Inventor · disambiguated record
Osami Yamauchi
Also filed as: YAMAUCHI OSAMI
5 granted patents·96 citations·filing 1982–2006
81Inventor score
Files withPILOT INK CO LTD5
Top patents by PatentIndex Score
5 records- 0187US7946777B2Multi-refill writing instrumentPILOT INK CO LTD·Filed 2006·Granted May 24, 2011·12 cites·46 claims
- 0273US4913175ALiquid-applying tip assemblyPILOT INK CO LTD·Filed 1988·Granted Apr 3, 1990·47 cites·4 claims
- 0370US4410290AComposite pen tipPILOT INK CO LTD·Filed 1982·Granted Oct 18, 1983·23 cites·6 claims
- 0439US4968169APenpoint assembly and writing instrument employing the samePILOT INK CO LTD·Filed 1988·Granted Nov 6, 1990·8 cites·4 claims
- 0534US5290117APenpoint assembly and writing instrument employing the samePILOT INK CO LTD·Filed 1991·Granted Mar 1, 1994·6 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →