Inventor · disambiguated record
Hiroyuki Nagakura
Also filed as: NAGAKURA HIROYUKI
4 granted patents·0 citations·filing 1998–2023
51Inventor score
Files withTPR CO LTD3
Top patents by PatentIndex Score
4 records- 0153US12392301B2Piston unit, top land member, and combination of piston unit partsTPR CO LTD·Filed 2023·Granted Aug 19, 2025·0 cites·7 claims
- 0240US12117084B2Combination of piston rings, and combination structure of piston and piston ringsTPR CO LTD·Filed 2021·Granted Oct 15, 2024·0 cites·8 claims
- 0340US12000491B2Combination of piston rings, and combination structure of piston and piston ringsTPR CO LTD·Filed 2021·Granted Jun 4, 2024·0 cites·18 claims
- 0423US6043862AWet-type plate-making machine for producing printing negativesFiled 1998·Granted Mar 28, 2000·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →