Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8371724 | Light emitting device | Yuji Tamaki, Eiichi Sugimoto, Tatsuya Goto, Nobuhiro Kobayashi | 2013-02-12 |
| 5990631 | Stroboscope circuit controlling dimmer operation | Keizo Sekido | 1999-11-23 |