Takumi Otsuka

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Anan-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing nitride semiconductor light emitting element
- Patent number 11,824,140
- Issue date Nov 21, 2023
- Nichia Corporation
- Takumi Otsuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing nitride semiconductor light emitting element
- Patent number 11,777,062
- Issue date Oct 3, 2023
- Nichia Corporation
- Takumi Otsuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing nitride semiconductor light emitting element
- Patent number 11,302,847
- Issue date Apr 12, 2022
- Nichia Corporation
- Takumi Otsuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light emitting element
- Patent number 10,804,434
- Issue date Oct 13, 2020
- Nichia Corporation
- Takumi Otsuka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING ELEMENT
- Publication number 20230352629
- Publication date Nov 2, 2023
- Nichia Corporation.
- Yasunobu HOSOKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT EMITTING ELEMENT
- Publication number 20230246138
- Publication date Aug 3, 2023
- Nichia Corporation.
- Eiji MURAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MANUFACTURING NITRIDE SEMICONDUCTOR LIGHT EMITTING ELEMENT
- Publication number 20220181523
- Publication date Jun 9, 2022
- Nichia Corporation.
- Takumi Otsuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MANUFACTURING NITRIDE SEMICONDUCTOR LIGHT EMITTING ELEMENT
- Publication number 20200411723
- Publication date Dec 31, 2020
- Nichia Corporation.
- Takumi Otsuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NITRIDE SEMICONDUCTOR LIGHT EMITTING ELEMENT
- Publication number 20190305187
- Publication date Oct 3, 2019
- Nichia Corporation.
- Takumi Otsuka
- H01 - BASIC ELECTRIC ELEMENTS