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Kazuki TANI
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Power conversion device, motor control system, and diagnosis method...
Patent number
11,152,887
Issue date
Oct 19, 2021
Hitachi, Ltd.
Yoshinobu Kimura
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power converter and diagnostic system thereof
Patent number
10,451,687
Issue date
Oct 22, 2019
Hitachi, Ltd.
Kazuki Tani
G01 - MEASURING TESTING
Information
Patent Grant
Silicon carbide semiconductor device, power module, and power conve...
Patent number
10,367,090
Issue date
Jul 30, 2019
Hitachi, Ltd.
Kumiko Konishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical modulator and method for manufacturing same
Patent number
9,857,610
Issue date
Jan 2, 2018
Hitachi, Ltd.
Hideo Arimoto
G02 - OPTICS
Information
Patent Grant
Semiconductor optical element
Patent number
9,269,869
Issue date
Feb 23, 2016
Hitachi, Ltd.
Tadashi Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting device, manufacturing method thereof, and optical tr...
Patent number
9,052,449
Issue date
Jun 9, 2015
Hitachi, Ltd.
Misuzu Sagawa
G02 - OPTICS
Information
Patent Grant
Semiconductor optical element
Patent number
9,041,080
Issue date
May 26, 2015
Hitachi, Ltd.
Kazuki Tani
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
POWER CONVERSION DEVICE, MOTOR CONTROL SYSTEM, AND DIAGNOSIS METHOD...
Publication number
20210021227
Publication date
Jan 21, 2021
Hitachi, Ltd
Yoshinobu KIMURA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER CONVERTER AND DIAGNOSTIC SYSTEM THEREOF
Publication number
20190310322
Publication date
Oct 10, 2019
Hitachi, Ltd
Kazuki TANI
G01 - MEASURING TESTING
Information
Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE, POWER MODULE, AND POWER CONVE...
Publication number
20190115465
Publication date
Apr 18, 2019
Hitachi, Ltd
Kumiko KONISHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL MODULATOR AND METHOD FOR MANUFACTURING SAME
Publication number
20170082877
Publication date
Mar 23, 2017
Hitachi, Ltd
Hideo ARIMOTO
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR OPTICAL ELEMENT
Publication number
20150055669
Publication date
Feb 26, 2015
Kazuki Tani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT RECEIVING ELEMENT AND LIGHT RECEIVER
Publication number
20150001581
Publication date
Jan 1, 2015
Hitachi, Ltd
Katsuya Oda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR OPTICAL ELEMENT
Publication number
20140355636
Publication date
Dec 4, 2014
Tadashi Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT EMITTING DEVICE, MANUFACTURING METHOD THEREOF, AND OPTICAL TR...
Publication number
20140241734
Publication date
Aug 28, 2014
Hitachi, Ltd
Misuzu Sagawa
G02 - OPTICS
Information
Patent Application
GERMANIUM LIGHT-EMITTING ELEMENT
Publication number
20120287959
Publication date
Nov 15, 2012
Kazuki Tani
H01 - BASIC ELECTRIC ELEMENTS