YOICHI TOKAI

Person

YOKOHAMA-SHI, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Current drive circuit
- Patent number 10,903,832
- Issue date Jan 26, 2021
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Level shift circuit, semiconductor device, and battery supervisory...
- Patent number 10,128,849
- Issue date Nov 13, 2018
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Analog switch and multiplexer
- Patent number 9,680,466
- Issue date Jun 13, 2017
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Step-down switching circuit
- Patent number 9,178,428
- Issue date Nov 3, 2015
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current-direction detecting circuit and DC-DC converter
- Patent number 8,963,522
- Issue date Feb 24, 2015
- Kabushiki Kaisha Toshiba
- Masafumi Otsuka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor integrated circuit and DC-DC converter
- Patent number 8,797,007
- Issue date Aug 5, 2014
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC/DC converter
- Patent number 8,207,722
- Issue date Jun 26, 2012
- Kabushiki Kaisha Toshiba
- Masafumi Otsuka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Level-shifting circuit
- Patent number 6,696,858
- Issue date Feb 24, 2004
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Heat regenerative material formed of particles or filaments
- Patent number 6,336,978
- Issue date Jan 8, 2002
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Ink-jet recording device having an ultrasonic generating element array
- Patent number 6,045,208
- Issue date Apr 4, 2000
- Kabushiki Kaisha Toshiba
- Shuzo Hirahara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Refrigerator comprising a refrigerant and heat regenerative material
- Patent number 6,022,486
- Issue date Feb 8, 2000
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Circuitry for supplying DC power to a small-size electronic apparatus
- Patent number 5,744,943
- Issue date Apr 28, 1998
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Micro power supply device using switching element
- Patent number 5,677,617
- Issue date Oct 14, 1997
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Regenerating material and refrigerator using the same
- Patent number 5,593,517
- Issue date Jan 14, 1997
- Kabushiki Kaisha Toshiba
- Akiko Saito
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Cold accumulating material and method of manufacturing the same
- Patent number 5,449,416
- Issue date Sep 12, 1995
- Kabushiki Kaisha Toshiba
- Tomohisa Arai
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Cryogenic refrigerator and regenerative heat exchange material
- Patent number 5,447,034
- Issue date Sep 5, 1995
- Kabushiki Kaisha Toshiba
- Toru Kuriyama
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Regenerator
- Patent number 5,332,029
- Issue date Jul 26, 1994
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Regenerative material
- Patent number 5,269,854
- Issue date Dec 14, 1993
- Kabushiki Kaisha Toshiba
- Akiko Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cryogenic refrigerator
- Patent number 5,224,657
- Issue date Jul 6, 1993
- Kabushiki Kaisha Toshiba
- Toru Kuriyama
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Super-magnetostrictive alloy
- Patent number 5,223,046
- Issue date Jun 29, 1993
- Kabushiki Kaisha Toshiba
- Tadahiko Kobayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic memory and magnetic alloy thereof
- Patent number 5,190,599
- Issue date Mar 2, 1993
- Kabushiki Kaisha Toshiba
- Masashi Sahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Cold accumulating material and method of manufacturing the same
- Patent number 5,186,765
- Issue date Feb 16, 1993
- Kabushiki Kaisha Toshiba
- Tomohisa Arai
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Super-magnetostrictive alloy
- Patent number 5,110,376
- Issue date May 5, 1992
- Kabushiki Kaisha Toshiba
- Tadahiko Kobayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Torque detecting apparatus
- Patent number 4,891,992
- Issue date Jan 9, 1990
- Kabushiki Kaisha Toshiba
- Tadahiko Kobayashi
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
DC-DC POWER SUPPLY AND LIGHT EMITTING DEVICE
- Publication number 20210298148
- Publication date Sep 23, 2021
- Kabushiki Kaisha Toshiba
- Yoichi TOKAI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
CURRENT DRIVE CIRCUIT
- Publication number 20190296733
- Publication date Sep 26, 2019
- Kabushiki Kaisha Toshiba
- Yoichi TOKAI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Level Shift Circuit, Semiconductor Device, and Battery Supervisory...
- Publication number 20170104489
- Publication date Apr 13, 2017
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ANALOG SWITCH AND MULTIPLEXER
- Publication number 20160204780
- Publication date Jul 14, 2016
- Kabushiki Kaisha Toshiba
- Yoichi Tokai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
STEP-DOWN SWITCHING CIRCUIT
- Publication number 20140266095
- Publication date Sep 18, 2014
- KABUSHIKI KAISHA TOSHIBA
- Yoichi TOKAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SEMICONDUCTOR INTEGRATED CIRCUIT AND DC-DC CONVERTER
- Publication number 20130141060
- Publication date Jun 6, 2013
- Kabushiki Kaisha Toshiba
- Yoichi TOKAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CURRENT-DIRECTION DETECTING CIRCUIT AND DC-DC CONVERTER
- Publication number 20120235656
- Publication date Sep 20, 2012
- Kabushiki Kaisha Toshiba
- Masafumi OTSUKA
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
DC/DC CONVERTER
- Publication number 20110221415
- Publication date Sep 15, 2011
- Kabushiki Kaisha Toshiba
- Masafumi Otsuka
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
DC/DC CONVERTER
- Publication number 20100052627
- Publication date Mar 4, 2010
- Kabushiki Kaisha Toshiba
- Masafumi Otsuka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INK-JET RECORDING DEVICE
- Publication number 20020044171
- Publication date Apr 18, 2002
- SHUZO HIRAHARA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Level-shifting current
- Publication number 20020027450
- Publication date Mar 7, 2002
- Yoichi Tokai
- H03 - BASIC ELECTRONIC CIRCUITRY

YOICHI TOKAI

Person

Patents Grantslast 30 patents

Current drive circuit

Level shift circuit, semiconductor device, and battery supervisory...

Analog switch and multiplexer

Step-down switching circuit

Current-direction detecting circuit and DC-DC converter

Semiconductor integrated circuit and DC-DC converter

DC/DC converter

Level-shifting circuit

Heat regenerative material formed of particles or filaments

Ink-jet recording device having an ultrasonic generating element array

Refrigerator comprising a refrigerant and heat regenerative material

Circuitry for supplying DC power to a small-size electronic apparatus

Micro power supply device using switching element

Regenerating material and refrigerator using the same

Cold accumulating material and method of manufacturing the same

Cryogenic refrigerator and regenerative heat exchange material

Regenerator

Regenerative material

Cryogenic refrigerator

Super-magnetostrictive alloy

Magnetic memory and magnetic alloy thereof

Cold accumulating material and method of manufacturing the same

Super-magnetostrictive alloy

Torque detecting apparatus

Patents Applicationslast 30 patents

DC-DC POWER SUPPLY AND LIGHT EMITTING DEVICE

CURRENT DRIVE CIRCUIT

Level Shift Circuit, Semiconductor Device, and Battery Supervisory...

ANALOG SWITCH AND MULTIPLEXER

STEP-DOWN SWITCHING CIRCUIT

SEMICONDUCTOR INTEGRATED CIRCUIT AND DC-DC CONVERTER

CURRENT-DIRECTION DETECTING CIRCUIT AND DC-DC CONVERTER

DC/DC CONVERTER

DC/DC CONVERTER

INK-JET RECORDING DEVICE

Level-shifting current