Inventor · disambiguated record
Masao Sumi
Also filed as: SUMI MASAO
3 granted patents·62 citations·filing 1978–1990
73Inventor score
Top patents by PatentIndex Score
3 records- 0161US4140668AWater soluble or water dispersible hot-melt adhesive compositions based on polyvinyl alcohol with residual acetate groups and process for producing the sameUNITIKA LTD·Filed 1978·Granted Feb 20, 1979·21 cites·24 claims
- 0260US4442252ACold-set adhesive compositions comprising polyvinyl alcohol for paper and paper boardUNITIKA LTD·Filed 1982·Granted Apr 10, 1984·25 cites·13 claims
- 0343US5145753ASolid electrolyte fuel cellMITSUBISHI HEAVY IND LTD·Filed 1990·Granted Sep 8, 1992·16 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →