Kei Yoshida

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Compound, material for organic electroluminescent elements, organic...
- Patent number 12,312,317
- Issue date May 27, 2025
- Idemitsu Kosan Co., Ltd.
- Kei Yoshida
- C07 - ORGANIC CHEMISTRY
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 with anticancer activity
- Patent number 12,054,494
- Issue date Aug 6, 2024
- KYOWA KIRIN CO., LTD.
- Kenji Uchida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Organic electroluminescent element, material for organic electrolum...
- Patent number 11,968,894
- Issue date Apr 23, 2024
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compound, material for organic electroluminescent element, organic...
- Patent number 11,903,308
- Issue date Feb 13, 2024
- Idemitsu Kosan Co., Ltd.
- Kei Yoshida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Amide derivatives, process for preparation thereof and use thereof...
- Patent number 11,760,742
- Issue date Sep 19, 2023
- Mitsui Chemicals, Inc.
- Kei Yoshida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compound and organic electroluminescence device using the same
- Patent number 11,765,972
- Issue date Sep 19, 2023
- Idemitsu Kosan Co., Ltd.
- Yoshinao Shirasaki
- 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
Compound with anticancer activity
- Patent number 11,629,152
- Issue date Apr 18, 2023
- KYOWA KIRIN CO., LTD.
- Kenji Uchida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compound, composition, organic electroluminescent element, and elec...
- Patent number 11,618,722
- Issue date Apr 4, 2023
- Idemitsu Kosan Co., Ltd.
- Masatoshi Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound with anticancer activity
- Patent number 11,591,344
- Issue date Feb 28, 2023
- KYOWA KIRIN CO., LTD.
- Kenji Uchida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Organic electroluminescent element and electronic device
- Patent number 11,569,456
- Issue date Jan 31, 2023
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Organic electroluminescent element, and electronic apparatus
- Patent number 11,456,425
- Issue date Sep 27, 2022
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Organic electroluminescent element, electronic device, and compound
- Patent number 11,424,414
- Issue date Aug 23, 2022
- Idemitsu Kosan Co., Ltd.
- Kei Yoshida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound, composition, organic electroluminescent element and elect...
- Patent number 11,271,164
- Issue date Mar 8, 2022
- Idemitsu Kosan Co., Ltd.
- Masatoshi Saito
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Specifically substituted ladder type compounds for organic light em...
- Patent number 11,264,576
- Issue date Mar 1, 2022
- Idemitsu Kosan Co., Ltd.
- Yumiko Mizuki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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
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
Organic electroluminescence device and electronic device
- Patent number 11,043,638
- Issue date Jun 22, 2021
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Amide derivatives, process for preparation thereof and use thereof...
- Patent number 10,995,081
- Issue date May 4, 2021
- Mitsui Chemicals, Inc.
- Kei Yoshida
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Organic electroluminescent element, material for organic electrolum...
- Patent number 10,910,565
- Issue date Feb 2, 2021
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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
Organic electroluminescent element and electronic device
- Patent number 10,811,616
- Issue date Oct 20, 2020
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Organic electroluminescence element and electronic device
- Patent number 10,651,398
- Issue date May 12, 2020
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- H01 - BASIC ELECTRIC ELEMENTS
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
Information Patent Grant
Organic electroluminescent element, electronic device and compound
- Patent number 10,547,009
- Issue date Jan 28, 2020
- Idemitsu Kosan Co., Ltd.
- Kei Yoshida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compound and organic electroluminescent device using same
- Patent number 10,505,123
- Issue date Dec 10, 2019
- Idemitsu Kosan Co., Ltd.
- Kei Yoshida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Amide derivatives, process for preparation thereof and use thereof...
- Patent number 10,435,385
- Issue date Oct 8, 2019
- Mitsui Chemicals, Inc.
- Kei Yoshida
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Organic EL multi-color light-emitting device
- Patent number 10,276,637
- Issue date Apr 30, 2019
- Idemitsu Kosan Co., Ltd.
- Toshiki Matsumoto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compound, organic electroluminescent element and electronic device
- Patent number 10,249,826
- Issue date Apr 2, 2019
- Idemitsu Kosan Co., Ltd.
- Toshinari Ogiwara
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20250230167
- Publication date Jul 17, 2025
- Idemitsu Kosan Co., Ltd.
- Kei YOSHIDA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
- Publication number 20250098521
- Publication date Mar 20, 2025
- Idemitsu Kosan Co.,Ltd
- Yu KUDO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
- Publication number 20250089561
- Publication date Mar 13, 2025
- Idemitsu Kosan Co.,Ltd
- Yu KUDO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
- Publication number 20250084047
- Publication date Mar 13, 2025
- Idemitsu Kosan Co., Ltd.
- Yu KUDO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...
- Publication number 20250057040
- Publication date Feb 13, 2025
- Idemitsu Kosan Co.,Ltd
- Ryota TAKAHASHI
- C07 - ORGANIC CHEMISTRY
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, ORGANIC-ELECTROLUMINESCENCE-DEVICE MATERIAL, ORGANIC ELEC...
- Publication number 20240368103
- Publication date Nov 7, 2024
- Idemitsu Kosan Co., LTD
- Kei YOSHIDA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20240373745
- Publication date Nov 7, 2024
- Idemitsu Kosan Co., Ltd.
- Kazuki TERADA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND WITH ANTICANCER ACTIVITY
- Publication number 20240360149
- Publication date Oct 31, 2024
- KYOWA KIRIN CO., LTD.
- Kenji UCHIDA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...
- Publication number 20240334813
- Publication date Oct 3, 2024
- Idemitsu Kosan Co., Ltd.
- Masato MITANI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC...
- Publication number 20240301281
- Publication date Sep 12, 2024
- IDEMITSU KOSAN CO.,LTD.
- Masatoshi SAITO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Novel Compound and Organic Electroluminescence Device Using the Same
- Publication number 20240300978
- Publication date Sep 12, 2024
- Idemitsu Kosan Co., Ltd.
- Yoshinao SHIRASAKI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, ORGANIC-ELECTROLUMINESCENCE-DEVICE MATERIAL, ORGANIC ELEC...
- Publication number 20240276878
- Publication date Aug 15, 2024
- Idemitsu Kosan Co., Ltd.
- Sigma HASHIMOTO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...
- Publication number 20240268223
- Publication date Aug 8, 2024
- Idemitsu Kosan Co.,Ltd
- Masato MITANI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20240188425
- Publication date Jun 6, 2024
- IDEMITSU KOSAN CO.,LTD.
- Sayaka MIZUTANI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC...
- Publication number 20240172558
- Publication date May 23, 2024
- IDEMITSU KOSAN CO.,LTD.
- Sayaka MIZUTANI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE
- Publication number 20240107876
- Publication date Mar 28, 2024
- Idemitsu Kosan Co.,Ltd
- Hiroaki TOYOSHIMA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20240074311
- Publication date Feb 29, 2024
- Idemitsu Kosan Co.,Ltd
- Shintaro BAN
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
AMIDE DERIVATIVES, PROCESS FOR PREPARATION THEREOF AND USE THEREOF...
- Publication number 20230373947
- Publication date Nov 23, 2023
- Mitsui Chemicals, Inc.
- Kei Yoshida
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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 ELECTROLUMINESCENCE DEVICE, ORGANIC...
- Publication number 20230217813
- Publication date Jul 6, 2023
- Idemitsu Kosan Co.,Ltd
- Masatoshi SAITO
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...
- Publication number 20230200226
- Publication date Jun 22, 2023
- Idemitsu Kosan Co.,Ltd
- Masatoshi SAITO
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20230167072
- Publication date Jun 1, 2023
- IDEMITSU KOSAN CO.,LTD.
- Kei YOSHIDA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND WITH ANTICANCER ACTIVITY
- Publication number 20230159554
- Publication date May 25, 2023
- KYOWA KIRIN CO., LTD.
- Kenji UCHIDA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20230127629
- Publication date Apr 27, 2023
- IDEMITSU KOSAN CO.,LTD.
- Kei YOSHIDA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
- Publication number 20230126981
- Publication date Apr 27, 2023
- Idemitsu Kosan Co., Ltd.
- Toshinari OGIWARA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20230124891
- Publication date Apr 20, 2023
- IDEMITSU KOSAN CO.,LTD.
- Kei YOSHIDA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND, MATERIAL FOR AN ORGANIC ELECTROLUMINESCENCE DEVICE AND AN...
- Publication number 20230123170
- Publication date Apr 20, 2023
- IDEMITSU KOSAN CO.,LTD.
- Heinz WOLLEB
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC...
- Publication number 20230108999
- Publication date Apr 6, 2023
- IDEMITSU KOSAN CO.,LTD.
- Kei YOSHIDA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC...
- Publication number 20230085328
- Publication date Mar 16, 2023
- Idemitsu Kosan Co.,Ltd
- Masato MITANI
- H01 - BASIC ELECTRIC ELEMENTS

Kei Yoshida

Person

Patents Grantslast 30 patents

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

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

Compound with anticancer activity

Organic electroluminescent element, material for organic electrolum...

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

Amide derivatives, process for preparation thereof and use thereof...

Compound and organic electroluminescence device using the same

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

Compound with anticancer activity

Compound, composition, organic electroluminescent element, and elec...

Compound with anticancer activity

Organic electroluminescent element and electronic device

Organic electroluminescent element, and electronic apparatus

Organic electroluminescent element, electronic device, and compound

Compound, composition, organic electroluminescent element and elect...

Specifically substituted ladder type compounds for organic light em...

Organic electroluminescence device and electronic device

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

Organic electroluminescence device and electronic device

Amide derivatives, process for preparation thereof and use thereof...

Organic electroluminescent element, material for organic electrolum...

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

Organic electroluminescent element and electronic device

Organic electroluminescence element and electronic device

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

Organic electroluminescent element, electronic device and compound

Compound and organic electroluminescent device using same

Amide derivatives, process for preparation thereof and use thereof...

Organic EL multi-color light-emitting device

Compound, organic electroluminescent element and electronic device

Patents Applicationslast 30 patents

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

COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE

COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE

COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...

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

COMPOUND, ORGANIC-ELECTROLUMINESCENCE-DEVICE MATERIAL, ORGANIC ELEC...

COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

COMPOUND WITH ANTICANCER ACTIVITY

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...

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

Novel Compound and Organic Electroluminescence Device Using the Same

COMPOUND, ORGANIC-ELECTROLUMINESCENCE-DEVICE MATERIAL, ORGANIC ELEC...

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...

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

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

ORGANIC ELECTROLUMINESCENCE DEVICE

COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

AMIDE DERIVATIVES, PROCESS FOR PREPARATION THEREOF AND USE THEREOF...

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

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC...

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

COMPOUND WITH ANTICANCER ACTIVITY

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

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

COMPOUND, MATERIAL FOR AN ORGANIC ELECTROLUMINESCENCE DEVICE AND AN...

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

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