Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11079628 | Light emitting device having luminous flux control member with recess radially distant from a light incident surface | Kyouhei Yamada | 2021-08-03 |
| 10910533 | Planar light source device and display device | Akinobu Seki | 2021-02-02 |
| 10563825 | Light flux control member, light-emitting device and illumination device | Akinobu Seki | 2020-02-18 |
| 10249223 | Light flux controlling member, light emitting device and illumination apparatus | — | 2019-04-02 |
| 10190730 | Light flux controlling member, light emitting device and illuminating device | Kyouhei Yamada, Akinobu Seki | 2019-01-29 |
| 8926156 | Light-emitting device and illumination device | Akinobu Seki, Hiroshi Takatori, Kyouhei Yamada, Masato Nakamura, Noriyuki Kawahara | 2015-01-06 |