Natsuki Yokoyama

Person

Mitaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device with substantially equal impurity concentratio...
- Patent number 9,755,014
- Issue date Sep 5, 2017
- Hitachi Power Semiconductor Device, Ltd.
- Kazuhiro Mochizuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Normally-off power JFET and manufacturing method thereof
- Patent number 9,543,395
- Issue date Jan 10, 2017
- Renesas Electronics Corporation
- Koichi Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with similar impurity concentration JTE regions
- Patent number 9,478,605
- Issue date Oct 25, 2016
- Hitachi Power Semiconductor Device, Ltd.
- Kazuhiro Mochizuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing method of semiconductor device
- Patent number 9,449,814
- Issue date Sep 20, 2016
- Hitachi, Ltd.
- Natsuki Yokoyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with counter doped layer
- Patent number 9,406,743
- Issue date Aug 2, 2016
- Renesas Electronics Corporation
- Yasuaki Kagotoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic circuit device
- Patent number 9,293,453
- Issue date Mar 22, 2016
- Renesas Electronics Corporation
- Haruka Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Trench type Schottky junction semiconductor device and manufacturin...
- Patent number 9,159,562
- Issue date Oct 13, 2015
- Hitachi, Ltd.
- Kumiko Konishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing method of semiconductor device and semiconductor device
- Patent number 9,048,264
- Issue date Jun 2, 2015
- Renesas Electronics Corporation
- Yasuaki Kagotoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power JFET
- Patent number 9,041,049
- Issue date May 26, 2015
- Renesas Electronics Corporation
- Koichi Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device
- Patent number 8,890,278
- Issue date Nov 18, 2014
- Hitachi, Ltd.
- Norifumi Kameshiro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic circuit device
- Patent number 8,872,191
- Issue date Oct 28, 2014
- Renesas Electronics Corporation
- Haruka Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and manufacturing method of the same
- Patent number 8,766,277
- Issue date Jul 1, 2014
- Renesas Electronics Corporation
- Haruka Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with large blocking voltage and manufacturing...
- Patent number 8,564,060
- Issue date Oct 22, 2013
- Hitachi, Ltd.
- Haruka Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Normally-off power JFET and manufacturing method thereof
- Patent number 8,524,552
- Issue date Sep 3, 2013
- Renesas Electronics Corporation
- Koichi Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing method of semiconductor device
- Patent number 8,445,352
- Issue date May 21, 2013
- Hitachi, Ltd.
- Natsuki Yokoyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device including normally-off type junction transisto...
- Patent number 8,436,397
- Issue date May 7, 2013
- Renesas Electronics Corporation
- Haruka Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic circuit device
- Patent number 8,390,001
- Issue date Mar 5, 2013
- Renesas Electronics Corporation
- Haruka Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Silicon carbide semiconductor substrate and method of manufacturing...
- Patent number 8,203,150
- Issue date Jun 19, 2012
- Hitachi Cable, Ltd.
- Toshiyuki Ohno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Integrated micro electro-mechanical system and manufacturing method...
- Patent number 8,129,802
- Issue date Mar 6, 2012
- Hitachi, Ltd.
- Hiroshi Fukuda
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Grant
Bipolar device and fabrication method thereof
- Patent number 7,906,796
- Issue date Mar 15, 2011
- Hitachi, Ltd.
- Kazuhiro Mochizuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with large blocking voltage and method of manu...
- Patent number 7,772,613
- Issue date Aug 10, 2010
- Renesas Technology Corp.
- Haruka Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing nonvolatile semiconductor memory device
- Patent number 7,682,990
- Issue date Mar 23, 2010
- Renesas Technology Corp.
- Hirotaka Hamamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication system and fabrication method
- Patent number 7,603,194
- Issue date Oct 13, 2009
- Renesas Technology Corp.
- Natsuki Yokoyama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Semiconductor device embedded with pressure sensor and manufacturin...
- Patent number 7,451,656
- Issue date Nov 18, 2008
- Hitachi, Ltd.
- Natsuki Yokoyama
- G01 - MEASURING TESTING
Information Patent Grant
Device and data processing method employing the device
- Patent number 7,405,588
- Issue date Jul 29, 2008
- Hitachi, Ltd.
- Takayuki Kawahara
- G11 - INFORMATION STORAGE
Information Patent Grant
Integrated micro electro-mechanical system and manufacturing method...
- Patent number 7,402,449
- Issue date Jul 22, 2008
- Hitachi, Ltd.
- Hiroshi Fukuda
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Grant
Fabrication system and fabrication method
- Patent number 7,392,106
- Issue date Jun 24, 2008
- Renesas Technology Corp.
- Natsuki Yokoyama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Sensor and sensor module
- Patent number 7,325,457
- Issue date Feb 5, 2008
- Hitachi, Ltd.
- Tsukasa Fujimori
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Fabrication system and fabrication method
- Patent number 7,310,563
- Issue date Dec 18, 2007
- Renesas Technology Corp.
- Natsuki Yokoyama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Information storage element, manufacturing method thereof, and memo...
- Patent number 7,306,990
- Issue date Dec 11, 2007
- Japan Science and Technology Agency
- Shinya Yamaguchi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Fuel Cell Stack
- Publication number 20230369628
- Publication date Nov 16, 2023
- Hitachi, Ltd
- Yoshitaka SASAGO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FUEL CELL AND FUEL CELL STACK
- Publication number 20230327164
- Publication date Oct 12, 2023
- Hitachi, Ltd
- Ryuusei FUJITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Fuel Cell and Method for Producing Same
- Publication number 20230127271
- Publication date Apr 27, 2023
- Hitachi High-Tech Corporation
- Yoshitaka SASAGO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Fuel Cell and Method for Producing Fuel Cell
- Publication number 20230006233
- Publication date Jan 5, 2023
- Hitachi High-Tech Corporation
- Noriyuki SAKUMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Fuel Battery Cell and Method for Manufacturing Fuel Battery Cell
- Publication number 20220399558
- Publication date Dec 15, 2022
- Hitachi High-Tech Corporation
- Noriyuki SAKUMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Fuel Cell, Fuel Cell System and Method for Producing Fuel Cell
- Publication number 20220393215
- Publication date Dec 8, 2022
- Hitachi High-Tech Corporation
- Yoshitaka SASAGO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Fuel Cell Array and Fuel Cell Inspection Method
- Publication number 20220384835
- Publication date Dec 1, 2022
- Hitachi High-Tech Corporation
- Yoshitaka SASAGO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20170018605
- Publication date Jan 19, 2017
- HITACHI POWER SEMICONDUCTOR DEVICE, LTD.
- Kazuhiro MOCHIZUKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20160005810
- Publication date Jan 7, 2016
- HITACHI POWER SEMICONDUCTOR DEVICE, LTD.
- Kazuhiro MOCHIZUKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE
- Publication number 20150236089
- Publication date Aug 20, 2015
- RENESAS ELECTRONICS CORPORATION
- Yasuaki KAGOTOSHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NORMALLY-OFF POWER JFET AND MANUFACTURING METHOD THEREOF
- Publication number 20150060887
- Publication date Mar 5, 2015
- Renesas Electronics Corporation
- Koichi Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRONIC CIRCUIT DEVICE
- Publication number 20150041829
- Publication date Feb 12, 2015
- RENESAS ELECTRONICS CORPORATION
- Haruka SHIMIZU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE
- Publication number 20140284625
- Publication date Sep 25, 2014
- RENESAS ELECTRONICS CORPORATION
- Yasuaki KAGOTOSHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NORMALLY-OFF POWER JFET AND MANUFACTURING METHOD THEREOF
- Publication number 20130334542
- Publication date Dec 19, 2013
- RENESAS ELECTRONICS CORPORATION
- Koichi Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE
- Publication number 20130244407
- Publication date Sep 19, 2013
- Natsuki YOKOYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20130140584
- Publication date Jun 6, 2013
- Norifumi Kameshiro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20130105819
- Publication date May 2, 2013
- Hitachi, Ltd
- Norifumi KAMESHIRO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TRENCH TYPE SCHOTTKY JUNCTION SEMICONDUCTOR DEVICE AND MANUFACTURIN...
- Publication number 20130105820
- Publication date May 2, 2013
- Hitachi, Ltd
- Kumiko KONISHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRONIC CIRCUIT DEVICE
- Publication number 20130056754
- Publication date Mar 7, 2013
- Haruka SHIMIZU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NORMALLY-OFF POWER JFET AND MANUFACTURING METHOD THEREOF
- Publication number 20120193641
- Publication date Aug 2, 2012
- Renesas Electronics Corporation
- Koichi Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRONIC CIRCUIT DEVICE
- Publication number 20110220916
- Publication date Sep 15, 2011
- RENESAS ELECTRONICS CORPORATION
- Haruka SHIMIZU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME
- Publication number 20110198613
- Publication date Aug 18, 2011
- RENESAS ELECTRONICS CORPORATION
- Haruka SHIMIZU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE WITH LARGE BLOCKING VOLTAGE AND MANUFACTURING...
- Publication number 20110018004
- Publication date Jan 27, 2011
- Hitachi, Ltd.
- Haruka SHIMIZU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
- Publication number 20100163935
- Publication date Jul 1, 2010
- RENESAS TECHNOLOGY CORP.
- Haruka SHIMIZU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FABRICATION SYSTEM AND FABRICATION METHOD
- Publication number 20100131093
- Publication date May 27, 2010
- Renesas Technology Corp.
- Natsuki Yokoyama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
SEMICONDUCTOR DEVICE WITH LARGE BLOCKING VOLTAGE AND METHOD OF MANU...
- Publication number 20100025739
- Publication date Feb 4, 2010
- Renesas Technology Corp.
- Haruka SHIMIZU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Silicon carbide semiconductor substrate and method of manufacturing...
- Publication number 20090302328
- Publication date Dec 10, 2009
- HITACHI CABLE, LTD.
- Toshiyuki Ohno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE
- Publication number 20090209090
- Publication date Aug 20, 2009
- Hitachi, Ltd.
- Natsuki YOKOYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR SUBSTRATE AND SILICON CARBIDE SEMICON...
- Publication number 20090085044
- Publication date Apr 2, 2009
- Toshiyuki Ohno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Integrated micro electro-mechanical system and manufacturing method...
- Publication number 20090064785
- Publication date Mar 12, 2009
- Hitachi, Ltd.
- Hiroshi Fukuda
- B81 - MICRO-STRUCTURAL TECHNOLOGY

Natsuki Yokoyama

Person

Patents Grantslast 30 patents

Semiconductor device with substantially equal impurity concentratio...

Normally-off power JFET and manufacturing method thereof

Semiconductor device with similar impurity concentration JTE regions

Manufacturing method of semiconductor device

Semiconductor device with counter doped layer

Electronic circuit device

Trench type Schottky junction semiconductor device and manufacturin...

Manufacturing method of semiconductor device and semiconductor device

Power JFET

Semiconductor device

Electronic circuit device

Semiconductor device and manufacturing method of the same

Semiconductor device with large blocking voltage and manufacturing...

Normally-off power JFET and manufacturing method thereof

Manufacturing method of semiconductor device

Semiconductor device including normally-off type junction transisto...

Electronic circuit device

Silicon carbide semiconductor substrate and method of manufacturing...

Integrated micro electro-mechanical system and manufacturing method...

Bipolar device and fabrication method thereof

Semiconductor device with large blocking voltage and method of manu...

Method of manufacturing nonvolatile semiconductor memory device

Fabrication system and fabrication method

Semiconductor device embedded with pressure sensor and manufacturin...

Device and data processing method employing the device

Integrated micro electro-mechanical system and manufacturing method...

Fabrication system and fabrication method

Sensor and sensor module

Fabrication system and fabrication method

Information storage element, manufacturing method thereof, and memo...

Patents Applicationslast 30 patents

Fuel Cell Stack

FUEL CELL AND FUEL CELL STACK

Fuel Cell and Method for Producing Same

Fuel Cell and Method for Producing Fuel Cell

Fuel Battery Cell and Method for Manufacturing Fuel Battery Cell

Fuel Cell, Fuel Cell System and Method for Producing Fuel Cell

Fuel Cell Array and Fuel Cell Inspection Method

SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE

MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE

NORMALLY-OFF POWER JFET AND MANUFACTURING METHOD THEREOF

ELECTRONIC CIRCUIT DEVICE

MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE

NORMALLY-OFF POWER JFET AND MANUFACTURING METHOD THEREOF

MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE

TRENCH TYPE SCHOTTKY JUNCTION SEMICONDUCTOR DEVICE AND MANUFACTURIN...

ELECTRONIC CIRCUIT DEVICE

NORMALLY-OFF POWER JFET AND MANUFACTURING METHOD THEREOF

ELECTRONIC CIRCUIT DEVICE

SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME

SEMICONDUCTOR DEVICE WITH LARGE BLOCKING VOLTAGE AND MANUFACTURING...

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

FABRICATION SYSTEM AND FABRICATION METHOD

SEMICONDUCTOR DEVICE WITH LARGE BLOCKING VOLTAGE AND METHOD OF MANU...

Silicon carbide semiconductor substrate and method of manufacturing...

MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE

SILICON CARBIDE SEMICONDUCTOR SUBSTRATE AND SILICON CARBIDE SEMICON...

Integrated micro electro-mechanical system and manufacturing method...