Organic EL multi-color light-emitting device
US-10276637-B2 · Apr 30, 2019 · US
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Yoshida Kei patents
Yoshida Kei holds 7 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 7 |
| Recent patents | 0 |
| First publication | Jan 27, 2015 |
| Latest publication | Apr 30, 2019 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Fused heterocyclic aromatic derivative, organic electroluminescence element material, and organic electroluminescence element using same
US-9978952-B2 · May 22, 2018 · US
Nitrogen-containing heteroaromatic ring compound
US-9604972-B2 · Mar 28, 2017 · US
Material for organic electroluminescence device and organic electroluminescence device
US-9306171-B2 · Apr 5, 2016 · US
Fluorene-containing aromatic compound, material for organic electroluminescent element, and organic electroluminescent element using same
US-9266851-B2 · Feb 23, 2016 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Organic EL multi-color light-emitting device
US-10276637-B2 · Apr 30, 2019 · US
Fused heterocyclic aromatic derivative, organic electroluminescence element material, and organic electroluminescence element using same
US-9978952-B2 · May 22, 2018 · US
Nitrogen-containing heteroaromatic ring compound
US-9604972-B2 · Mar 28, 2017 · US
Material for organic electroluminescence device and organic electroluminescence device
US-9306171-B2 · Apr 5, 2016 · US
Fluorene-containing aromatic compound, material for organic electroluminescent element, and organic electroluminescent element using same
US-9266851-B2 · Feb 23, 2016 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Chemistry & Metallurgy | 7 |
| Electricity | 6 |
| Cross-Sectional Technologies | 2 |
| Human Necessities | 1 |