Inventor · disambiguated record
Kazuhisa Kirita
Also filed as: KIRITA KAZUHISA
5 granted patents·1 pending application·43 citations·filing 1999–2003
77Inventor score
Files withMITSUBISHI PENCIL CO6
Top patents by PatentIndex Score
6 records- 0171US6659672B1Writing implementMITSUBISHI PENCIL CO·Filed 1999·Granted Dec 9, 2003·23 cites·11 claims
- 0270US6517273B2Free-ink type writing instrumentMITSUBISHI PENCIL CO·Filed 2001·Granted Feb 11, 2003·12 cites·1 claims
- 0348US7063475B2Ink-storing body for writing utensilMITSUBISHI PENCIL CO·Filed 2002·Granted Jun 20, 2006·2 cites·16 claims
- 0445US2003196672A1Liquid containerMITSUBISHI PENCIL CO·Filed 2003·Application pending·0 cites
- 0543USD449071STip for a marking penMITSUBISHI PENCIL CO·Filed 2000·Granted Oct 9, 2001·6 cites·1 claims
- 0638US6443649B1Free-ink type writing instrumentMITSUBISHI PENCIL CO·Filed 2001·Granted Sep 3, 2002·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →