Inventor · disambiguated record
Ichiro Nishitani
Also filed as: NISHITANI ICHIRO
9 granted patents·78 citations·filing 2001–2022
86Inventor score
Files withKURETAKE CO LTD9
Top patents by PatentIndex Score
9 records- 0187US6817802B2Writing instrumentKURETAKE CO LTD·Filed 2003·Granted Nov 16, 2004·28 cites·18 claims
- 0268US6807704B2Brush flatter and drawing instrument equipped with brush flatterKURETAKE CO LTD·Filed 2002·Granted Oct 26, 2004·11 cites·9 claims
- 0368US6536969B2Writing tool equipped with ink reservoirKURETAKE CO LTD·Filed 2002·Granted Mar 25, 2003·16 cites·9 claims
- 0460US11472220B2Pen and pen refillKURETAKE CO LTD·Filed 2019·Granted Oct 18, 2022·0 cites·4 claims
- 0559US6439793B1Stippling instrumentKURETAKE CO LTD·Filed 2001·Granted Aug 27, 2002·8 cites·11 claims
- 0657US11752796B2Tail plug and writing instrumentKURETAKE CO LTD·Filed 2022·Granted Sep 12, 2023·0 cites·3 claims
- 0756USD472926SWriting instrumentKURETAKE CO LTD·Filed 2001·Granted Apr 8, 2003·10 cites·1 claims
- 0843USD472925SWriting instrumentKURETAKE CO LTD·Filed 2001·Granted Apr 8, 2003·5 cites·1 claims
- 0940US10081216B2Ink filling toolKURETAKE CO LTD·Filed 2015·Granted Sep 25, 2018·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →