Inventor · disambiguated record

Itsuka Ohno

Also filed as: OHNO Itsuka

1 granted patent·0 citations·filing 2020–2020

7Inventor score

Technology areasB43K

Files withPILOT CORPORATION KK1

Top patents by PatentIndex Score

1 record

0141US12421411B2Aqueous 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 →