Keiji OKINAKA

Person

Sodegaura-shi, Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Organic electroluminescence element, display device, and electronic...
- Patent number 12,200,961
- Issue date Jan 14, 2025
- Idemitsu Kosan Co., Ltd.
- Kazuki Nishimura
Information Patent Grant
Compound, material for organic electroluminescent elements, organic...
- Patent number 12,077,500
- Issue date Sep 3, 2024
- Idemitsu Kosan Co., Ltd.
- Satomi Tasaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compound, material for organic electroluminescent element, organic...
- Patent number 11,944,009
- Issue date Mar 26, 2024
- Idemitsu Kosan Co., Ltd.
- Keiichi Yasukawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compound, material for organic electroluminescent elements, organic...
- Patent number 11,739,061
- Issue date Aug 29, 2023
- Idemitsu Kosan Co., Ltd.
- Satomi Tasaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light-emitting device
- Patent number 11,730,052
- Issue date Aug 15, 2023
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compound, material for organic electroluminescence element, organic...
- Patent number 11,482,681
- Issue date Oct 25, 2022
- Idemitsu Kosan Co., Ltd.
- Keiichi Yasukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound, material for organic electroluminescent elements, organic...
- Patent number 11,059,781
- Issue date Jul 13, 2021
- Idemitsu Kosan Co., Ltd.
- Satomi Tasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound, material for organic electroluminescent elements, organic...
- Patent number 10,851,055
- Issue date Dec 1, 2020
- Idemitsu Kosan Co., Ltd.
- Satomi Tasaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compound, material for organic electroluminescent elements, organic...
- Patent number 10,590,080
- Issue date Mar 17, 2020
- Idemitsu Kosan Co., Ltd.
- Satomi Tasaki
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20240400514
- Publication date Dec 5, 2024
- Idemitsu Kosan Co., Ltd.
- Satomi TASAKI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20230322673
- Publication date Oct 12, 2023
- Idemitsu Kosan Co.,Ltd
- Satomi TASAKI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20220363637
- Publication date Nov 17, 2022
- Idemitsu Kosan Co., Ltd.
- Satomi Tasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20220263030
- Publication date Aug 18, 2022
- IDEMITSU KOSAN CO.,LTD.
- Hiromi NAKANO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20220231227
- Publication date Jul 21, 2022
- IDEMITSU KOSAN CO.,LTD.
- Hiromi NAKANO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC...
- Publication number 20210367163
- Publication date Nov 25, 2021
- IDEMITSU KOSAN CO., LTD.
- Keiichi YASUKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ORGANIC ELECTROLUMINESCENCE ELEMENT, DISPLAY DEVICE, AND ELECTRONIC...
- Publication number 20210242428
- Publication date Aug 5, 2021
- IDEMITSU KOSAN CO.,LTD.
- Kazuki NISHIMURA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE ELEMENT, ORGANIC...
- Publication number 20210143341
- Publication date May 13, 2021
- IDEMITSU KOSAN CO.,LTD.
- Keiichi YASUKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20200407315
- Publication date Dec 31, 2020
- Idemitsu Kosan Co., Ltd.
- Satomi Tasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20200148639
- Publication date May 14, 2020
- IDEMITSU KOSAN CO., LTD.
- Satomi Tasaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20160211466
- Publication date Jul 21, 2016
- Idemitsu Kosan Co., Ltd.
- Toshinari OGIWARA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20160130225
- Publication date May 12, 2016
- Idemitsu Kosan Co., Ltd.
- Satomi TASAKI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIGHT-EMITTING DEVICE
- Publication number 20160028025
- Publication date Jan 28, 2016
- Idemitsu Kosan Co., Ltd.
- Toshinari OGIWARA
- H01 - BASIC ELECTRIC ELEMENTS

Keiji OKINAKA

Person

Patents Grantslast 30 patents

Organic electroluminescence element, display device, and electronic...

Compound, material for organic electroluminescent elements, organic...

Compound, material for organic electroluminescent element, organic...

Compound, material for organic electroluminescent elements, organic...

Light-emitting device

Compound, material for organic electroluminescence element, organic...

Compound, material for organic electroluminescent elements, organic...

Compound, material for organic electroluminescent elements, organic...

Compound, material for organic electroluminescent elements, organic...

Patents Applicationslast 30 patents

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC...

ORGANIC ELECTROLUMINESCENCE ELEMENT, DISPLAY DEVICE, AND ELECTRONIC...

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE ELEMENT, ORGANIC...

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...

LIGHT-EMITTING DEVICE