Inventor · disambiguated record
Tomoko Umezawa
Also filed as: UMEZAWA TOMOKO
3 granted patents·165 citations·filing 1990–1994
75Inventor score
Technology areasH04B
Files withSONY CORP3
Top patents by PatentIndex Score
3 records- 0190US5115240AMethod and apparatus for encoding voice signals divided into a plurality of frequency bandsSONY CORP·Filed 1990·Granted May 19, 1992·111 cites·12 claims
- 0272US5151941ADigital signal encoding apparatusSONY CORP·Filed 1990·Granted Sep 29, 1992·52 cites·6 claims
- 0330USRE36559EMethod and apparatus for encoding audio signals divided into a plurality of frequency bandsSONY CORP·Filed 1994·Granted Feb 8, 2000·2 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →