Inventor · disambiguated record
Sumio Ayusawa
Also filed as: AYUSAWA SUMIO
4 granted patents·12 citations·filing 1988–2000
64Inventor score
Top patents by PatentIndex Score
4 records- 0138US6367191B1Method of sawdust-based cultivation of shiitake (Cortinellus shiitake) and a cultivation water tank used for the methodHOKKEN KK·Filed 1999·Granted Apr 9, 2002·11 cites·8 claims
- 0229USPP12928P2Shiitake mushroom plant named ‘HS607’HOKKEN CO LTD·Filed 2000·Granted Sep 10, 2002·0 cites·1 claims
- 0327US6334274B1Method of sawdust-based cultivation shitake (Cortinellus shitake)HOKKEN KK·Filed 1999·Granted Jan 1, 2002·1 cites·6 claims
- 0421US7339PShiitake mushroom plant named `Hokken 601`HOKKEN SANGYO CO LTD·Filed 1988·Granted Sep 25, 1990·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →