Inventor · disambiguated record

Ryu-Ichi Oka

Also filed as: OKA RYU-ICHI

1 granted patent·20 citations·filing 1988–1988

40Inventor score

Technology areasG10L

Files withSANYO ELECTRIC CO1

Top patents by PatentIndex Score

1 record

0142US4989249AMethod of feature determination and extraction and recognition of voice and apparatus thereforeSANYO ELECTRIC CO·Filed 1988·Granted Jan 29, 1991·20 cites·42 claims

Join the waitlist — get patent alerts

Get an alert when Ryu-Ichi Oka files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →