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Patents Grants
last 30 patents
Information
Patent Grant
Wireless power transfer using inductive coupling
Patent number
12,040,633
Issue date
Jul 16, 2024
MAXELL, LTD.
Katsuei Ichikawa
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Power transfer coil
Patent number
11,581,758
Issue date
Feb 14, 2023
MAXELL, LTD.
Katsuei Ichikawa
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Power reception unit, power transmission unit, and wireless power t...
Patent number
11,404,912
Issue date
Aug 2, 2022
Hitachi, Ltd.
Katsuei Ichikawa
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Electric power transmitting device, non-contact power supply system...
Patent number
11,303,325
Issue date
Apr 12, 2022
Renesas Electronics Corporation
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power transmission device
Patent number
11,095,167
Issue date
Aug 17, 2021
MAXELL, LTD.
Katsuei Ichikawa
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Wireless power transmission/reception system, power conversion devi...
Patent number
11,018,528
Issue date
May 25, 2021
Hitachi, Ltd.
Yoshikazu Sugiyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Wireless power transfer device
Patent number
10,971,952
Issue date
Apr 6, 2021
MAXELL, LTD.
Osamu Kawamae
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Contactless power receiving device, contactless power transfer devi...
Patent number
10,971,953
Issue date
Apr 6, 2021
MAXELL, LTD.
Osamu Kawamae
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Non-contact charging device, and non-contact power supply system us...
Patent number
10,404,107
Issue date
Sep 3, 2019
Renesas Electronics Corporation
Katsuei Ichikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electric power transmitting device, non-contact power supply system...
Patent number
10,177,817
Issue date
Jan 8, 2019
Renesas Electronics Corporation
Katsuei Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power transmission device, wireless power feeding system, and contr...
Patent number
10,075,025
Issue date
Sep 11, 2018
RENESAS ELECTRONICS CORPORATION
Katsuei Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Non-contact power transmission system, receiving apparatus and tran...
Patent number
10,050,474
Issue date
Aug 14, 2018
MAXELL, LTD.
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Non-contact charging device with wireless communication antenna coi...
Patent number
9,991,731
Issue date
Jun 5, 2018
Renesas Electronics Corporation
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Rotating body non-contact power-feeding device and torque sensor
Patent number
9,958,345
Issue date
May 1, 2018
Hitachi Automotive Systems, Ltd.
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Non-contact power feeding device used in torque sensor having a coi...
Patent number
9,960,641
Issue date
May 1, 2018
Hitachi Automotive Systems, Ltd.
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Non-contact power transmission system, receiving apparatus and tran...
Patent number
9,154,003
Issue date
Oct 6, 2015
Hitachi Maxell, Ltd.
Katsuei Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless power transfer system and a load apparatus in the same wir...
Patent number
8,531,059
Issue date
Sep 10, 2013
Hitachi Consumer Electronics Co., Ltd.
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
Wireless Power Transfer Using Inductive Coupling
Publication number
20230187978
Publication date
Jun 15, 2023
Maxell, Ltd.
Katsuei ICHIKAWA
B60 - VEHICLES IN GENERAL
Information
Patent Application
WIRELESS POWER RECEIVING DEVICE, WIRELESS POWER TRANSMITTING DEVICE...
Publication number
20220320910
Publication date
Oct 6, 2022
Maxell, Ltd.
Katsuei ICHIKAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER TRANSMISSION DEVICE
Publication number
20210006098
Publication date
Jan 7, 2021
Maxell, Ltd.
Katsuei ICHIKAWA
B60 - VEHICLES IN GENERAL
Information
Patent Application
Power Reception Unit, Power Transmission Unit, and Wireless Power T...
Publication number
20200259370
Publication date
Aug 13, 2020
Hitachi, Ltd
Katsuei ICHIKAWA
B60 - VEHICLES IN GENERAL
Information
Patent Application
CONTACTLESS POWER RECEIVING DEVICE, CONTACTLESS POWER TRANSFER DEVI...
Publication number
20190190319
Publication date
Jun 20, 2019
Maxell, Ltd.
Osamu KAWAMAE
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER TRANSFER COIL
Publication number
20190173325
Publication date
Jun 6, 2019
Maxell, Ltd.
Katsuei ICHIKAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
WIRELESS POWER TRANSMISSION/RECEPTION SYSTEM, POWER CONVERSION DEV...
Publication number
20190115789
Publication date
Apr 18, 2019
Hitachi, Ltd
Yoshikazu SUGIYAMA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ELECTRIC POWER TRANSMITTING DEVICE, NON-CONTACT POWER SUPPLY SYSTEM...
Publication number
20190097686
Publication date
Mar 28, 2019
RENESAS ELECTRONICS CORPORATION
Katsuei Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS POWER TRANSFER DEVICE
Publication number
20190027970
Publication date
Jan 24, 2019
Maxell, Ltd.
Osamu KAWAMAE
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER TRANSMISSION DEVICE, WIRELESS POWER FEEDING SYSTEM, AND CONTR...
Publication number
20180351370
Publication date
Dec 6, 2018
RENESAS ELECTRONICS CORPORATION
Katsuei Ichikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
NON-CONTACT CHARGING DEVICE, AND NON-CONTACT POWER SUPPLY SYSTEM US...
Publication number
20180248417
Publication date
Aug 30, 2018
Renesas Electronics Corporation
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Non-Contact Power-Feeding Device and Torque Sensor
Publication number
20160352148
Publication date
Dec 1, 2016
Hitachi Automotive Systems, Ltd.
Katsuei ICHIKAWA
G01 - MEASURING TESTING
Information
Patent Application
Rotating Body Non-Contact Power-Feeding Device and Torque Sensor
Publication number
20160327444
Publication date
Nov 10, 2016
Hitachi Automotive Systems, Ltd.
Katsuei ICHIKAWA
G01 - MEASURING TESTING
Information
Patent Application
POWER TRANSMISSION DEVICE, WIRELESS POWER FEEDING SYSTEM, AND CONTR...
Publication number
20160141882
Publication date
May 19, 2016
RENESAS ELECTRONICS CORPORATION
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
NON-CONTACT POWER TRANSMISSION SYSTEM, RECEIVING APPARATUS AND TRAN...
Publication number
20160028244
Publication date
Jan 28, 2016
Hitachi Maxell, Ltd.
Katsuei ICHIKAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
NON-CONTACT CHARGING DEVICE, AND NON-CONTACT POWER SUPPLY SYSTEM US...
Publication number
20150249360
Publication date
Sep 3, 2015
Renesas Electronics Corporation
Katsuei Ichikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ELECTRIC POWER TRANSMITTING DEVICE, NON-CONTACT POWER SUPPLY SYSTEM...
Publication number
20140375137
Publication date
Dec 25, 2014
Katsuei ICHIKAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER TRANSMITTING DEVICE, POWER RECEIVING DEVICE, POWER TRANSMITTI...
Publication number
20140028093
Publication date
Jan 30, 2014
NEC CASIO MOBILE COMMUNICATIONS, LTD.
Makoto Aikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Non-contact power transmission system, receiving apparatus and tran...
Publication number
20120235508
Publication date
Sep 20, 2012
Katsuei ICHIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRELESS POWER TRANSFER SYSTEM AND A LOAD APPARATUS IN THE SAME WIR...
Publication number
20100164295
Publication date
Jul 1, 2010
Katsuei ICHIKAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Transmitting device, video camera device, transmitting method for t...
Publication number
20040100562
Publication date
May 27, 2004
Hitachi, Ltd
Katsuei Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Photographing apparatus, photographing restrain system, and photogr...
Publication number
20040046871
Publication date
Mar 11, 2004
Katsuei Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio communication apparatus
Publication number
20040048589
Publication date
Mar 11, 2004
Hitachi, Ltd
Akio Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE