Keiichi Yasukawa

Person

Sodegaura-shi, JP

People

Patents Grantslast 30 patents

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 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
Organic electroluminescence device and electronic device
- Patent number 11,201,297
- Issue date Dec 14, 2021
- Idemitsu Kosan Co., Ltd.
- Kei Yoshizaki
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20240215447
- Publication date Jun 27, 2024
- IDEMITSU KOSAN CO.,LTD.
- Hiromi NAKANO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20240215440
- Publication date Jun 27, 2024
- Idemitsu Kosan Co., Ltd.
- Takushi SHIOMI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20240114780
- Publication date Apr 4, 2024
- Idemitsu Kosan Co.,Ltd
- Yukitoshi JINDE
Information Patent Application
ORGANIC ELECTROLUMINESCENCE ELEMENT AND ELECTRONIC DEVICE
- Publication number 20240057478
- Publication date Feb 15, 2024
- IDEMITSU KOSAN CO.,LTD.
- Kazuki TERADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC...
- Publication number 20230011206
- Publication date Jan 12, 2023
- IDEMITSU KOSAN CO.,LTD.
- Keiichi YASUKAWA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUNDS, MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES, ORGANI...
- Publication number 20230006145
- Publication date Jan 5, 2023
- IDEMITSU KOSAN CO.,LTD.
- Keiichi YASUKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC...
- Publication number 20220388991
- Publication date Dec 8, 2022
- IDEMITSU KOSAN CO.,LTD.
- Shota SAWANO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC APPLIANCE
- Publication number 20220380387
- Publication date Dec 1, 2022
- IDEMITSU KOSAN CO.,LTD.
- Takushi SHIOMI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20220223798
- Publication date Jul 14, 2022
- Idemitsu Kosan Co.,Ltd
- Takushi SHIOMI
- H01 - BASIC ELECTRIC ELEMENTS
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
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20210020846
- Publication date Jan 21, 2021
- IDEMITSU KOSAN CO.,LTD.
- Kei YOSHIZAKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC DEVICE
- Publication number 20190288221
- Publication date Sep 19, 2019
- IDEMITSU KOSAN CO., LTD.
- Kei Yoshizaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHENANTHROLINE COMPOUND, ELECTRON TRANSPORT MATERIAL OBTAINED FROM...
- Publication number 20130180590
- Publication date Jul 18, 2013
- Keiichi Yasukawa
- B82 - NANO-TECHNOLOGY
Information Patent Application
INDENOPERYLENE COMPOUND, MATERIAL FOR ORGANIC THIN-FILM PHOTOVOTAIC...
- Publication number 20130174910
- Publication date Jul 11, 2013
- Idemitsu Kosan Co., Ltd.
- Keiichi Yasukawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Keiichi Yasukawa

Person

Patents Grantslast 30 patents

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

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

Organic electroluminescence device and electronic device

Patents Applicationslast 30 patents

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

ORGANIC ELECTROLUMINESCENCE ELEMENT AND ELECTRONIC DEVICE

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

COMPOUNDS, MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES, ORGANI...

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

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC APPLIANCE

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...

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC DEVICE

PHENANTHROLINE COMPOUND, ELECTRON TRANSPORT MATERIAL OBTAINED FROM...

INDENOPERYLENE COMPOUND, MATERIAL FOR ORGANIC THIN-FILM PHOTOVOTAIC...