Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12159569 | Self-emissive element panel, LED panel, and planetarium using same | — | 2024-12-03 |
| 9832829 | LED driver circuit | — | 2017-11-28 |
| 8794798 | White film and surface light source using same | Shigetoshi Maekawa, Daisuke Ogata, Masatoshi Izawa, Kozo Takahashi | 2014-08-05 |
| 7887194 | Simplified planetarium apparatus and simplified image projecting apparatus | — | 2011-02-15 |
| 5945956 | Vehicular exterior trim accessory having a built-in antenna | Shogo Izawa, Yoshiro Hattori, Tadahiko Kohama, Nobutoshi Hase, Takaaki Nakano +3 more | 1999-08-31 |