Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38243 | Plane light source unit | Ithussei Chiba | 2003-09-02 |
| 5863113 | Plane light source unit | Issei Chiba | 1999-01-26 |
| 5711589 | Plane light source unit | Issei Chiba | 1998-01-27 |
| RE35704 | Plane light source unit | Ithussei Chiba | 1997-12-30 |
| 5193899 | Planar light-source device and illumination apparatus using the same | Issei Chiba | 1993-03-16 |
| 5126882 | Plane light source unit | Ithussei Chiba | 1992-06-30 |
| 5089944 | Planar light-source device and illumination apparatus using the same | Issei Chiba | 1992-02-18 |
| 5034864 | Planar light-source device and illumination apparatus using the same | — | 1991-07-23 |