Akinobu Sawada

Person

Kyoto, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Zero-crossing detection circuit
- Patent number 12,105,123
- Issue date Oct 1, 2024
- Rohm Co., Ltd.
- Satoru Nate
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Zero-crossing detection circuit
- Patent number 11,733,275
- Issue date Aug 22, 2023
- Rohm Co., Ltd.
- Satoru Nate
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Zero-crossing detection circuit
- Patent number 11,181,562
- Issue date Nov 23, 2021
- Rohm Co., Ltd.
- Satoru Nate
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching control circuit, switching power supply, and electric app...
- Patent number 11,011,969
- Issue date May 18, 2021
- Rohm Co., Ltd.
- Akinobu Sawada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Light-emitting-load driving device and illumination-light source de...
- Patent number 9,844,108
- Issue date Dec 12, 2017
- Rohm Co., Ltd.
- Akinobu Sawada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Lighting apparatus
- Patent number 9,581,655
- Issue date Feb 28, 2017
- Rohm Co., Ltd.
- Masahide Tanaka
- G01 - MEASURING TESTING
Information Patent Grant
Power system
- Patent number 9,553,480
- Issue date Jan 24, 2017
- Rohm Co., Ltd.
- Akinobu Sawada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
LED power supply device
- Patent number 9,420,659
- Issue date Aug 16, 2016
- Rohm Co., Ltd.
- Kotaro Shibata
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Switching current control circuit, LED dimmer system, and LED illum...
- Patent number 9,374,083
- Issue date Jun 21, 2016
- Rohm Co., Ltd.
- Akinobu Sawada
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
LED power supply device
- Patent number 9,271,365
- Issue date Feb 23, 2016
- Rohm Co., Ltd.
- Kotaro Shibata
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light emitter driving device and lighting appliance therewith
- Patent number 9,101,008
- Issue date Aug 4, 2015
- Rohm Co., Ltd.
- Takeshi Sumitani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Lighting system including power conversion using a control signal b...
- Patent number 9,101,011
- Issue date Aug 4, 2015
- Rohm Co., Ltd.
- Akinobu Sawada
- F21 - LIGHTING
Information Patent Grant
Light emitting device control circuit device and control method of...
- Patent number 9,066,384
- Issue date Jun 23, 2015
- Rohm Co., Ltd.
- Hidekazu Kikuchi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light emitter driving device and lighting appliance therewith
- Patent number 8,922,135
- Issue date Dec 30, 2014
- Rohm Co., Ltd.
- Takeshi Sumitani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Dimming control device, dimming control method and lighting apparat...
- Patent number 8,922,137
- Issue date Dec 30, 2014
- Rohm Co., Ltd.
- Akinobu Sawada
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Load driving device and LED lighting appliance therewith
- Patent number 8,890,441
- Issue date Nov 18, 2014
- Rohm Co., Ltd.
- Akinobu Sawada
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Lighting apparatus
- Patent number 8,710,995
- Issue date Apr 29, 2014
- Rohm Co., Ltd.
- Masahide Tanaka
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light emitting device control circuit device and control method of...
- Patent number 8,575,860
- Issue date Nov 5, 2013
- Rohm Co., Ltd.
- Hidekazu Kikuchi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Portable communication terminal
- Patent number 7,430,443
- Issue date Sep 30, 2008
- Rohm Co., Ltd.
- Akinobu Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Analog to digital converter using both analog and digital offset vo...
- Patent number 7,164,375
- Issue date Jan 16, 2007
- Rohm Co., Ltd.
- Akinobu Sawada
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
ZERO-CROSSING DETECTION CIRCUIT
- Publication number 20230358792
- Publication date Nov 9, 2023
- Rohm Co., Ltd.
- Satoru Nate
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BUCK CONVERTER
- Publication number 20220190725
- Publication date Jun 16, 2022
- Rohm Co., Ltd.
- Akinobu Sawada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ZERO-CROSSING DETECTION CIRCUIT
- Publication number 20220034946
- Publication date Feb 3, 2022
- Rohm Co., Ltd.
- Satoru Nate
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ZERO-CROSSING DETECTION CIRCUIT
- Publication number 20200158766
- Publication date May 21, 2020
- Rohm Co., Ltd.
- Satoru Nate
- G01 - MEASURING TESTING
Information Patent Application
SWITCHING CONTROL CIRCUIT, SWITCHING POWER SUPPLY, AND ELECTRIC APP...
- Publication number 20190319527
- Publication date Oct 17, 2019
- Rohm Co., Ltd.
- Akinobu Sawada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LIGHT-EMITTING-LOAD DRIVING DEVICE AND ILLUMINATION-LIGHT SOURCE DE...
- Publication number 20170215240
- Publication date Jul 27, 2017
- Rohm Co., Ltd.
- Akinobu Sawada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LED POWER SUPPLY DEVICE
- Publication number 20160150613
- Publication date May 26, 2016
- Rohm Co., Ltd.
- Kotaro Shibata
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LED POWER SUPPLY DEVICE
- Publication number 20150137687
- Publication date May 21, 2015
- Rohm Co., Ltd.
- Kotaro Shibata
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LIGHT EMITTER DRIVING DEVICE AND LIGHTING APPLIANCE THEREWITH
- Publication number 20150069929
- Publication date Mar 12, 2015
- ROHM CO., LTD.
- Takeshi Sumitani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Lighting Apparatus
- Publication number 20140197840
- Publication date Jul 17, 2014
- Rohm Co., Ltd.
- Masahide Tanaka
- G01 - MEASURING TESTING
Information Patent Application
LOAD DRIVING DEVICE AND LED LIGHTING APPLIANCE THEREWITH
- Publication number 20140077724
- Publication date Mar 20, 2014
- Rohm Co., Ltd.
- Akinobu Sawada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LIGHT EMITTING DEVICE CONTROL CIRCUIT DEVICE AND CONTROL METHOD OF...
- Publication number 20140049179
- Publication date Feb 20, 2014
- Rohm Co., Ltd.
- Hidekazu Kikuchi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
SWITCHING CURRENT CONTROL CIRCUIT, LED DIMMER SYSTEM, AND LED ILLUM...
- Publication number 20130342122
- Publication date Dec 26, 2013
- ROHM CO., LTD.
- Akinobu Sawada
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LIGHTING SYSTEM
- Publication number 20130002142
- Publication date Jan 3, 2013
- Rohm Co., Ltd.
- Akinobu Sawada
- F21 - LIGHTING
Information Patent Application
LIGHT EMITTER DRIVING DEVICE AND LIGHTING APPLIANCE THEREWITH
- Publication number 20120326616
- Publication date Dec 27, 2012
- ROHM CO., LTD.
- Takeshi Sumitani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
POWER SYSTEM
- Publication number 20120286574
- Publication date Nov 15, 2012
- Rohm Co., Ltd.
- Akinobu Sawada
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
DIMMING CONTROL DEVICE, DIMMING CONTROL METHOD AND LIGHTING APPARAT...
- Publication number 20120200225
- Publication date Aug 9, 2012
- Rohm Co., Ltd.
- Akinobu Sawada
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
LIGHTING APPARATUS
- Publication number 20110285526
- Publication date Nov 24, 2011
- Rohm Co., Ltd.
- Masahide Tanaka
- G01 - MEASURING TESTING
Information Patent Application
LIGHT EMITTING DEVICE CONTROL CIRCUIT DEVICE AND CONTROL METHOD OF...
- Publication number 20110248642
- Publication date Oct 13, 2011
- Rohm Co., Ltd.
- Hidekazu Kikuchi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Portable communication terminal
- Publication number 20080318627
- Publication date Dec 25, 2008
- ROHM CO., LTD.
- Akinobu Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
A/D conversion unit and communications apparatus using the same
- Publication number 20060012504
- Publication date Jan 19, 2006
- ROHM CO., LTD.
- Akinobu Sawada
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Portable communication terminal
- Publication number 20050107141
- Publication date May 19, 2005
- ROHM CO., LTD.
- Akinobu Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Portable electronic apparatus
- Publication number 20040266499
- Publication date Dec 30, 2004
- ROHM CO., LTD.
- Akinobu Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Akinobu Sawada

Person

Patents Grantslast 30 patents

Zero-crossing detection circuit

Zero-crossing detection circuit

Zero-crossing detection circuit

Switching control circuit, switching power supply, and electric app...

Light-emitting-load driving device and illumination-light source de...

Lighting apparatus

Power system

LED power supply device

Switching current control circuit, LED dimmer system, and LED illum...

LED power supply device

Light emitter driving device and lighting appliance therewith

Lighting system including power conversion using a control signal b...

Light emitting device control circuit device and control method of...

Light emitter driving device and lighting appliance therewith

Dimming control device, dimming control method and lighting apparat...

Load driving device and LED lighting appliance therewith

Lighting apparatus

Light emitting device control circuit device and control method of...

Portable communication terminal

Analog to digital converter using both analog and digital offset vo...

Patents Applicationslast 30 patents

ZERO-CROSSING DETECTION CIRCUIT

BUCK CONVERTER

ZERO-CROSSING DETECTION CIRCUIT

ZERO-CROSSING DETECTION CIRCUIT

SWITCHING CONTROL CIRCUIT, SWITCHING POWER SUPPLY, AND ELECTRIC APP...

LIGHT-EMITTING-LOAD DRIVING DEVICE AND ILLUMINATION-LIGHT SOURCE DE...

LED POWER SUPPLY DEVICE

LED POWER SUPPLY DEVICE

LIGHT EMITTER DRIVING DEVICE AND LIGHTING APPLIANCE THEREWITH

Lighting Apparatus

LOAD DRIVING DEVICE AND LED LIGHTING APPLIANCE THEREWITH

LIGHT EMITTING DEVICE CONTROL CIRCUIT DEVICE AND CONTROL METHOD OF...

SWITCHING CURRENT CONTROL CIRCUIT, LED DIMMER SYSTEM, AND LED ILLUM...

LIGHTING SYSTEM

LIGHT EMITTER DRIVING DEVICE AND LIGHTING APPLIANCE THEREWITH

POWER SYSTEM

DIMMING CONTROL DEVICE, DIMMING CONTROL METHOD AND LIGHTING APPARAT...

LIGHTING APPARATUS

LIGHT EMITTING DEVICE CONTROL CIRCUIT DEVICE AND CONTROL METHOD OF...

Portable communication terminal

A/D conversion unit and communications apparatus using the same

Portable communication terminal

Portable electronic apparatus