Inventor · disambiguated record

Ryoichi Okayasu

Also filed as: OKAYASU RYOICHI

2 granted patents·64 citations·filing 1974–1996

65Inventor score

Technology areasH01F H04M

Files withNIPPON TELEGRAPH & TELEPHONE2

Top patents by PatentIndex Score

2 records

0176US5726611AEMC filter for a balanced multi-wired telecommunication line with bifilar windingsNIPPON TELEGRAPH & TELEPHONE·Filed 1996·Granted Mar 10, 1998·44 cites·12 claims
0270US3952166ALoudspeaking telephone circuitNIPPON TELEGRAPH & TELEPHONE·Filed 1974·Granted Apr 20, 1976·20 cites·13 claims

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