Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6577347 | Television receiver and additional information transmitting method | Toshiro Nishio, Kiyoshi Imai, Akira Usui | 2003-06-10 |
| 6335763 | Television receiver and additional information transmitting method | Toshiro Nishio, Kiyoshi Imai, Akira Usui | 2002-01-01 |
| 5007709 | Diffraction grating and manufacturing method thereof | Masanori Iida, Hiroyuki Asakura, Minoru Nishioka, Koichi Murase | 1991-04-16 |
| 4913525 | Frequency stabilized light source | Hiroshi Asakura, Minoru Nishioka | 1990-04-03 |