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Kazuyoshi UMEZAWA
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Hyogo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Uninterruptible power supply system and uninterruptible power supply
Patent number
11,539,237
Issue date
Dec 27, 2022
Fuji Electric Co., Ltd.
Tatsuki Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Uninterruptible power supply system and uninterruptible power supply
Patent number
10,790,698
Issue date
Sep 29, 2020
Fuji Electric Co., Ltd.
Kazuyoshi Umezawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Distributed power supply system with harmonic signal generation for...
Patent number
8,743,571
Issue date
Jun 3, 2014
Fuji Electric Co., Ltd.
Toshiya Yamada
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
PWM inverter control system and method
Patent number
5,381,328
Issue date
Jan 10, 1995
Fuji Electric Co., Ltd.
Kazuyoshi Umezawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
UNINTERRUPTIBLE POWER SUPPLY SYSTEM AND UNINTERRUPTIBLE POWER SUPPLY
Publication number
20210391745
Publication date
Dec 16, 2021
Fuji Electric Co., Ltd.
Tatsuki OHNO
G01 - MEASURING TESTING
Information
Patent Application
UNINTERRUPTIBLE POWER SUPPLY SYSTEM AND UNINTERRUPTIBLE POWER SUPPLY
Publication number
20190157903
Publication date
May 23, 2019
Fuji Electric Co., Ltd.
Kazuyoshi UMEZAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DISTRIBUTED POWER SUPPLY SYSTEM
Publication number
20120262957
Publication date
Oct 18, 2012
Fuji Electric Co., Ltd.
Toshiya YAMADA
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...