Inventor · disambiguated record

Atsushi Umezawa

Also filed as: UMEZAWA ATSUSHI

2 granted patents·11 citations·filing 2004–2005

50Inventor score

Technology areasG03H G11B

Files withDAINIPPON PRINTING CO LTD1 SHIOURA KUNIHIRO1

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2 records

0166US7090935B2Magnetic cardDAINIPPON PRINTING CO LTD·Filed 2004·Granted Aug 15, 2006·11 cites·8 claims
0237US8223619B2Optical recording medium, reproduction apparatus, and tracking servo methodSHIOURA KUNIHIRO·Filed 2005·Granted Jul 17, 2012·0 cites·1 claims

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