Naoki Sakurai

Person

Hitachi-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Power semiconductor module
- Patent number 10,888,941
- Issue date Jan 12, 2021
- Hitachi Power Semiconductor Device, Ltd.
- Daichi Kawamura
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electromechanical integral motor
- Patent number 10,804,765
- Issue date Oct 13, 2020
- Hitachi, Ltd.
- Hisashi Tanie
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Axial gap rotary electric machine
- Patent number 10,566,876
- Issue date Feb 18, 2020
- Hitachi, Ltd.
- Yuji Enomoto
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Calculation method of switching waveform of the inverter and circui...
- Patent number 10,318,679
- Issue date Jun 11, 2019
- Hitachi, Ltd.
- Kazutami Tago
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Level shift circuit and power conversion unit
- Patent number 8,299,836
- Issue date Oct 30, 2012
- Hitachi, Ltd.
- Naoki Sakurai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Integrated circuit for driving semiconductor device and power conve...
- Patent number 7,973,405
- Issue date Jul 5, 2011
- Hitachi, Ltd.
- Yoshimasa Takahashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor element drive device with level shift circuit and app...
- Patent number 7,957,167
- Issue date Jun 7, 2011
- Hitachi, Ltd.
- Koji Yamaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power conversion device
- Patent number 7,851,866
- Issue date Dec 14, 2010
- Hitachi, Ltd.
- Naoki Sakurai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Integrated circuit for driving semiconductor device and power conve...
- Patent number 7,763,974
- Issue date Jul 27, 2010
- Hitachi, Ltd.
- Yoshimasa Takahashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor drive
- Patent number 7,679,944
- Issue date Mar 16, 2010
- Hitachi, Ltd.
- Naoki Sakurai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Trench gate type semiconductor device with current sensing cell
- Patent number 6,180,966
- Issue date Jan 30, 2001
- Hitachi, Ltd.
- Yasuhiko Kohno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power inverter having series connection of semiconductor devices ea...
- Patent number 6,144,046
- Issue date Nov 7, 2000
- Hitachi, Ltd.
- Koumei Hanaoka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Dielectric isolated high voltage semiconductor device
- Patent number 5,977,606
- Issue date Nov 2, 1999
- Hitachi, Ltd.
- Naoki Sakurai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Inverter apparatus having improved switching element
- Patent number 5,962,877
- Issue date Oct 5, 1999
- Hitachi, Ltd.
- Naoki Sakurai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and inverter apparatus using the semiconductor...
- Patent number 5,877,518
- Issue date Mar 2, 1999
- Hitachi, Ltd.
- Naoki Sakurai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dielectric isolated high voltage semiconductor device
- Patent number 5,747,829
- Issue date May 5, 1998
- Hitachi, Ltd.
- Naoki Sakurai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device having parallel connection of an insulated gat...
- Patent number 5,701,018
- Issue date Dec 23, 1997
- Hitachi, Ltd.
- Koumei Hanaoka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power semiconductor device with low on-state voltage
- Patent number 5,631,494
- Issue date May 20, 1997
- Hitachi, Ltd.
- Naoki Sakurai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dielectric isolated high voltage semiconductor device
- Patent number 5,463,243
- Issue date Oct 31, 1995
- Hitachi, Ltd.
- Naoki Sakurai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor integrated circuit unit
- Patent number 5,412,558
- Issue date May 2, 1995
- Hitachi, Ltd.
- Naoki Sakurai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Lateral insulated gate bipolar transistor
- Patent number 5,343,052
- Issue date Aug 30, 1994
- Hitachi, Ltd.
- Tosifumi Oohata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite semiconductor device with Schottky and pn junctions
- Patent number 5,278,443
- Issue date Jan 11, 1994
- Hitachi, Ltd.
- Mutsuhiro Mori
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Parallel circuit module including a diode and an IGBT
- Patent number 5,274,541
- Issue date Dec 28, 1993
- Hitachi, Ltd.
- Shin Kimura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor integrated circuit unit
- Patent number 5,253,156
- Issue date Oct 12, 1993
- Hitachi, Ltd.
- Naoki Sakurai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor Schottky barrier device with pn junctions
- Patent number 5,166,760
- Issue date Nov 24, 1992
- Hitachi, Ltd.
- Mutsuhiro Mori
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Lateral insulated gate bipolar transistor
- Patent number 5,126,806
- Issue date Jun 30, 1992
- Hitachi, Ltd.
- Naoki Sakurai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor schottky device with pn regions
- Patent number 5,101,244
- Issue date Mar 31, 1992
- Hitachi, Ltd.
- Mutsuhiro Mori
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Computer file system
- Patent number 5,093,779
- Issue date Mar 3, 1992
- Hitachi, Ltd.
- Naoki Sakurai
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
POWER SEMICONDUCTOR MODULE
- Publication number 20190126374
- Publication date May 2, 2019
- HITACHI POWER SEMICONDUCTOR DEVICE, LTD.
- Daichi KAWAMURA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Axial Gap Rotary Electric Machine
- Publication number 20190058374
- Publication date Feb 21, 2019
- Hitachi .Ltd.
- Yuji ENOMOTO
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
ELECTROMECHANICAL INTEGRAL MOTOR
- Publication number 20180358863
- Publication date Dec 13, 2018
- Hitachi, Ltd
- Hisashi TANIE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Calculation Method of Switching Waveform of the Inverter and Circui...
- Publication number 20160171139
- Publication date Jun 16, 2016
- Hitachi, Ltd
- Kazutami TAGO
- G01 - MEASURING TESTING
Information Patent Application
Semiconductor Element Control Device and In-Vehicle Electrical System
- Publication number 20120153719
- Publication date Jun 21, 2012
- Hitachi Automotive Systems, Ltd.
- Masamitsu Inaba
- B60 - VEHICLES IN GENERAL
Information Patent Application
LEVEL SHIFT CIRCUIT AND POWER CONVERSION UNIT
- Publication number 20110227626
- Publication date Sep 22, 2011
- Hitachi, Ltd.
- Naoki SAKURAI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Integrated Circuit for Driving Semiconductor Device and Power Conve...
- Publication number 20100225363
- Publication date Sep 9, 2010
- Hitachi, Ltd
- Yoshimasa TAKAHASHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electric Power Conversion Apparatus
- Publication number 20090230938
- Publication date Sep 17, 2009
- Hitachi, Ltd
- Naoki Sakurai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor element drive device, power conversion device, motor...
- Publication number 20070285046
- Publication date Dec 13, 2007
- Hitachi, Ltd
- Koji Yamaguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Motor drive
- Publication number 20070201254
- Publication date Aug 30, 2007
- Naoki Sakurai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Integrated circuit for driving semiconductor device and power conve...
- Publication number 20070008679
- Publication date Jan 11, 2007
- Yoshimasa Takahasi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electric power conversion device
- Publication number 20060215341
- Publication date Sep 28, 2006
- Naoki Sakurai
- H03 - BASIC ELECTRONIC CIRCUITRY

Naoki Sakurai

Person

Patents Grantslast 30 patents

Power semiconductor module

Electromechanical integral motor

Axial gap rotary electric machine

Calculation method of switching waveform of the inverter and circui...

Level shift circuit and power conversion unit

Integrated circuit for driving semiconductor device and power conve...

Semiconductor element drive device with level shift circuit and app...

Electric power conversion device

Integrated circuit for driving semiconductor device and power conve...

Motor drive

Trench gate type semiconductor device with current sensing cell

Power inverter having series connection of semiconductor devices ea...

Dielectric isolated high voltage semiconductor device

Inverter apparatus having improved switching element

Semiconductor device and inverter apparatus using the semiconductor...

Dielectric isolated high voltage semiconductor device

Semiconductor device having parallel connection of an insulated gat...

Power semiconductor device with low on-state voltage

Dielectric isolated high voltage semiconductor device

Semiconductor integrated circuit unit

Lateral insulated gate bipolar transistor

Composite semiconductor device with Schottky and pn junctions

Parallel circuit module including a diode and an IGBT

Semiconductor integrated circuit unit

Semiconductor Schottky barrier device with pn junctions

Lateral insulated gate bipolar transistor

Semiconductor schottky device with pn regions

Computer file system

Patents Applicationslast 30 patents

POWER SEMICONDUCTOR MODULE

Axial Gap Rotary Electric Machine

ELECTROMECHANICAL INTEGRAL MOTOR

Calculation Method of Switching Waveform of the Inverter and Circui...

Semiconductor Element Control Device and In-Vehicle Electrical System

LEVEL SHIFT CIRCUIT AND POWER CONVERSION UNIT

Integrated Circuit for Driving Semiconductor Device and Power Conve...

Electric Power Conversion Apparatus

Semiconductor element drive device, power conversion device, motor...

Motor drive

Integrated circuit for driving semiconductor device and power conve...

Electric power conversion device