Tadashi Okumura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor optical element
- Patent number 9,269,869
- Issue date Feb 23, 2016
- Hitachi, Ltd.
- Tadashi Okumura
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
MULTI-BEAM SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING T...
- Publication number 20230198228
- Publication date Jun 22, 2023
- Ushio Denki Kabushiki Kaisha
- Tadashi Okumura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING THE SAME
- Publication number 20220209507
- Publication date Jun 30, 2022
- Ushio Denki Kabushiki Kaisha
- Yutaka Inoue
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LASER DEVICE AND OPTICAL APPARATUS
- Publication number 20220209508
- Publication date Jun 30, 2022
- Ushio Denki Kabushiki Kaisha
- Masato Hagimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR OPTICAL ELEMENT
- Publication number 20140355636
- Publication date Dec 4, 2014
- Tadashi Okumura
- H01 - BASIC ELECTRIC ELEMENTS