Inventor

Takahiro Kai

Inventor

Kitakyushu, JP

Overview

2009–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 46 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H10Kprimary

H10KOrganic electric solid-state devices21%

C09KMaterials for miscellaneous applications, not provided for elsewhere19%

C07DHeterocyclic compounds16%

H01LSemiconductor devices15%

H05BElectric heating13%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments4%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form1%

C07CAcyclic or carbocyclic compounds0%

PatentTitleYear

10,807,996Material for organic electroluminescent element and organic electroluminescent element in which same is used2020 10,636,981Material for organic electroluminescent element and organic electroluminescent element using the same2020 10,529,932Organic-electroluminescent-element material and organic electroluminescent element using same2020 10,468,608Organic-electroluminescent-element material, and organic electroluminescent element using same2019 10,446,767Organic-electroluminescent-element material and organic electroluminescent element using same2019 10,411,198Material for organic electroluminescent elements, and organic electroluminescent element using same2019 10,361,378Organic electroluminescent device2019 10,340,460Organic electroluminescent element2019 10,305,048Organic-electroluminescent-element material and organic electroluminescent elements using same2019 10,283,721Material for organic electroluminescent elements, and organic electroluminescent element using same2019 9,985,219Organic electroluminescent element2018 9,978,963Material for organic electroluminescent elements, and organic electroluminescent element using same2018 9,865,829'Organic electroluminescent element material and organic electroluminescent element using same'2018 9,716,238'Boron compound for organic electroluminescent elements, and organic electroluminescent element'2017 9,614,166'Organic electroluminescent element'2017 9,466,802'Organic electroluminescent element'2016 9,461,250'Organic electroluminescent device'2016 9,343,685'Organic electroluminescent element'2016 9,337,432'Organic electroluminescent element'2016 9,299,947'Organic electroluminescent device having an electron- and /or exciton-blocking layer comprising an indolocarbazole compound'2016 9,290,498'Organic electroluminescent device having an electron- and/or exciton-blocking layer comprising an indolocarbazole compound'2016 9,260,433'Organic electroluminescent device'2016 9,214,637'Chalcogen-containing aromatic compound, organic semiconductor material, and organic electronic device'2015 9,156,843'Organic electroluminescent device comprising an organic layer containing an indolocarbazole compound'2015 9,142,785'Organic electroluminescent element'2015 9,133,205'Organic electroluminescent device'2015 9,040,962'Depositing premixed materials'2015 8,993,129'Fluorescence and delayed fluorescence-type organic light-emitting material and element'2015 8,986,858'Organic electroluminescent device'2015 8,962,158'Material having indolocarbazole compound for phosphorescent light-emitting element and organic electroluminescent element using the same'2015 8,906,521'Organic electroluminescent device having triptycene derivative material'2014 8,859,109'Compound for organic electroluminescent device and organic electroluminescent device using the same'2014 8,815,416'Organic electroluminescent device using a bipyrimidine compound'2014 8,795,848'Indolocarbazole derivative with fused heterocyclic aromatic group for organic electroluminescent device and organic electroluminescent device containing same'2014 8,722,208'Organic electroluminescent device'2014 8,709,614'Organic metal complex and its use in organic electroluminescent device'2014 8,703,303'Organic electroluminescent device having a light-emitting layer comprising a host material of two or more compounds'2014 8,703,302'Indolocarbazole derivative with aromatic phosphne oxide group for organic electroluminescent device and organic electroluminescent device containing same'2014 8,389,131'Material for use in phosphorescent device and organic electroluminescent device using same'2013 8,227,798'Compound for organic electroluminescent device and organic electroluminescent device'2012 8,062,769'Indolocarbazole compound for use in organic electroluminescent device and organic electroluminescent device'2011 8,013,330'Compound for organic electroluminescent device and organic electroluminescent device'2011 8,012,606'Heterocyclic compound and organic electroluminescent device using the same'2011 8,008,657'Compound for organic electroluminescent device and organic electroluminescent device'2011 7,993,760'Compound for use in organic electroluminescent device and organic electroluminescent device'2011 7,605,277'Aminodibenzodioxin derivative and organic electroluminescent using the same'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2011Based in Fukuoka, JP· patent location history

2011–2016Patents assigned to KAI TAKAHIRO (26)· patent assignee history

2011–2016Patents assigned to YAMAMOTO TOSHIHIRO (20)· patent assignee history

2011–2016Patents assigned to KOMORI MASAKI (15)· patent assignee history

2011–2020Based in Kitakyushu, JP· patent location history

2013–2016Patents assigned to MATSUMOTO MEGUMI (10)· patent assignee history

2014–2020Patents assigned to NIPPON STEEL & SUMIKIN CHEM CO (37)· patent assignee history

2015Based in Kitaktyushu, JP· patent location history

2015Based in Chiyoda-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON STEEL & SUMIKIN CHEM CO	37	2014–2020
KAI TAKAHIROself	26	2011–2016
YAMAMOTO TOSHIHIRO	20	2011–2016
KOMORI MASAKI	15	2011–2016
MATSUMOTO MEGUMI	10	2013–2016

Locations

Location	Patents	Span
Kitakyushu, JP	42	2011–2020
Fukuoka, JP	2	2009–2011
Kitaktyushu, JP	1	2015
Chiyoda-ku, JP	1	2015