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Inventor profile of:

Tomoki KATO

City:

Chiba

Country:

Japan

Published Applications:

Last publication date:

2025-10-30

Top Assignees for applications by Tomoki KATO

The entities that hold a legal rights for patent applications filed by inventor KATO Tomoki:

IDEMITSU KOSAN CO., LTD. 24 Tokyo, Japan
IDEMITSU KOSAN CO., LTD. 13 Chiyoda-Ku, Japan
IDEMITSU KOSAN CO., LTD. 4 Chiyoda-ku, Tokyo, Japan
IDEMITSU KOSAN CO.,LTD. 3 Tokyo, Japan
MITSUI CHEMICALS, INC. 2 Tokyo, Japan
MITSUI CHEMICALS, INC 1 Minato-ku, Japan
ReQualia Pharma Inc. 1 Aichi-ken, Japan
UNIVERSAL DISPLAY CORPORATION 1 Ewing, NJ United States
MITSUI CHEMICALS, INC. 1 Minato-ku, Tokyo, Japan
Idemitsu Kosen Co. Ltd 1 Tokyo, Japan

Recent patent applications by KATO Tomoki

Tomoki KATO from Chiba, JP has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2025-10-30

US20250333380A1

Chemistry; metallurgy

AROMATIC AMINE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT ELEMENTS USING SAME

#2 | 2024-05-23

US20240166592A1

Chemistry; metallurgy

COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMINTS, ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

#3 | 2022-08-11

US20220255005A1

Electricity

Aromatic amine derivatives and organic electroluminescent elements using same

#4 | 2021-11-25

US20210363096A1

Chemistry; metallurgy

Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic device

#5 | 2019-09-19

US20190288208A1

Electricity

Aromatic amine derivatives and organic electroluminescent elements using same

#6 | 2018-08-09

US20180222844A1

Chemistry; metallurgy

Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic device

#7 | 2018-02-15

US20180047917A1

Electricity

Biscarbazole derivatives and organic electroluminescence device employing the same

#8 | 2017-06-08

US20170162790A1

Electricity

Aromatic amine derivatives and organic electroluminescent elements using same

#9 | 2016-08-18

US20160240795A1

Electricity

Biscarbazole derivatives and organic electroluminescence device employing the same

#10 | 2016-03-03

US20160064669A1

Electricity

Aromatic amine derivatives and organic electroluminescent elements using same

#11 | 2015-09-10

US20150255729A1

Electricity

Aromatic amine derivative, and organic electroluminescent element

#12 | 2014-12-25

US20140374720A1

Electricity

Aromatic amine derivative and organic electroluminescence element using same

#13 | 2014-10-23

US20140312331A1

Chemistry; metallurgy

Biscarbazole derivatives and organic electroluminescence device employing the same

#14 | 2014-06-19

US20140167026A1

Electricity

Nitrogenated aromatic heterocyclic derivative, and organic electroluminescent element using same

#15 | 2014-04-24

US20140110692A1

Electricity

Organic electroluminescent element

#16 | 2014-03-06

US20140061602A1

Electricity

Organic electroluminescence device

#17 | 2014-01-09

US20140008633A1

Electricity

Bis-carbazole derivative and organic electroluminescent element using same

#18 | 2013-11-21

US20130306961A1

Electricity

ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME

#19 | 2013-11-14

US20130299806A1

Electricity

Aromatic amine derivative and organic electroluminescent element using same

#20 | 2013-01-24

US20130020563A1

Chemistry; metallurgy

POLYCYCLIC COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE EMPLOYING THE SAME

#21 | 2012-12-20

US20120319091A1

Chemistry; metallurgy

AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME

#22 | 2012-11-22

US20120292606A1

Chemistry; metallurgy

Aromatic amine derivative, and organic electroluminescent element

#23 | 2012-10-04

US20120248426A1

Chemistry; metallurgy

Aromatic amine derivative, and organic electroluminescent element comprising same

#24 | 2012-09-06

US20120223295A1

Electricity

Biscarbazole derivatives and organic electroluminescence

#25 | 2012-07-12

US20120175600A1

Electricity

Aromatic amine derivative, and organic electroluminescent element

#26 | 2012-06-14

US20120146014A1

Electricity

Aromatic amine derivatives and organic electroluminescent elements using same

#27 | 2012-05-03

US20120104943A1

Electricity

Material for organic electroluminescence device and organic electroluminescence device using the same

#28 | 2012-01-19

US20120012832A1

Electricity

Aromatic amine derivative and organic electroluminescent element using same

#29 | 2011-12-08

US20110297924A1

Chemistry; metallurgy

Aromatic amine derivative and organic electroluminescent element

#30 | 2011-11-17

US20110278551A1

Electricity

Aromatic amine derivative, and organic electroluminescent element

#31 | 2011-10-20

US20110253995A1

Electricity

Material for organic electroluminescence device and organic electroluminescence device using the same

#32 | 2009-12-17

US20090309488A1

Electricity

Material for organic electroluminescence device and organic electroluminescence device using the same

#33 | 2009-12-10

US20090302743A1

Electricity

Material for organic electroluminescence device and organic electroluminescence device using the same

#34 | 2009-01-15

US20090018158A1

Chemistry; metallurgy

Crystal forms of an imidazole derivative

InventorID:

48136 ⎘