Inventor · disambiguated record
Tsukasa Yamakawa
Also filed as: YAMAKAWA TSUKASA
4 granted patents·1 pending application·31 citations·filing 2001–2012
72Inventor score
Technology areasF16C
Top patents by PatentIndex Score
5 records- 0184US6547443B2Tapered roller bearingNTN TOYO BEARING CO LTD·Filed 2001·Granted Apr 15, 2003·25 cites·10 claims
- 0268US8044544B2Rolling bearing, spindle support structure of main motor for railway vehicle, and bearing structureNTN TOYO BEARING CO LTD·Filed 2006·Granted Oct 25, 2011·3 cites·23 claims
- 0364US9441676B2Bearing assembly including IC tagITO TAKASHI·Filed 2012·Granted Sep 13, 2016·2 cites·8 claims
- 0457US8227950B2Rolling bearing, spindle support structure of main motor for railway vehicle, and bearing structureSONE KATSUNORI·Filed 2011·Granted Jul 24, 2012·1 cites·2 claims
- 0539US2010195949A1Rolling bearingYAGI TAKASHI·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →