Inventor · disambiguated record
Naoto Masushige
Also filed as: MASUSHIGE Naoto
5 granted patents·1 pending application·0 citations·filing 2013–2021
59Inventor score
Top patents by PatentIndex Score
6 records- 0160US12460099B2Reversibly thermochromic composition, reversibly thermochromic microcapsule pigment encapsulating reversibly thermochromic composition, and writing instrument using reversibly thermochromic microcapsule pigmentPILOT INK CO LTD·Filed 2020·Granted Nov 4, 2025·0 cites·16 claims
- 0253US11975560B2Ballpoint pen tip, ballpoint pen refill, and ballpoint penPILOT CORPORATION KK·Filed 2021·Granted May 7, 2024·0 cites·9 claims
- 0352US10556459B2Writing instrument for forming thermochromic handwritingPILOT CORPORATION KK·Filed 2016·Granted Feb 11, 2020·0 cites·10 claims
- 0449US2023383175A1Reversibly thermochromic composition and reversibly thermochromic microcapsule pigment encapsulating the samePILOT INK CO LTD·Filed 2021·Application pending·0 cites
- 0548US9375972B2Writing instrumentPILOT CORP·Filed 2013·Granted Jun 28, 2016·0 cites·9 claims
- 0641US12421411B2Aqueous ink composition for reversibly thermochromic writing instrument, and refill and aqueous ballpoint pen incorporating aqueous ink composition for reversibly thermochromic writing instrumentPILOT CORPORATION KK·Filed 2020·Granted Sep 23, 2025·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →