Issued Patents All Time
Showing 25 most recent of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11296280 | Anthracene derivative, light emitting element using the same, and light emitting device using the same | Sachiko Kawakami, Kumi Kojima, Ryoji Nomura, Nobuharu Ohsawa | 2022-04-05 |
| 10326078 | Anthracene derivative, light-emitting element using the same, and light-emitting device using the same | Sachiko Kawakami, Kumi Kojima, Ryoji Nomura, Nobuharu Ohsawa | 2019-06-18 |
| 10134996 | Composite material, light-emitting element, light-emitting device, and manufacturing method thereof | Satoshi Seo, Ryoji Nomura, Satoko Shitagaki | 2018-11-20 |
| 10079345 | Anthracene derivative, and light-emitting element, light-emitting device, electronic device using anthracene derivative | Masakazu Egawa, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura | 2018-09-18 |
| 10056559 | Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device | Sachiko Kawakami | 2018-08-21 |
| 9899602 | Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device | Sachiko Kawakami | 2018-02-20 |
| 9548457 | Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device | Sachiko Kawakami | 2017-01-17 |
| 9478751 | Anthracene derivative, light emitting element using the same, and light emitting device using the same | Sachiko Kawakami, Kumi Kojima, Ryoji Nomura, Nobuharu Ohsawa | 2016-10-25 |
| 9324951 | Pyrazine derivative, and light emitting element, display device, electronic device using the pyrazine derivative | Hiroko Murata, Masakazu Egawa, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo | 2016-04-26 |
| 9287511 | Anthracene derivative, and light-emitting element, light-emitting device, electronic device using anthracene derivative | Masakazu Egawa, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura | 2016-03-15 |
| 9203035 | Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device | Sachiko Kawakami | 2015-12-01 |
| 9142783 | Light emitting element and light emitting device | Sachiko Kawakami, Daisuke Kumaki, Satoshi Seo, Hisao Ikeda, Junichiro Sakata +1 more | 2015-09-22 |
| 9048436 | Oxadiazole derivative, and light emitting element, light emitting device, and electronic device using the oxadiazole derivative | Hiroko Murata, Sachiko Kawakami, Nobuharu Ohsawa, Ryoji Nomura, Satoshi Seo | 2015-06-02 |
| 8920941 | Pyrazine derivative, and light emitting element, display device, electronic device using the pyrazine derivative | Hiroko Murata, Masakazu Egawa, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo | 2014-12-30 |
| 8901542 | Stilbene derivatives, light-emitting element and light-emitting device | Masakazu Egawa, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura | 2014-12-02 |
| 8900728 | Carbazole derivative, and light emitting element and light emitting device using the carbazole derivative | Sachiko Kawakami, Daisuke Kumaki | 2014-12-02 |
| 8815410 | Anthracene derivative, light emitting element using the same, and light emitting device using the same | Sachiko Kawakami, Kumi Kojima, Ryoji Nomura, Nobuharu Ohsawa | 2014-08-26 |
| 8704212 | Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device | Sachiko Kawakami | 2014-04-22 |
| 8704242 | Aromatic amine compound, and light emitting element, light emitting device, and electronic device using aromatic amine compound | Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo | 2014-04-22 |
| 8686628 | Anthracene derivative | Sachiko Kawakami, Kumi Kojima, Nobuharu Ohsawa, Ryoji Nomura | 2014-04-01 |
| 8686159 | Oxadiazole derivative, and light emitting element, light emitting device, and electronic device using the oxadiazole derivative | Hiroko Murata, Sachiko Kawakami, Nobuharu Ohsawa, Ryoji Nomura, Satoshi Seo | 2014-04-01 |
| 8603647 | Anthracene derivative, material for light emitting element, light emitting element, light emitting device, and electronic device | Sachiko Kawakami, Nobuharu Ohsawa, Kumi Kojima, Satoshi Seo, Masakazu Egawa +1 more | 2013-12-10 |
| 8471017 | Quinoxaline derivative, and light-emitting element, light-emitting device, electronic device using the quinoxaline derivative | Masakazu Egawa, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura | 2013-06-25 |
| 8431252 | Anthracene derivative, and light-emitting element, light-emitting device, electronic device using anthracene derivative | Masakazu Egawa, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura | 2013-04-30 |
| 8431248 | Carbazole derivative, and light emitting element and light emitting device using the carbazole derivative | Sachiko Kawakami, Daisuke Kumaki | 2013-04-30 |