Inventor · disambiguated record
Atushi Katayama
Also filed as: KATAYAMA ATUSHI
4 granted patents·53 citations·filing 2005–2011
77Inventor score
Top patents by PatentIndex Score
4 records- 0190US7970164B2Digital watermark padding method, digital watermark padding device, digital watermark detecting method, digital watermark detecting device, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Jun 28, 2011·22 cites·86 claims
- 0284US7489796B2Electronic watermark embedding device, electronic watermark detection device, method thereof, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Feb 10, 2009·12 cites·20 claims
- 0383US8126202B2Digital watermark padding method, digital watermark padding device, digital watermark detecting method, digital watermark detecting device, and programNAKAMURA TAKAO·Filed 2011·Granted Feb 28, 2012·8 cites·40 claims
- 0477US7672474B2Electronic watermark embedding device, electronic watermark detection device, method thereof, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Mar 2, 2010·11 cites·6 claims
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