Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6636551 | ADDITIONAL INFORMATION TRANSMISSION METHOD, ADDITIONAL INFORMATION TRANSMISSION SYSTEM, INFORMATION SIGNAL OUTPUT APPARATUS, INFORMATION SIGNAL PROCESSING APPARATUS, INFORMATION SIGNAL RECORDING APPARATUS AND INFORMATION SIGNAL RECORDING MEDIUM | Akira Ogino, Takashi Kohashi, Yuji Kimura, Hisayoshi Moriwaki | 2003-10-21 |
| 6574735 | Information signal recording/reproducing system, information signal recording device, information signal reproducing device and information signal recording/reproducing process | Akira Ogino | 2003-06-03 |
| 6510183 | Method and apparatus for superimposing and detecting an additional information signal | Akira Ogino, Takehiro Sugita, Takashi Usui | 2003-01-21 |