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Keiichi Sakuno
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Osaka-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Power transmission device and contactless power transmission device
Patent number
11,177,800
Issue date
Nov 16, 2021
SHARP KABUSHIKI KAISHA
Masato Sasaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching power supply circuit with reduced noise and potential sta...
Patent number
9,882,499
Issue date
Jan 30, 2018
Sharp Corporation
Keiichi Sakuno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Composite semiconductor device
Patent number
8,766,275
Issue date
Jul 1, 2014
Sharp Kabushiki Kaisha
Naoyasu Iketani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Power amplification circuit and communication device using the same
Patent number
7,173,487
Issue date
Feb 6, 2007
Sharp Kabushiki Kaisha
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power amplification circuit and communication device using the same
Patent number
6,873,207
Issue date
Mar 29, 2005
Sharp Kabushiki Kaisha
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power amplifier and communication device including power amplifier
Patent number
6,806,774
Issue date
Oct 19, 2004
Sharp Kabushiki Kaisha
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power amplifier and radio communication apparatus using the same
Patent number
6,771,130
Issue date
Aug 3, 2004
Sharp Kabushiki Kaisha
Takao Hasegawa
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Power amplifier and communication device including power amplifier
Patent number
6,433,641
Issue date
Aug 13, 2002
Sharp Kabushiki Kaisha
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Transistor power amplifier for portable terminals for mobile commun...
Patent number
6,121,841
Issue date
Sep 19, 2000
Sharp Kabushiki Kaisha
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
POWER TRANSMISSION DEVICE AND CONTACTLESS POWER TRANSMISSION DEVICE
Publication number
20210091765
Publication date
Mar 25, 2021
SHARP KABUSHIKI KAISHA
MASATO SASAKI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SWITCHING POWER SUPPLY CIRCUIT
Publication number
20170012548
Publication date
Jan 12, 2017
Sharp Kabushiki Kaisha
Keiichi SAKUNO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
COMPOSITE SEMICONDUCTOR DEVICE
Publication number
20120292635
Publication date
Nov 22, 2012
Naoyasu Iketani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Power amplification circuit and communication device using the same
Publication number
20040189379
Publication date
Sep 30, 2004
Sharp Kabushiki Kaisha
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Power amplifier and communication device including power amplifier
Publication number
20020167358
Publication date
Nov 14, 2002
Sharp Kabushiki Kaisha
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Power amplification circuit and communication device using the same
Publication number
20020093377
Publication date
Jul 18, 2002
Keiichi Sakuno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Power amplifier and radio communication apparatus using the same
Publication number
20020033735
Publication date
Mar 21, 2002
Takao Hasegawa
H03 - BASIC ELECTRONIC CIRCUITRY