Inventor · disambiguated record
Naosumi Tada
Also filed as: TADA NAOSUMI
20 granted patents·4 pending applications·600 citations·filing 1995–2002
96Inventor score
Top patents by PatentIndex Score
24 records- 0195US6435993B1Hydraulic chain tensioner with vent device and pressure relief valveBORGWARNER INC·Filed 2000·Granted Aug 20, 2002·64 cites·8 claims
- 0295US5879256AHydraulic tensioner having a piston with a pressure relief valve and grooved tipBORG WARNER AUTOMOTIVE KK·Filed 1997·Granted Mar 9, 1999·73 cites·4 claims
- 0393US6352487B1Hydraulic chain tensioner with directional vent deviceBORG WARNER AUTOMOTIVE KK·Filed 2000·Granted Mar 5, 2002·47 cites·13 claims
- 0493US5601505AHydraulic tensionerBORG WARNER AUTOMOTIVE KK·Filed 1995·Granted Feb 11, 1997·67 cites·11 claims
- 0589US6524202B1Blade-type chain tensionerBORG WARNER AUTOMOTIVE KK·Filed 2000·Granted Feb 25, 2003·33 cites·10 claims
- 0688US6364796B1Blade chain tensionerBORG WARNER AUTOMOTIVE KK·Filed 2000·Granted Apr 2, 2002·34 cites·6 claims
- 0788US5860881AHydraulic tensioner having an internal rack mechanismBORG WARNER AUTOMOTIVE KK·Filed 1997·Granted Jan 19, 1999·44 cites·6 claims
- 0887US6440020B1Blade-type chain tensionerBORG WARNER AUTOMOTIVE KK·Filed 2000·Granted Aug 27, 2002·29 cites·8 claims
- 0983US5720682ATensioner arm and chain guide with passages for oil drainageBORG WARNER AUTOMOTIVE KK·Filed 1996·Granted Feb 24, 1998·35 cites·4 claims
- 1082US5935031AHydraulic tensioner having an air vent channelBORG WARNER AUTOMOTIVE KK·Filed 1997·Granted Aug 10, 1999·30 cites·2 claims
- 1180US6680129B2Steel compositionBORGWARNER INC·Filed 2002·Granted Jan 20, 2004·19 cites·4 claims
- 1275US6641496B2Blade tensionerBORGWARNER INC·Filed 2001·Granted Nov 4, 2003·15 cites·9 claims
- 1374US5803854ASilent chain having a sheared link bearing surfaceBORG WARNER AUTOMOTIVE KK·Filed 1997·Granted Sep 8, 1998·28 cites·5 claims
- 1473US6612953B2Blade tensionerBORG WARNER MORSE TEC JAPAN K·Filed 2001·Granted Sep 2, 2003·17 cites·20 claims
- 1573US6582765B2Carbide coated steel articles and method of making themBORGWARNER INC·Filed 2001·Granted Jun 24, 2003·11 cites·20 claims
- 1669US6607850B2Hard steel articlesBORGWARNER INC·Filed 2002·Granted Aug 19, 2003·8 cites·8 claims
- 1767US5700215AHydraulic tensioner with piston retention stopBORG WARNER AUTOMOTIVE KK·Filed 1996·Granted Dec 23, 1997·21 cites·4 claims
- 1864US6358168B1Hydraulic tensioner with seal cap forming an external oil reservoirBORG WARNER AUTOMOTIVE KK·Filed 2000·Granted Mar 19, 2002·10 cites·9 claims
- 1956US5842943AHydraulic tensioner having an oil reservoir sponge memberBORG WARNER AUTOMOTIVE KK·Filed 1997·Granted Dec 1, 1998·14 cites·8 claims
- 2043US6676550B2Blade tensionerBORG WARNER AUTOMOTIVE KK·Filed 2001·Granted Jan 13, 2004·1 cites·20 claims
- 2141US2002119852A1Chain pin and method of manufacturing sameFiled 2001·Application pending·0 cites
- 2237US2002039941A1Blade-type chain tensionerBORG WARNER AUTOMOTIVE KK·Filed 2001·Application pending·0 cites
- 2336US2002142872A1Blade tensionerBORG WARNER AUTOMOTIVE KK·Filed 2001·Application pending·0 cites
- 2436US2002069539A1Blade tensionerBORG WARNER AUTOMOTIVE KK·Filed 2001·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Naosumi Tada files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →