Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670565 | Illuminated button switch | Shigetaka Douzono, Takayuki Ishikawa, Yoshiharu Abe | 2003-12-30 |
| 6670750 | Luminous EL sheet having a domed diaphragm and a switch employing the EL sheet | Shinji Okuma, Takayuki Ishikawa, Koichi Santo | 2003-12-30 |
| 6611097 | Electroluminescent element comprising reduced number of parts and lighting unit having the same | Minoru Hato, Shinji Okuma, Yoshiharu Abe | 2003-08-26 |