Toshimasa Namekawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Switching power circuit
- Patent number 12,267,010
- Issue date Apr 1, 2025
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rectangular-wave-signal generating circuit and switching power supply
- Patent number 11,601,037
- Issue date Mar 7, 2023
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power circuit
- Patent number 11,594,963
- Issue date Feb 28, 2023
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power circuit
- Patent number 11,290,010
- Issue date Mar 29, 2022
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Constant voltage power source circuit
- Patent number 10,871,793
- Issue date Dec 22, 2020
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Control of a dead time in a DC-DC converter
- Patent number 9,985,549
- Issue date May 29, 2018
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Step-up/down type power supply circuit
- Patent number 8,928,302
- Issue date Jan 6, 2015
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
DC-DC converter and digital pulse width modulator
- Patent number 8,716,998
- Issue date May 6, 2014
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor electrically programmable fuse (eFuse) having a polys...
- Patent number 8,279,700
- Issue date Oct 2, 2012
- Kabushiki Kaisha Toshiba
- Osamu Wada
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having shift registers
- Patent number 8,130,562
- Issue date Mar 6, 2012
- Kabushiki Kaisha Toshiba
- Daichi Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory device
- Patent number 8,120,974
- Issue date Feb 21, 2012
- Kabushiki Kaisha Toshiba
- Kensuke Matsufuji
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory device capable of preventing write...
- Patent number 8,116,152
- Issue date Feb 14, 2012
- Kabushiki Kaisha Toshiba
- Daichi Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Non-volatile semiconductor memory device
- Patent number 8,045,414
- Issue date Oct 25, 2011
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 8,032,815
- Issue date Oct 4, 2011
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor device, charge pumping circuit, and semiconductor mem...
- Patent number 7,956,397
- Issue date Jun 7, 2011
- Kabushiki Kaisha Toshiba
- Osamu Wada
- G11 - INFORMATION STORAGE
Information Patent Grant
Constant voltage boost power supply
- Patent number 7,928,796
- Issue date Apr 19, 2011
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Sense amp circuit, and semiconductor memory device using the same
- Patent number 7,924,642
- Issue date Apr 12, 2011
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory
- Patent number 7,924,598
- Issue date Apr 12, 2011
- Kabushiki Kaisha Toshiba
- Mariko Hase
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory device
- Patent number 7,796,460
- Issue date Sep 14, 2010
- Kabushiki Kaisha Toshiba
- Kensuke Matsufuji
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor charge pump using MOS (metal oxide semiconductor) tra...
- Patent number 7,768,341
- Issue date Aug 3, 2010
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Non-volatile semiconductor storage device
- Patent number 7,733,713
- Issue date Jun 8, 2010
- Kabushiki Kaisha Toshiba
- Hiroaki Nakano
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor storage device having a low resistance wr...
- Patent number 7,656,738
- Issue date Feb 2, 2010
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor integrated circuit device incorporating a data memory...
- Patent number 7,640,466
- Issue date Dec 29, 2009
- Kabushiki Kaisha Toshiba
- Atsushi Nakayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device
- Patent number 7,630,226
- Issue date Dec 8, 2009
- Kabushiki Kaisha Toshiba
- Kensuke Matsufuji
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device in which data is stored in nonvolatile...
- Patent number 7,613,062
- Issue date Nov 3, 2009
- Kabushiki Kaisha Toshiba
- Hiroaki Nakano
- G11 - INFORMATION STORAGE
Information Patent Grant
Non-volatile semiconductor storage device
- Patent number 7,599,206
- Issue date Oct 6, 2009
- Kabushiki Kaisha Toshiba
- Atsushi Nakayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Sense amp circuit, and semiconductor memory device using the same
- Patent number 7,590,018
- Issue date Sep 15, 2009
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device in which capacitance of a MOS capacitor is co...
- Patent number 7,557,400
- Issue date Jul 7, 2009
- Kabushiki Kaisha Toshiba
- Osamu Wada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor charge pump using MOS (metal oxide semiconductor) tra...
- Patent number 7,532,062
- Issue date May 12, 2009
- Kabusiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Nonvolatile semiconductor memory device using nonvolatile storage e...
- Patent number 7,505,300
- Issue date Mar 17, 2009
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
SWITCHING POWER CIRCUIT
- Publication number 20230155501
- Publication date May 18, 2023
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
RECTANGULAR-WAVE-SIGNAL GENERATING CIRCUIT AND SWITCHING POWER SUPPLY
- Publication number 20210091656
- Publication date Mar 25, 2021
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING POWER CIRCUIT
- Publication number 20210083574
- Publication date Mar 18, 2021
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING POWER CIRCUIT
- Publication number 20210067037
- Publication date Mar 4, 2021
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHED-MODE POWER SUPPLY AND SELF-DRIVING DEVICE
- Publication number 20200304034
- Publication date Sep 24, 2020
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONSTANT VOLTAGE POWER SOURCE CIRCUIT
- Publication number 20190086943
- Publication date Mar 21, 2019
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- G05 - CONTROLLING REGULATING
Information Patent Application
CONTROL OF A DEAD TIME IN A DC-DC CONVERTER
- Publication number 20170077821
- Publication date Mar 16, 2017
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
STEP-UP/DOWN TYPE POWER SUPPLY CIRCUIT
- Publication number 20140084882
- Publication date Mar 27, 2014
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DC-DC CONVERTER AND DIGITAL PULSE WIDTH MODULATOR
- Publication number 20120242314
- Publication date Sep 27, 2012
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor device
- Publication number 20100290303
- Publication date Nov 18, 2010
- Kabushiki Kaisha Toshiba
- Osamu Wada
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device having shift registers
- Publication number 20100195410
- Publication date Aug 5, 2010
- Kabushiki Kaisha Toshiba
- Daichi KAKU
- G11 - INFORMATION STORAGE
Information Patent Application
NONVOLATILE SEMICONDUCTOR MEMORY DEVICE
- Publication number 20100182819
- Publication date Jul 22, 2010
- Kabushiki Kaisha Toshiba
- Kensuke Matsufuji
- G11 - INFORMATION STORAGE
Information Patent Application
NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND METHOD OF PROGRAMMING
- Publication number 20100182858
- Publication date Jul 22, 2010
- Kabushiki Kaisha Toshiba
- Daichi KAKU
- G11 - INFORMATION STORAGE
Information Patent Application
NONVOLATILE SEMICONDUCTOR MEMORY
- Publication number 20100177550
- Publication date Jul 15, 2010
- Kabushiki Kaisha Toshiba
- Mariko HASE
- G11 - INFORMATION STORAGE
Information Patent Application
NON-VOLATILE SEMICONDUCTOR MEMORY DEVICE
- Publication number 20100110750
- Publication date May 6, 2010
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
CONSTANT VOLTAGE BOOST POWER SUPPLY
- Publication number 20090315598
- Publication date Dec 24, 2009
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SENSE AMP CIRCUIT, AND SEMICONDUCTOR MEMORY DEVICE USING THE SAME
- Publication number 20090303823
- Publication date Dec 10, 2009
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR CHARGE PUMP USING MOS (METAL OXIDE SEMICONDUCTOR) TRA...
- Publication number 20090201076
- Publication date Aug 13, 2009
- Kabushiki Kaisha Toshiba
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
NON-VOLATILE SEMICONDUCTOR STORAGE DEVICE
- Publication number 20090027973
- Publication date Jan 29, 2009
- Kabushiki Kaisha Toshiba
- Atsushi Nakayama
- G11 - INFORMATION STORAGE
Information Patent Application
NONVOLATILE SEMICONDUCTOR MEMORY DEVICE
- Publication number 20080316852
- Publication date Dec 25, 2008
- Kabushiki Kaisha Toshiba
- Kensuke Matsufuji
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR CHARGE PUMP USING MOS (METAL OXIDE SEMICONDUCTOR) TRA...
- Publication number 20080246535
- Publication date Oct 9, 2008
- Toshimasa Namekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SEMICONDUCTOR DEVICE, CHARGE PUMPING CIRCUIT, AND SEMICONDUCTOR MEM...
- Publication number 20080237673
- Publication date Oct 2, 2008
- Kabushiki Kaisha Toshiba
- Osamu Wada
- G11 - INFORMATION STORAGE
Information Patent Application
SENSE AMP CIRCUIT, AND SEMICONDUCTOR MEMORY DEVICE USING THE SAME
- Publication number 20080212384
- Publication date Sep 4, 2008
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20080165586
- Publication date Jul 10, 2008
- Kabushiki Kaisha Toshiba
- Kensuke MATSUFUJI
- G11 - INFORMATION STORAGE
Information Patent Application
NON-VOLATILE SEMICONDUCTOR STORAGE DEVICE
- Publication number 20080165564
- Publication date Jul 10, 2008
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
NON-VOLATILE SEMICONDUCTOR STORAGE DEVICE
- Publication number 20080094898
- Publication date Apr 24, 2008
- Kabushiki Kaisha Toshiba
- Hiroaki Nakano
- G11 - INFORMATION STORAGE
Information Patent Application
EMBEDDED SEMICONDUCTOR MEMORY DEVICE HAVING SELF-TIMING CONTROL SEN...
- Publication number 20080080295
- Publication date Apr 3, 2008
- Toshimasa Namekawa
- G11 - INFORMATION STORAGE
Information Patent Application
NONVOLATILE SEMICONDUCTOR MEMORY DEVICE USING NONVOLATILE STORAGE E...
- Publication number 20080062782
- Publication date Mar 13, 2008
- Toshimasa Namekawa
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE
- Publication number 20080016427
- Publication date Jan 17, 2008
- Kabushiki Kaisha Toshiba
- Toshimasa NAMEKAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE IN WHICH DATA IS STORED IN NONVOLATILE...
- Publication number 20080002504
- Publication date Jan 3, 2008
- Hiroaki Nakano
- G11 - INFORMATION STORAGE

Toshimasa Namekawa

Person

Patents Grantslast 30 patents

Switching power circuit

Rectangular-wave-signal generating circuit and switching power supply

Switching power circuit

Switching power circuit

Constant voltage power source circuit

Control of a dead time in a DC-DC converter

Step-up/down type power supply circuit

DC-DC converter and digital pulse width modulator

Semiconductor electrically programmable fuse (eFuse) having a polys...

Semiconductor memory device having shift registers

Nonvolatile semiconductor memory device

Nonvolatile semiconductor memory device capable of preventing write...

Non-volatile semiconductor memory device

Semiconductor memory device

Semiconductor device, charge pumping circuit, and semiconductor mem...

Constant voltage boost power supply

Sense amp circuit, and semiconductor memory device using the same

Nonvolatile semiconductor memory

Nonvolatile semiconductor memory device

Semiconductor charge pump using MOS (metal oxide semiconductor) tra...

Non-volatile semiconductor storage device

Nonvolatile semiconductor storage device having a low resistance wr...

Semiconductor integrated circuit device incorporating a data memory...

Semiconductor device

Semiconductor memory device in which data is stored in nonvolatile...

Non-volatile semiconductor storage device

Sense amp circuit, and semiconductor memory device using the same

Semiconductor device in which capacitance of a MOS capacitor is co...

Semiconductor charge pump using MOS (metal oxide semiconductor) tra...

Nonvolatile semiconductor memory device using nonvolatile storage e...

Patents Applicationslast 30 patents

SWITCHING POWER CIRCUIT

RECTANGULAR-WAVE-SIGNAL GENERATING CIRCUIT AND SWITCHING POWER SUPPLY

SWITCHING POWER CIRCUIT

SWITCHING POWER CIRCUIT

SWITCHED-MODE POWER SUPPLY AND SELF-DRIVING DEVICE

CONSTANT VOLTAGE POWER SOURCE CIRCUIT

CONTROL OF A DEAD TIME IN A DC-DC CONVERTER

STEP-UP/DOWN TYPE POWER SUPPLY CIRCUIT

DC-DC CONVERTER AND DIGITAL PULSE WIDTH MODULATOR

Semiconductor device

Semiconductor memory device having shift registers

NONVOLATILE SEMICONDUCTOR MEMORY DEVICE

NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND METHOD OF PROGRAMMING

NONVOLATILE SEMICONDUCTOR MEMORY

NON-VOLATILE SEMICONDUCTOR MEMORY DEVICE

CONSTANT VOLTAGE BOOST POWER SUPPLY

SENSE AMP CIRCUIT, AND SEMICONDUCTOR MEMORY DEVICE USING THE SAME

SEMICONDUCTOR CHARGE PUMP USING MOS (METAL OXIDE SEMICONDUCTOR) TRA...

NON-VOLATILE SEMICONDUCTOR STORAGE DEVICE

NONVOLATILE SEMICONDUCTOR MEMORY DEVICE

SEMICONDUCTOR CHARGE PUMP USING MOS (METAL OXIDE SEMICONDUCTOR) TRA...

SEMICONDUCTOR DEVICE, CHARGE PUMPING CIRCUIT, AND SEMICONDUCTOR MEM...

SENSE AMP CIRCUIT, AND SEMICONDUCTOR MEMORY DEVICE USING THE SAME

SEMICONDUCTOR DEVICE

NON-VOLATILE SEMICONDUCTOR STORAGE DEVICE

NON-VOLATILE SEMICONDUCTOR STORAGE DEVICE

EMBEDDED SEMICONDUCTOR MEMORY DEVICE HAVING SELF-TIMING CONTROL SEN...

NONVOLATILE SEMICONDUCTOR MEMORY DEVICE USING NONVOLATILE STORAGE E...

SEMICONDUCTOR MEMORY DEVICE

SEMICONDUCTOR MEMORY DEVICE IN WHICH DATA IS STORED IN NONVOLATILE...