Ken Nakahara

Person

Kyoto, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device
- Patent number 11,990,455
- Issue date May 21, 2024
- Rohm Co., Ltd.
- Hiroyuki Sakairi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas concentration measurement system and gas concentration measurem...
- Patent number 11,885,763
- Issue date Jan 30, 2024
- Rohm Co., Ltd.
- Shunsuke Akasaka
- G01 - MEASURING TESTING
Information Patent Grant
Nitride semiconductor device and fabrication method therefor
- Patent number 11,777,024
- Issue date Oct 3, 2023
- Rohm Co., Ltd.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thermal flow sensor
- Patent number 11,692,860
- Issue date Jul 4, 2023
- Rohm Co., Ltd.
- Shunsuke Akasaka
- G01 - MEASURING TESTING
Information Patent Grant
Gate drive circuit
- Patent number 11,482,918
- Issue date Oct 25, 2022
- Rohm Co., Ltd.
- Yuta Okawauchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Nitride semiconductor device
- Patent number 11,393,905
- Issue date Jul 19, 2022
- Rohm Co., Ltd.
- Norikazu Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Negative voltage generation circuit and power conversion device usi...
- Patent number 11,394,288
- Issue date Jul 19, 2022
- Rohm Co., Ltd.
- Yusuke Nakakohara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Ripple injection circuit and electronic device equipped with this c...
- Patent number 11,095,217
- Issue date Aug 17, 2021
- Rohm Co., Ltd.
- Junichi Kashiwagi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gate drive circuit
- Patent number 11,011,970
- Issue date May 18, 2021
- Rohm Co., Ltd.
- Yuta Okawauchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Nitride semiconductor device and fabrication method therefor
- Patent number 10,991,818
- Issue date Apr 27, 2021
- Rohm Co., Ltd.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor device and fabrication method therefor
- Patent number 10,686,064
- Issue date Jun 16, 2020
- Rohm Co., Ltd.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor device and fabrication method therefor
- Patent number 10,256,335
- Issue date Apr 9, 2019
- Rohm Co., Ltd.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor device and fabrication method therefor
- Patent number 9,837,521
- Issue date Dec 5, 2017
- Rohm Co., Ltd.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wireless power supply receiver-transmitter device, wireless power s...
- Patent number 9,806,824
- Issue date Oct 31, 2017
- Rohm Co., Ltd.
- Ken Nakahara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Optical filter
- Patent number 8,975,645
- Issue date Mar 10, 2015
- Rohm Co., Ltd.
- Ken Nakahara
- G01 - MEASURING TESTING
Information Patent Grant
Zinc oxide based compound semiconductor device
- Patent number 8,946,727
- Issue date Feb 3, 2015
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Zinc oxide based compound semiconductor light emitting device
- Patent number 8,941,105
- Issue date Jan 27, 2015
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wireless plethysmogram sensor unit, a processing unit for plethysmo...
- Patent number 8,795,184
- Issue date Aug 5, 2014
- Rohm Co., Ltd.
- Daisuke Niwa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Photodetection device
- Patent number 8,610,133
- Issue date Dec 17, 2013
- Rohm Co., Ltd.
- Ken Nakahara
- G01 - MEASURING TESTING
Information Patent Grant
p-Type MgZnO-based thin film and semiconductor light emitting device
- Patent number 8,410,478
- Issue date Apr 2, 2013
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting device with concave-convex pattern and...
- Patent number 8,304,795
- Issue date Nov 6, 2012
- Rohm Co., Ltd.
- Atsushi Yamaguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
ZnO-based thin film and ZnO-based semiconductor element
- Patent number 8,247,793
- Issue date Aug 21, 2012
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor device
- Patent number 8,154,036
- Issue date Apr 10, 2012
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting device and method for manufacturing th...
- Patent number 8,124,985
- Issue date Feb 28, 2012
- Rohm Co., Ltd.
- Mitsuhiko Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light emitting element
- Patent number 8,053,756
- Issue date Nov 8, 2011
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light emitting element with bragg reflection...
- Patent number 8,049,235
- Issue date Nov 1, 2011
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light emitting element
- Patent number 8,004,006
- Issue date Aug 23, 2011
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Zinc oxide based compound semiconductor device
- Patent number 7,960,727
- Issue date Jun 14, 2011
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transparent electrode
- Patent number 7,948,003
- Issue date May 24, 2011
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting element
- Patent number 7,906,791
- Issue date Mar 15, 2011
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SENSOR SYSTEM
- Publication number 20240418670
- Publication date Dec 19, 2024
- ROHM CO., LTD.
- Shunsuke AKASAKA
- G01 - MEASURING TESTING
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20240284681
- Publication date Aug 22, 2024
- Rohm Co., Ltd.
- Noriyuki Shimoji
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20240014193
- Publication date Jan 11, 2024
- Rohm Co., Ltd.
- Hiroto SAKAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR
- Publication number 20230411508
- Publication date Dec 21, 2023
- ROHM CO., LTD.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE
- Publication number 20230114315
- Publication date Apr 13, 2023
- Rohm Co., Ltd.
- Norikazu ITO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CARBON DIOXIDE GAS SENSOR AND GAS SENSOR ELEMENT
- Publication number 20220381725
- Publication date Dec 1, 2022
- Rohm Co., Ltd.
- Shunsuke AKASAKA
- G01 - MEASURING TESTING
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20220320054
- Publication date Oct 6, 2022
- Rohm Co., Ltd.
- Hiroyuki SAKAIRI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE
- Publication number 20220302262
- Publication date Sep 22, 2022
- ROHM CO., LTD.
- Norikazu ITO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HEATING DEVICE AND STORAGE DEVICE
- Publication number 20220077524
- Publication date Mar 10, 2022
- Shunsuke Akasaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
THERMAL FLOW SENSOR
- Publication number 20210293594
- Publication date Sep 23, 2021
- Rohm Co., Ltd.
- Shunsuke Akasaka
- G01 - MEASURING TESTING
Information Patent Application
GAS CONCENTRATION MEASUREMENT SYSTEM AND GAS CONCENTRATION MEASUREM...
- Publication number 20210247352
- Publication date Aug 12, 2021
- Rohm Co., Ltd.
- Shunsuke Akasaka
- G01 - MEASURING TESTING
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR
- Publication number 20210217886
- Publication date Jul 15, 2021
- ROHM CO., LTD.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GATE DRIVE CIRCUIT
- Publication number 20210083563
- Publication date Mar 18, 2021
- Rohm Co., Ltd.
- Yuta OKAWAUCHI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE
- Publication number 20200365694
- Publication date Nov 19, 2020
- Rohm Co., Ltd.
- Norikazu ITO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NEGATIVE VOLTAGE GENERATION CIRCUIT AND POWER CONVERSION DEVICE USI...
- Publication number 20200350814
- Publication date Nov 5, 2020
- Rohm Co., Ltd.
- Yusuke NAKAKOHARA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Gate Drive Circuit
- Publication number 20200313537
- Publication date Oct 1, 2020
- Rohm Co., Ltd.
- Yuta OKAWAUCHI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR
- Publication number 20200273975
- Publication date Aug 27, 2020
- ROHM CO., LTD.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RIPPLE INJECTION CIRCUIT AND ELECTRONIC DEVICE EQUIPPED WITH THIS C...
- Publication number 20200067407
- Publication date Feb 27, 2020
- Rohm Co., Ltd.
- Junichi KASHIWAGI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR
- Publication number 20190207023
- Publication date Jul 4, 2019
- ROHM CO., LTD.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR
- Publication number 20170338333
- Publication date Nov 23, 2017
- ROHM CO., LTD.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR
- Publication number 20150279982
- Publication date Oct 1, 2015
- Rohm Co., Ltd.
- Kenji Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WIRELESS PLETHYSMOGRAM SENSOR UNIT, A PROCESSING UNIT FOR PLETHYSMO...
- Publication number 20140309537
- Publication date Oct 16, 2014
- Daisuke Niwa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
WIRELESS POWER SUPPLY RECEIVER-TRANSMITTER DEVICE, WIRELESS POWER S...
- Publication number 20140086592
- Publication date Mar 27, 2014
- Rohm Co., Ltd.
- Ken NAKAHARA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
OPTICAL FILTER
- Publication number 20140071525
- Publication date Mar 13, 2014
- Rohm Co., Ltd.
- Ken NAKAHARA
- G02 - OPTICS
Information Patent Application
SEMICONDUCTOR LASER DEVICE
- Publication number 20120213242
- Publication date Aug 23, 2012
- Rohm Co., Ltd.
- Taketoshi Tanaka
- B82 - NANO-TECHNOLOGY
Information Patent Application
PHOTODETECTION DEVICE AND OPTICAL FILTER USED THEREIN
- Publication number 20120199826
- Publication date Aug 9, 2012
- Rohm Co., Ltd.
- Ken NAKAHARA
- G02 - OPTICS
Information Patent Application
SEMICONDUCTOR ELEMENT AND MANUFACTURING METHOD OF THE SAME
- Publication number 20120181531
- Publication date Jul 19, 2012
- Rohm Co., Ltd.
- Ken Nakahara
- C30 - CRYSTAL GROWTH
Information Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND METHOD FOR GROWING NITRIDE SEMICON...
- Publication number 20120064653
- Publication date Mar 15, 2012
- Rohm Co., Ltd.
- Ken Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WIRELESS PLETHYSMOGRAM SENSOR UNIT, A PROCESSING UNIT FOR PLETHYSMO...
- Publication number 20120022382
- Publication date Jan 26, 2012
- Rohm Co., Ltd.
- Niwa Daisuke
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
ZINC OXIDE BASED SUBSTRATE AND METHOD FOR MANUFACTURING ZINC OXIDE...
- Publication number 20110204355
- Publication date Aug 25, 2011
- ROHM CO., LTD.
- Takao SUZUKI
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Ken Nakahara

Person

Patents Grantslast 30 patents

Semiconductor device

Gas concentration measurement system and gas concentration measurem...

Nitride semiconductor device and fabrication method therefor

Thermal flow sensor

Gate drive circuit

Nitride semiconductor device

Negative voltage generation circuit and power conversion device usi...

Ripple injection circuit and electronic device equipped with this c...

Gate drive circuit

Nitride semiconductor device and fabrication method therefor

Nitride semiconductor device and fabrication method therefor

Nitride semiconductor device and fabrication method therefor

Nitride semiconductor device and fabrication method therefor

Wireless power supply receiver-transmitter device, wireless power s...

Optical filter

Zinc oxide based compound semiconductor device

Zinc oxide based compound semiconductor light emitting device

Wireless plethysmogram sensor unit, a processing unit for plethysmo...

Photodetection device

p-Type MgZnO-based thin film and semiconductor light emitting device

Semiconductor light emitting device with concave-convex pattern and...

ZnO-based thin film and ZnO-based semiconductor element

Nitride semiconductor device

Semiconductor light emitting device and method for manufacturing th...

Nitride semiconductor light emitting element

Nitride semiconductor light emitting element with bragg reflection...

Nitride semiconductor light emitting element

Zinc oxide based compound semiconductor device

Transparent electrode

Semiconductor light emitting element

Patents Applicationslast 30 patents

SENSOR SYSTEM

SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE

NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR

NITRIDE SEMICONDUCTOR DEVICE

CARBON DIOXIDE GAS SENSOR AND GAS SENSOR ELEMENT

SEMICONDUCTOR DEVICE

NITRIDE SEMICONDUCTOR DEVICE

HEATING DEVICE AND STORAGE DEVICE

THERMAL FLOW SENSOR

GAS CONCENTRATION MEASUREMENT SYSTEM AND GAS CONCENTRATION MEASUREM...

NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR

GATE DRIVE CIRCUIT

NITRIDE SEMICONDUCTOR DEVICE

NEGATIVE VOLTAGE GENERATION CIRCUIT AND POWER CONVERSION DEVICE USI...

Gate Drive Circuit

NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR

RIPPLE INJECTION CIRCUIT AND ELECTRONIC DEVICE EQUIPPED WITH THIS C...

NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR

NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR

NITRIDE SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR

WIRELESS PLETHYSMOGRAM SENSOR UNIT, A PROCESSING UNIT FOR PLETHYSMO...

WIRELESS POWER SUPPLY RECEIVER-TRANSMITTER DEVICE, WIRELESS POWER S...

OPTICAL FILTER

SEMICONDUCTOR LASER DEVICE

PHOTODETECTION DEVICE AND OPTICAL FILTER USED THEREIN

SEMICONDUCTOR ELEMENT AND MANUFACTURING METHOD OF THE SAME

NITRIDE SEMICONDUCTOR DEVICE AND METHOD FOR GROWING NITRIDE SEMICON...

WIRELESS PLETHYSMOGRAM SENSOR UNIT, A PROCESSING UNIT FOR PLETHYSMO...

ZINC OXIDE BASED SUBSTRATE AND METHOD FOR MANUFACTURING ZINC OXIDE...