Inventor · disambiguated record
Yasuaki Ogiwara
Also filed as: OGIWARA YASUAKI
6 granted patents·128 citations·filing 1993–2019
84Inventor score
Files withMITSUBISHI PENCIL CO6
Top patents by PatentIndex Score
6 records- 0184US11427027B2Writing implementMITSUBISHI PENCIL CO·Filed 2019·Granted Aug 30, 2022·2 cites·2 claims
- 0284US5965634AWater base ink compositionMITSUBISHI PENCIL CO·Filed 1997·Granted Oct 12, 1999·51 cites·12 claims
- 0378US5942560AColored resin fine particle water base dispersion liquid for water base inkMITSUBISHI PENCIL CO·Filed 1997·Granted Aug 24, 1999·40 cites·28 claims
- 0476US7405865B2Liquid for electrophoretic display, display medium and display device using the sameMITSUBISHI PENCIL CO·Filed 2004·Granted Jul 29, 2008·17 cites·20 claims
- 0553US5621021AErasable writing ink compositionMITSUBISHI PENCIL CO·Filed 1993·Granted Apr 15, 1997·15 cites·11 claims
- 0631US5959000AErasable inkMITSUBISHI PENCIL CO·Filed 1997·Granted Sep 28, 1999·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →