Inventor · disambiguated record
Ryuji Kishihara
Also filed as: KISHIHARA RYUJI
7 granted patents·1 pending application·8 citations·filing 2007–2021
74Inventor score
Top patents by PatentIndex Score
8 records- 0190US11719298B2Coil springSUNCALL CORP·Filed 2021·Granted Aug 8, 2023·2 cites·3 claims
- 0273US9400026B2Spiral springSUNCALL CORP·Filed 2013·Granted Jul 26, 2016·2 cites·4 claims
- 0362US7556011B2Valve structure for internal combustionSUNCALL CORP·Filed 2007·Granted Jul 7, 2009·4 cites·5 claims
- 0454US11181160B2Coil springSUNCALL CORP·Filed 2017·Granted Nov 23, 2021·0 cites·6 claims
- 0548US11499600B2Coil springSUNCALL CORP·Filed 2019·Granted Nov 15, 2022·0 cites·8 claims
- 0643US9782819B2Spiral spring manufacturing methodSUNCALL CORP·Filed 2013·Granted Oct 10, 2017·0 cites·4 claims
- 0741US11131356B2Coil springSUNCALL CORP·Filed 2017·Granted Sep 28, 2021·0 cites·12 claims
- 0838US2007241302A1Valve AssemblyKISHIHARA RYUJI·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →