Inventor

Kazuhiro Nagayama

Inventor

Kanagawa, JP

Overview

5→

Patents

2002–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 5 as inventor

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

C07Fprimary

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium20%

C09KMaterials for miscellaneous applications, not provided for elsewhere20%

H01LSemiconductor devices20%

H10KOrganic electric solid-state devices20%

C07CAcyclic or carbocyclic compounds5%

C07DHeterocyclic compounds5%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments5%

G09FDisplaying5%

PatentTitleYear

11,038,126Iridium complex compound, composition containing the compound and solvent, organic electroluminescent element containing the compound, display device, and illumination device2021 10,600,974Iridium complex compound, process for producing the compound, composition including the compound, organic electroluminescent element, display device, and illuminator2020 9,899,606'Composition for organic electroluminescent element, organic electroluminescent element, display and lighting'2018 9,799,837'Iridium complex compound, solution composition containing the compound, organic electroluminescent element, display, and lighting'2017 6,441,246'Catalytic synthesis of aldehydes by direct hydrogenation of carboxylic acids'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to JAPAN SCIENCE & TECH CORP (1)· patent assignee history

2002Based in Higashimurayama, JP· patent location history

2017–2021Patents assigned to MITSUBISHI CHEM CORP (4)· patent assignee history

2017–2020Based in Kanagawa, JP· patent location history

2021Based in Chiyoda-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI CHEM CORP	4	2017–2021
JAPAN SCIENCE & TECH CORP	1	2002

Locations

Location	Patents	Span
Kanagawa, JP	3	2017–2020
Chiyoda-ku, JP	1	2021
Higashimurayama, JP	1	2002