Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11340390 | Color conversion sheet, light source unit comprising same, display and lighting device | Ryo Nagase | 2022-05-24 |
| 11149196 | Pyrromethene-boron complex, color-changing composition, color-changing film, light source unit including same, display, and lighting | Yasunori Ichihashi, Masaaki Umehara, Daisaku Tanaka | 2021-10-19 |
| 10894375 | Color conversion film and light source unit including the same, display, and lighting apparatus | Daisaku Tanaka, 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, Daisaku Tanaka | 2020-11-17 |
| 10800970 | Color conversion composition, color conversion film and backlight unit, display and lighting device each comprising same | Daisaku Tanaka | 2020-10-13 |
| 10604697 | Color conversion sheet, light source unit including the same, display, and lighting apparatus | — | 2020-03-31 |
| 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, Daisaku Tanaka, Tsubasa Hamano | 2019-09-03 |
| 9627625 | Light-emitting device material and light-emitting device | Kazumasa Nagao, Shinichi Matsuki, Takeshi Arai, Tsuyoshi Tominaga | 2017-04-18 |