Publication number
20060220001
Publication date
Oct 5, 2006
FUJITSU LIMITED
Ayahito Uetake
B82 - NANO-TECHNOLOGY