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Masashiro TANAKA
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Fukuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Bidirectional power conversion
Patent number
11,621,643
Issue date
Apr 4, 2023
Hirotaka Karakama
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Bidirectional power converter
Patent number
11,411,507
Issue date
Aug 9, 2022
Hirotaka Karakama
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Elevator control device with carrier frequency switch circuit
Patent number
8,348,020
Issue date
Jan 8, 2013
Kabushiki Kaisha Yaskawa Denki
Hiroaki Ohya
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Voltage source inverter control method
Patent number
7,362,069
Issue date
Apr 22, 2008
Kabushiki Kaisha Yaskawa Denki
Yoichi Yamamoto
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
POWER CONVERSION DEVICE, POWER CONVERSION METHOD, AND PROGRAM
Publication number
20230032286
Publication date
Feb 2, 2023
Kabushiki Kaisha Yaskawa Denki
Toshihiro HANADA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
BIDIRECTIONAL POWER CONVERSION
Publication number
20220069721
Publication date
Mar 3, 2022
KABUSHIKI KAISHA YASKAWA DENKI
Hirotaka KARAKAMA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
BIDIRECTIONAL POWER CONVERTER
Publication number
20210336549
Publication date
Oct 28, 2021
KABUSHIKI KAISHA YASKAWA DENKI
Hirotaka KARAKAMA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ELEVATOR CONTROL DEVICE
Publication number
20110056771
Publication date
Mar 10, 2011
KABUSHIKI KAISHA YASKAWA DENKI
Hiroaki OHYA
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Voltage source inverter control method
Publication number
20070030705
Publication date
Feb 8, 2007
Kabushiki Kaisha Yaskawa Denki
Yoichi Yamamoto
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER