Inventor · disambiguated record
Takatsugu Iwashita
Also filed as: IWASHITA TAKATSUGU
7 granted patents·1 pending application·259 citations·filing 1998–2021
85Inventor score
Top patents by PatentIndex Score
8 records- 0197US6325385B1Piston ringTEIKOKU PISTON RING CO LTD·Filed 1999·Granted Dec 4, 2001·116 cites·16 claims
- 0285US6279913B1Sliding member and manufacturing method thereofTEIKOKU PISTON RING CO LTD·Filed 1999·Granted Aug 28, 2001·53 cites·5 claims
- 0381US6142481APiston ringTEIKOKU PISTON RING CO LTD·Filed 1998·Granted Nov 7, 2000·41 cites·12 claims
- 0480US6139022APiston ringTEIKOKU PISTON RING CO LTD·Filed 1998·Granted Oct 31, 2000·49 cites·5 claims
- 0562US9175771B2Piston ringTPR CO LTD·Filed 2015·Granted Nov 3, 2015·0 cites·5 claims
- 0660US12281380B2CRN coating film and sliding memberTPR CO LTD·Filed 2021·Granted Apr 22, 2025·0 cites·6 claims
- 0760US2012248711A1Piston ringIWASHITA TAKATSUGU·Filed 2012·Application pending·0 cites
- 0857US11242929B2Piston ringTPR CO LTD·Filed 2019·Granted Feb 8, 2022·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →