Inventor · disambiguated record
Yasuyuki Iwase
Also filed as: IWASE YASUYUKI
5 granted patents·103 citations·filing 1987–1995
81Inventor score
Files withMITSUBISHI PENCIL CO5
Top patents by PatentIndex Score
5 records- 0192USD313245SMarking penMITSUBISHI PENCIL CO·Filed 1987·Granted Dec 25, 1990·50 cites·1 claims
- 0253US5957609AApplicatorMITSUBISHI PENCIL CO·Filed 1995·Granted Sep 28, 1999·20 cites·12 claims
- 0345US4789261ALiquid aerosol applicator with sponge buffer to brushMITSUBISHI PENCIL CO·Filed 1987·Granted Dec 6, 1988·23 cites·3 claims
- 0439US4833751AFixing member for retaining liquid-application member of liquid applicator such as writing instrument, cosmetic instrument and the likeMITSUBISHI PENCIL CO·Filed 1987·Granted May 30, 1989·7 cites·2 claims
- 0527US5067838AValve unit for writing instruments or liquid applicatorsMITSUBISHI PENCIL CO·Filed 1990·Granted Nov 26, 1991·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →