Kei Nagao

Person

Kyoto, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device and semiconductor device system
- Patent number 11,874,694
- Issue date Jan 16, 2024
- Rohm Co., Ltd.
- Kei Nagao
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Light emitting device driving apparatus, light emitting device driv...
- Patent number 11,395,384
- Issue date Jul 19, 2022
- Rohm Co., Ltd.
- Toru Takahashi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Semiconductor device
- Patent number 10,622,349
- Issue date Apr 14, 2020
- Rohm Co., Ltd.
- Kei Nagao
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Semiconductor device
- Patent number 9,949,333
- Issue date Apr 17, 2018
- Rohm Co., Ltd.
- Kei Nagao
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus for driving light emitting device
- Patent number 9,815,401
- Issue date Nov 14, 2017
- Rohm Co., Ltd.
- Kei Nagao
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Current control circuit, LED current control apparatus, and light e...
- Patent number 7,659,873
- Issue date Feb 9, 2010
- Rohm Co., Ltd.
- Shigeharu Nakao
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR DEVICE AND ELECTRONIC APPLIANCE
- Publication number 20240364442
- Publication date Oct 31, 2024
- Rohm Co., Ltd.
- Kei NAGAO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SEMICONDUCTOR DEVICE AND SYNCHRONIZATION SYSTEM
- Publication number 20240163990
- Publication date May 16, 2024
- Rohm Co., Ltd.
- Kei NAGAO
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
SEMICONDUCTOR DEVICE AND COMMUNICATION SYSTEM
- Publication number 20240163141
- Publication date May 16, 2024
- Rohm Co., Ltd.
- Kei NAGAO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LIGHT EMITTING ELEMENT DRIVING DEVICE
- Publication number 20230422372
- Publication date Dec 28, 2023
- Rohm Co., Ltd.
- Toru TAKAHASHI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE SYSTEM
- Publication number 20230066399
- Publication date Mar 2, 2023
- Rohm Co., Ltd.
- Kei NAGAO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LIGHT EMITTING ELEMENT DRIVING DEVICE
- Publication number 20230007757
- Publication date Jan 5, 2023
- Rohm Co., Ltd.
- Kei NAGAO
- B60 - VEHICLES IN GENERAL
Information Patent Application
Light Emitting Device Driving Apparatus, Light Emitting Device Driv...
- Publication number 20200275537
- Publication date Aug 27, 2020
- Rohm Co., Ltd.
- Toru Takahashi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Semiconductor Device
- Publication number 20180035512
- Publication date Feb 1, 2018
- Rohm Co., Ltd.
- Kei Nagao
- B60 - VEHICLES IN GENERAL
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20180033785
- Publication date Feb 1, 2018
- Rohm Co., Ltd.
- Kei NAGAO
- B60 - VEHICLES IN GENERAL
Information Patent Application
APPARATUS FOR DRIVING LIGHT EMITTING DEVICE
- Publication number 20170101052
- Publication date Apr 13, 2017
- Rohm Co., Ltd.
- Kei Nagao
- B60 - VEHICLES IN GENERAL
Information Patent Application
SWITCH CONTROL CIRCUIT, SWITCHING POWER SUPPLY, AND ELECTRONIC APPA...
- Publication number 20140354345
- Publication date Dec 4, 2014
- Rohm Co., Ltd.
- Kei Nagao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CURRENT CONTROL CIRCUIT, LED CURRENT CONTROL APPARATUS, AND LIGHT E...
- Publication number 20090115347
- Publication date May 7, 2009
- ROHM CO., LTD.
- Shigeharu Nakao
- H03 - BASIC ELECTRONIC CIRCUITRY

Person

Patents Grantslast 30 patents

Semiconductor device and semiconductor device system

Light emitting device driving apparatus, light emitting device driv...

Semiconductor device

Semiconductor device

Apparatus for driving light emitting device

Current control circuit, LED current control apparatus, and light e...

Patents Applicationslast 30 patents

SEMICONDUCTOR DEVICE AND ELECTRONIC APPLIANCE

SEMICONDUCTOR DEVICE AND SYNCHRONIZATION SYSTEM

SEMICONDUCTOR DEVICE AND COMMUNICATION SYSTEM

LIGHT EMITTING ELEMENT DRIVING DEVICE

SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE SYSTEM

LIGHT EMITTING ELEMENT DRIVING DEVICE

Light Emitting Device Driving Apparatus, Light Emitting Device Driv...

Semiconductor Device

SEMICONDUCTOR DEVICE

APPARATUS FOR DRIVING LIGHT EMITTING DEVICE

SWITCH CONTROL CIRCUIT, SWITCHING POWER SUPPLY, AND ELECTRONIC APPA...

CURRENT CONTROL CIRCUIT, LED CURRENT CONTROL APPARATUS, AND LIGHT E...