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Takao SAKUMA
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Organic electroluminescence device and diamine compound for organic...
Patent number
11,968,887
Issue date
Apr 23, 2024
Samsung Display Co., Ltd.
Takao Sakuma
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Organic electroluminescence device and diamine compound for organic...
Patent number
11,930,702
Issue date
Mar 12, 2024
Samsung Display Co., Ltd.
Takao Sakuma
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Organic electroluminescence device and monoamine compound for organ...
Patent number
11,557,735
Issue date
Jan 17, 2023
Samsung Display Co., Ltd.
Takao Sakuma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic electroluminescence device and amine compound for organic e...
Patent number
11,417,843
Issue date
Aug 16, 2022
Samsung Display Co., Ltd.
Takao Sakuma
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
LIGHT EMITTING ELEMENT, AMINE COMPOUND FOR THE SAME, AND DISPLAY DE...
Publication number
20230212135
Publication date
Jul 6, 2023
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT EMITTING ELEMENT AND AMINE COMPOUND FOR THE SAME
Publication number
20230193123
Publication date
Jun 22, 2023
SAMSUNG DISPLAY CO., LTD.
Taku IMAIZUMI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
LIGHT EMITTING ELEMENT AND AMINE COMPOUND FOR THE SAME
Publication number
20230200101
Publication date
Jun 22, 2023
SAMSUNG DISPLAY CO., LTD.
Takuya UNO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND MONOAMINE COMPOUND FOR ORGAN...
Publication number
20230137318
Publication date
May 4, 2023
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND AMINE COMPOUND FOR ORGANIC E...
Publication number
20230103918
Publication date
Apr 6, 2023
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND AMINE COMPOUND FOR ORGANIC E...
Publication number
20230010262
Publication date
Jan 12, 2023
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND DIAMINE COMPOUND FOR ORGANIC...
Publication number
20220344589
Publication date
Oct 27, 2022
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR THE SAME
Publication number
20220246858
Publication date
Aug 4, 2022
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT EMITTING DIODE AND AMINE COMPOUND FOR THE SAME
Publication number
20220173325
Publication date
Jun 2, 2022
SAMSUNG DISPLAY CO., LTD.
Taku IMAIZUMI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND MONOAMINE COMPOUND FOR ORGAN...
Publication number
20200259104
Publication date
Aug 13, 2020
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND POLYCYCLIC COMPOUND FOR ORGA...
Publication number
20200144518
Publication date
May 7, 2020
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND AMINE COMPOUND FOR ORGANIC E...
Publication number
20200119282
Publication date
Apr 16, 2020
SAMSUNG DISPLAY CO., LTD.
Takao SAKUMA
H01 - BASIC ELECTRIC ELEMENTS