Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12161045 | Pyrromethene boron complex, light emitting element using same, display device, lighting device, color conversion composition, color conversion film, color conversion substrate, light source unit and display | Yasunori Ichihashi, Tsubasa Okano | 2024-12-03 |
| 11957020 | Light-emitting device, display and color conversion substrate | Yasunori Ichihashi, Masahito Nishiyama, Keizo Udagawa, Yuka Tatematsu | 2024-04-09 |
| 11605780 | Compound, light-emitting element containing the same, display device, and lighting device | Takashi Tokuda | 2023-03-14 |
| 11296304 | Organic light-emitting element | Peng Wang, Guangnan Jin, Takeshi Ikeda, Jincai Li | 2022-04-05 |
| 11149196 | Pyrromethene-boron complex, color-changing composition, color-changing film, light source unit including same, display, and lighting | Yasunori Ichihashi, Masaaki Umehara, Hirotoshi Sakaino | 2021-10-19 |
| 10894375 | Color conversion film and light source unit including the same, display, and lighting apparatus | Hirotoshi Sakaino, Masaaki Umehara, Yoshikazu Sato | 2021-01-19 |
| 10836959 | Pyrromethene-boron complex, color-changing composition, color-changing film, light source unit including same, display, and lighting | Yasunori Ichihashi, Masaaki Umehara, Hirotoshi Sakaino | 2020-11-17 |
| 10800970 | Color conversion composition, color conversion film and backlight unit, display and lighting device each comprising same | Hirotoshi Sakaino | 2020-10-13 |
| 10700308 | Aromatic amine compound, light-emitting element materials and light-emitting element | Guangnan Jin, Peng Wang, Fangrong Xu, Lingzhi Zhong, Takeshi Ishigaki +2 more | 2020-06-30 |
| 10483488 | Organic light-emitting element | Guangnan Jin, Peng Wang, Fangrong Xu, Lingzhi Zhong, Takeshi Ishigaki +2 more | 2019-11-19 |
| 10400165 | Color conversion composition, color conversion sheet and light source unit including the same, display, lighting apparatus, backlight unit, LED chip, and LED package | Masaaki Umehara, Hirotoshi Sakaino, Tsubasa Hamano | 2019-09-03 |
| 9935273 | Fluoranthene derivative, light-emitting device material containing same, and light-emitting device | Yasunori Ichihashi, Tsuyoshi Tominaga, Takeshi Ikeda, Takeshi Arai, Atsushi Ikeda | 2018-04-03 |
| 9825239 | Benzindolocarbazole derivative, light-emitting element material produced using same, and light-emitting element | Shinichi Matsuki, Takeshi Ikeda, Atsushi Ikeda | 2017-11-21 |
| 9537107 | Light emitting device material and light emitting device | Kazumasa Nagao, Shinichi Matsuki, Tsuyoshi Tominaga | 2017-01-03 |
| 8916275 | Light emitting device material and light emitting device | Yohei Nakano, Kazunori Sugimoto, Kazumasa Nagao, Tsuyoshi Tominaga | 2014-12-23 |
| 8502201 | Light-emitting element | Kazumasa Nagao, Takeshi Arai, Takeshi Ikeda, Tsuyoshi Tominaga, Yasunori Ichihashi +1 more | 2013-08-06 |
| 7424391 | Period division statistics device, method, and program product | Makoto Muranaka, Hiroshi Miyakawa, Shinya Nishikawa, Maria Kita | 2008-09-09 |
| 7241513 | Fluorene compound and organic luminescent device using the same | Koichi Suzuki, Mizuho Hiraoka, Akihiro Senoo, Naoki Yamada, Chika Negishi +2 more | 2007-07-10 |