Shohtaroh Sohma

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Overvoltage protection circuit for protecting overvoltage correspon...
- Patent number 10,284,075
- Issue date May 7, 2019
- RICOH ELECTRONIC DEVICES CO., LTD.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply apparatus converting input voltage to predetermined ou...
- Patent number 10,050,517
- Issue date Aug 14, 2018
- RICOH ELECTRONICS DEVICES CO., LTD.
- Yuuta Ogino
- G05 - CONTROLLING REGULATING
Information Patent Grant
Non-insulating type switching power supply device
- Patent number 9,413,243
- Issue date Aug 9, 2016
- RICOH ELECTRONIC DEVICES CO., LTD.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Step-down switching regulator
- Patent number 8,836,300
- Issue date Sep 16, 2014
- Ricoh Company, Ltd.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current-mode control switching regulator and operations control met...
- Patent number 8,624,566
- Issue date Jan 7, 2014
- Ricoh Company, Ltd.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Step-down switching regulator capable of providing high-speed respo...
- Patent number 8,508,963
- Issue date Aug 13, 2013
- Ricoh Company, Ltd.
- Shohtaroh Sohma
- G05 - CONTROLLING REGULATING
Information Patent Grant
Switching regulator capable of stable operation and improved freque...
- Patent number 8,207,721
- Issue date Jun 26, 2012
- Ricoh Company, Ltd.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply circuit
- Patent number 7,884,584
- Issue date Feb 8, 2011
- Ricoh Company, Ltd.
- Katsuhisa Furuse
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching regulator with slope compensation and control method ther...
- Patent number 7,876,073
- Issue date Jan 25, 2011
- Ricoh Company, Ltd.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Synchronous rectification switching regulator, control circuit for...
- Patent number 7,795,849
- Issue date Sep 14, 2010
- Ricoh Company, Ltd.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching regulator
- Patent number 7,679,348
- Issue date Mar 16, 2010
- Ricoh Company, Ltd,
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching regulator having a normal operational mode and a light-lo...
- Patent number 7,649,346
- Issue date Jan 19, 2010
- Ricoh Company, Ltd.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
SWITCHING POWER SUPPLY CIRCUIT
- Publication number 20240154536
- Publication date May 9, 2024
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LIGHTING SYSTEM PROVIDED WITH DIMMER APPARATUS AND LIGHTING EQUIPMENT
- Publication number 20220117056
- Publication date Apr 14, 2022
- RICOH ELECTRONIC DEVICES CO., LTD.
- Shohtaroh SOHMA
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
OVERVOLTAGE PROTECTION CIRCUIT FOR PROTECTING OVERVOLTAGE CORRESPON...
- Publication number 20190058323
- Publication date Feb 21, 2019
- RICOH ELECTRONIC DEVICES CO., LTD.
- Shohtaroh SOHMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY APPARATUS CONVERTING INPUT VOLTAGE TO PREDETERMINED OU...
- Publication number 20180219473
- Publication date Aug 2, 2018
- RICOH ELECTRONIC DEVICES CO., LTD.
- Yuuta OGINO
- G05 - CONTROLLING REGULATING
Information Patent Application
SWITCHING POWER SUPPLY DEVICE
- Publication number 20140077790
- Publication date Mar 20, 2014
- RICOH COMPANY, LTD.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DRIVING CIRCUIT, SEMICONDUCTOR DEVICE HAVING DRIVING CIRCUIT, AND S...
- Publication number 20130099846
- Publication date Apr 25, 2013
- RICOH COMPANY, LTD.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CURRENT-MODE CONTROL SWITCHING REGULATOR AND OPERATIONS CONTROL MET...
- Publication number 20110043175
- Publication date Feb 24, 2011
- RICOH COMPANY ,LTD.
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
STEP-DOWN SWITCHING REGULATOR
- Publication number 20110043176
- Publication date Feb 24, 2011
- Shohtaroh Sohma
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
SWITCHING REGULATOR AND METHOD FOR CONTROLLING OPERATION THEREOF
- Publication number 20100181977
- Publication date Jul 22, 2010
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING POWER SUPPLY CIRCUIT
- Publication number 20100013447
- Publication date Jan 21, 2010
- RICOH COMPANY, LTD.,
- Katsuhisa FURUSE
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
STEP-DOWN SWITCHING REGULATOR CAPABLE OF PROVIDING HIGH-SPEED RESPO...
- Publication number 20090135632
- Publication date May 28, 2009
- RICOH COMPANY, LTD.
- Shohtaroh SOHMA
- G05 - CONTROLLING REGULATING
Information Patent Application
Current-mode controlled switching regulator and control method ther...
- Publication number 20080150508
- Publication date Jun 26, 2008
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Synchronous rectification switching regulator, control circuit for...
- Publication number 20080080219
- Publication date Apr 3, 2008
- Shohtaroh Sohma
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Switching regulator
- Publication number 20070247131
- Publication date Oct 25, 2007
- Shohtaroh Sohma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Switching regulator
- Publication number 20070216388
- Publication date Sep 20, 2007
- Shohtaroh Sohma
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Shohtaroh Sohma

Person

Patents Grantslast 30 patents

Overvoltage protection circuit for protecting overvoltage correspon...

Power supply apparatus converting input voltage to predetermined ou...

Non-insulating type switching power supply device

Step-down switching regulator

Current-mode control switching regulator and operations control met...

Step-down switching regulator capable of providing high-speed respo...

Switching regulator capable of stable operation and improved freque...

Switching power supply circuit

Switching regulator with slope compensation and control method ther...

Synchronous rectification switching regulator, control circuit for...

Switching regulator

Switching regulator having a normal operational mode and a light-lo...

Patents Applicationslast 30 patents

SWITCHING POWER SUPPLY CIRCUIT

LIGHTING SYSTEM PROVIDED WITH DIMMER APPARATUS AND LIGHTING EQUIPMENT

OVERVOLTAGE PROTECTION CIRCUIT FOR PROTECTING OVERVOLTAGE CORRESPON...

POWER SUPPLY APPARATUS CONVERTING INPUT VOLTAGE TO PREDETERMINED OU...

SWITCHING POWER SUPPLY DEVICE

DRIVING CIRCUIT, SEMICONDUCTOR DEVICE HAVING DRIVING CIRCUIT, AND S...

CURRENT-MODE CONTROL SWITCHING REGULATOR AND OPERATIONS CONTROL MET...

STEP-DOWN SWITCHING REGULATOR

SWITCHING REGULATOR AND METHOD FOR CONTROLLING OPERATION THEREOF

SWITCHING POWER SUPPLY CIRCUIT

STEP-DOWN SWITCHING REGULATOR CAPABLE OF PROVIDING HIGH-SPEED RESPO...

Current-mode controlled switching regulator and control method ther...

Synchronous rectification switching regulator, control circuit for...

Switching regulator

Switching regulator