Inventor
KEIICHI YASUKAWA
Inventor
JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Kprimary
H10KOrganic electric solid-state devices31%
C07DHeterocyclic compounds19%
C09KMaterials for miscellaneous applications, not provided for elsewhere19%
C07BGeneral methods of organic chemistry8%
H01LSemiconductor devices8%
C07CAcyclic or carbocyclic compounds4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
G09FDisplaying4%
H05BElectric heating4%
PatentTitleYear
12,446,463Organic electroluminescent element and electronic device202512,435,269Organic electroluminescent element and electronic appliance202512,421,450Compounds, materials for organic electroluminescent devices, organic electroluminescent devices, and electronic devices202512,274,168Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic appliance202512,200,961Organic electroluminescence element, display device, and electronic apparatus202511,944,009Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device202411,482,681Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device202211,201,297Organic electroluminescence device and electronic device2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to IDEMITSU KOSAN CO (8)· patent assignee history
2021–2025Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IDEMITSU KOSAN CO | 8 | 2021–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 8 | 2021–2025 |