Inventor
MASAHIRO KAWAMURA
Inventor
JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Kprimary
H10KOrganic electric solid-state devices25%
C09KMaterials for miscellaneous applications, not provided for elsewhere22%
C07DHeterocyclic compounds19%
H01LSemiconductor devices13%
C07CAcyclic or carbocyclic compounds8%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments5%
H05BElectric heating4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium1%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution1%
Y02PClimate change mitigation technologies in the production or processing of goods1%
PatentTitleYear
RE050748Organic electroluminescence device202612,492,162Organic electroluminescent element and electronic device202512,384,739Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic device202512,364,160Organic electroluminescent element and electronic device202512,077,500Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device202412,022,728Organic electroluminescent element and electronic device202411,939,279Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic device202411,739,061Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device202311,691,983Specifically substituted benzofuro- and benzothienoquinolines for organic light emitting diodes202311,678,571Organic electroluminescent device using aryl amine derivative containing heterocycle202311,631,817Organic electroluminescence element, electronic device, composition, material for organic electroluminescence element, and composition film202311,552,251Organic electroluminescent element and electronic device2023RE049343Organic electroluminescence device202211,456,421Anthracene derivatives, luminescent materials and organic electroluminescent devices202211,289,661Nitrogen-containing heterocyclic compounds for organic light emitting devices202211,283,025Compound, material for organic electroluminescence elements, organic electroluminescence element, and electronic device202211,276,834Light emitting element and display device202211,264,576Specifically substituted ladder type compounds for organic light emitting devices202211,152,574Organic electroluminescent device using aryl amine derivative containing heterocycle2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2026Patents assigned to IDEMITSU KOSAN CO (18)· patent assignee history
2021–2023Patents assigned to JOLED INC (2)· patent assignee history
2021–2026Based in JP· patent location history
2022Patents assigned to SONY CORP (1)· patent assignee history
2022–2025Based in CH· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IDEMITSU KOSAN CO | 18 | 2021–2026 |
| JOLED INC | 2 | 2021–2023 |
| SONY CORP | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 14 | 2021–2026 |
| CH | 5 | 2022–2025 |