Inventor · disambiguated record
Yukihisa Kumagai
Also filed as: KUMAGAI YUKIHISA
3 granted patents·35 citations·filing 1992–2005
71Inventor score
Top patents by PatentIndex Score
3 records- 0157US5225136AInjection molding method forming strengthened weld by using wellPOLYPLASTICS CO·Filed 1992·Granted Jul 6, 1993·19 cites·9 claims
- 0254US7242610B2Ultraviolet erasable semiconductor memory deviceSANYO ELECTRIC CO·Filed 2005·Granted Jul 10, 2007·4 cites·11 claims
- 0345US5314326AMold having a resin well forming a weld at the union of two separate resin streamsPOLYPLASTICS CO·Filed 1992·Granted May 24, 1994·12 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →