Inventor · disambiguated record
Yumiko Haruhara
Also filed as: HARUHARA YUMIKO
3 granted patents·0 citations·filing 2018–2019
40Inventor score
Files withMITSUBISHI PENCIL CO3
Top patents by PatentIndex Score
3 records- 0154US12054622B2Oil-based ink composition for writing utensils, writing utensil using same, and airbrush unit using sameMITSUBISHI PENCIL CO·Filed 2019·Granted Aug 6, 2024·0 cites·4 claims
- 0248US11649363B2Oil-based ink composition for writing instrumentMITSUBISHI PENCIL CO·Filed 2018·Granted May 16, 2023·0 cites·4 claims
- 0347US11795336B2Oil-based ink composition for writing implementsMITSUBISHI PENCIL CO·Filed 2018·Granted Oct 24, 2023·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →