Inventor · disambiguated record
Nobuo Sekine
Also filed as: SEKINE NOBUO
10 granted patents·336 citations·filing 1974–2012
91Inventor score
Top patents by PatentIndex Score
10 records- 0193USD363308SBall-point penPILOT INK CO LTD·Filed 1994·Granted Oct 17, 1995·46 cites·1 claims
- 0293US3940637APolymeric piezoelectric key actuated deviceTORAY INDUSTRIES·Filed 1974·Granted Feb 24, 1976·147 cites·7 claims
- 0392US8322937B2Thermochromic writing instrumentIMAMURA YOSHINORI·Filed 2008·Granted Dec 4, 2012·14 cites·24 claims
- 0491USD378761SBall-point penPILOT INK CO LTD·Filed 1996·Granted Apr 8, 1997·44 cites·1 claims
- 0588US9266379B2Thermochromic writing instrumentIMAMURA YOSHINORI·Filed 2012·Granted Feb 23, 2016·4 cites·10 claims
- 0687USD426573SBall-point penPILOT INK CO LTD·Filed 1999·Granted Jun 13, 2000·36 cites·1 claims
- 0766USD426263SBall-point penPILOT INK CO LTD·Filed 1999·Granted Jun 6, 2000·14 cites·1 claims
- 0854US5904432ABallpoint pen tip, manufacturing method therefor, and ballpoint pen using the samePILOT INK CO LTD·Filed 1997·Granted May 18, 1999·11 cites·4 claims
- 0946US6076987ABallpoint pen and cap thereforPILOT INK CO LTD·Filed 1994·Granted Jun 20, 2000·14 cites·38 claims
- 1043US5899625ABallpoint pen tipPILOT INK CO LTD·Filed 1997·Granted May 4, 1999·6 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →