Assignee
CHUO HATSUJO KK
JP·68 granted patents·26 pending applications·1,394 citations·filing 1978–2024
Top patents by PatentIndex Score
94 records- 0199US6347561B2Push-pull control cableCHUO HATSUJO KK·Filed 2000·Granted Feb 19, 2002·68 cites·5 claims
- 0293US7407555B2Oil tempered wire for cold forming coil springsCHUO HATSUJO KK·Filed 2005·Granted Aug 5, 2008·14 cites·8 claims
- 0392US6375174B2Curved helical compression springCHUO HATSUJO KK·Filed 2001·Granted Apr 23, 2002·42 cites·6 claims
- 0492US4973077AStabilizer device for motor vehiclesCHUO HATSUJO KK·Filed 1990·Granted Nov 27, 1990·100 cites·6 claims
- 0592US4541303AFlexible coaxial pushpull cableCHUO HATSUJO KK·Filed 1984·Granted Sep 17, 1985·243 cites·11 claims
- 0687US6193816B1Spring with corrosion fatigue strengthCHUO HATSUJO KK·Filed 1998·Granted Feb 27, 2001·32 cites·20 claims
- 0786US6836964B2Method and apparatus for producing a helical springCHUO HATSUJO KK·Filed 2003·Granted Jan 4, 2005·36 cites·14 claims
- 0886US6224686B1High-strength valve spring and it's manufacturing methodCHUO HATSUJO KK·Filed 1999·Granted May 1, 2001·33 cites·22 claims
- 0985US7699943B2Method for manufacturing high-strength springCHUO HATSUJO KK·Filed 2004·Granted Apr 20, 2010·17 cites·19 claims
- 1082US7310942B2Exhaust passage control valveCHUO HATSUJO KK·Filed 2005·Granted Dec 25, 2007·18 cites·9 claims
- 1182US4248833AExhaust gas purifier system for internal combustion engineCHUO HATSUJO KK·Filed 1979·Granted Feb 3, 1981·34 cites·10 claims
- 1281US8349095B2Spring steel and spring having superior corrosion fatigue strengthCHUO HATSUJO KK·Filed 2010·Granted Jan 8, 2013·5 cites·20 claims
- 1381US7776440B2Spring coated with powder coating of epoxy resin and thermoplastic resinCHUO HATSUJO KK·Filed 2007·Granted Aug 17, 2010·10 cites·3 claims
- 1481US6194666B1Push pull type control cableCHUO HATSUJO KK·Filed 1999·Granted Feb 27, 2001·35 cites·6 claims
- 1580US6158800AFoldable device for a recline seat of an automobileCHUO HATSUJO KK·Filed 1999·Granted Dec 12, 2000·59 cites·8 claims
- 1679US6648996B2Method and apparatus for producing a helical springCHUO HATSUJO KK·Filed 2001·Granted Nov 18, 2003·22 cites·20 claims
- 1777US5941591AFoldable device for a recline seat of an automobileCHUO HATSUJO KK·Filed 1996·Granted Aug 24, 1999·56 cites·4 claims
- 1877US4278717AHeat resistant cushionCHUO HATSUJO KK·Filed 1979·Granted Jul 14, 1981·28 cites·11 claims
- 1975US6779564B2Method and apparatus for setting a helical compression springCHUO HATSUJO KK·Filed 2002·Granted Aug 24, 2004·22 cites·12 claims
- 2075US4158037AExhaust gas purifier for internal combustion engineCHUO HATSUJO KK·Filed 1978·Granted Jun 12, 1979·25 cites·6 claims
- 2175US2025067315A1Highly durable spring and method of coating the sameCHUO HATSUJO KK·Filed 2024·Application pending·0 cites
- 2274US6550301B2Method for producing an inclined helical springCHUO HATSUJO KK·Filed 2001·Granted Apr 22, 2003·17 cites·4 claims
- 2373US10920821B2Terminal securing deviceCHUO HATSUJO KK·Filed 2018·Granted Feb 16, 2021·1 cites·3 claims
- 2471US8356530B2Push-pull cableCHUO HATSUJO KK·Filed 2010·Granted Jan 22, 2013·3 cites·23 claims
- 2571US6712346B2Helical compression spring for a vehicle suspensionCHUO HATSUJO KK·Filed 2002·Granted Mar 30, 2004·21 cites·4 claims
- 2671US6543757B2Helical compression spring for a vehicle suspensionCHUO HATSUJO KK·Filed 2001·Granted Apr 8, 2003·21 cites·4 claims
- 2771US6381809B2Frictional hinge device and a portable business machine into which the frictional hinge device is incorporatedCHUO HATSUJO KK·Filed 2001·Granted May 7, 2002·19 cites·7 claims
- 2871US6338287B1Push-pull control cableCHUO HATSUJO KK·Filed 2000·Granted Jan 15, 2002·9 cites·4 claims
- 2971US6281928B1Positional detector device for a vehicular license plateCHUO HATSUJO KK·Filed 1998·Granted Aug 28, 2001·53 cites·4 claims
- 3070US7452397B2Filtration member for inflator and method of manufacturing the sameCHUO HATSUJO KK·Filed 2005·Granted Nov 18, 2008·7 cites·19 claims
- 3169US6340265B1Cable end fastening device for a vehicular remote control cableCHUO HATSUJO KK·Filed 1999·Granted Jan 22, 2002·28 cites·9 claims
- 3268US6027577AManufacturing method of valve spring superior in durabilityCHUO HATSUJO KK·Filed 1998·Granted Feb 22, 2000·17 cites·11 claims
- 3367US6718052B1Image emphasizing device for fingerprint verificationCHUO HATSUJO KK·Filed 2000·Granted Apr 6, 2004·14 cites·13 claims
- 3466US2017175216A1Electrical heating deviceCHUO HATSUJO KK·Filed 2017·Application pending·0 cites
- 3564US11773631B2Cover opening-closing deviceCHUO HATSUJO KK·Filed 2019·Granted Oct 3, 2023·2 cites·12 claims
- 3664US6328290B1Helical compression spring for a vehicle suspensionCHUO HATSUJO KK·Filed 1999·Granted Dec 11, 2001·27 cites·16 claims
- 3763US11052721B2Stabilizer deviceCHUO HATSUJO KK·Filed 2018·Granted Jul 6, 2021·2 cites·4 claims
- 3863US10022778B2Coil spring forming method and forming deviceCHUO HATSUJO KK·Filed 2014·Granted Jul 17, 2018·1 cites·20 claims
- 3963US6616131B2Helical compression spring for a vehicle suspensionCHUO HATSUJO KK·Filed 2001·Granted Sep 9, 2003·15 cites·4 claims
- 4061US12257869B2SpringCHUO HATSUJO KK·Filed 2019·Granted Mar 25, 2025·0 cites·8 claims
- 4159US9638238B2Terminal supporting apparatus for control cableCHUO HATSUJO KK·Filed 2012·Granted May 2, 2017·1 cites·4 claims
- 4258US6341407B1Frictional hinge device and a portable business device having the hinge device incorporated thereintoCHUO HATSUJO KK·Filed 2000·Granted Jan 29, 2002·8 cites·4 claims
- 4358US6199882B1Vehicle wheel suspensionCHUO HATSUJO KK·Filed 1999·Granted Mar 13, 2001·27 cites·7 claims
- 4458US5426708AFingerprint scanning device for use in identificationCHUO HATSUJO KK·Filed 1993·Granted Jun 20, 1995·65 cites·2 claims
- 4557US9915284B2Terminal supporting apparatus for control cableCHUO HATSUJO KK·Filed 2017·Granted Mar 13, 2018·0 cites·4 claims
- 4657US7079672B2Fingerprint image evaluating method and fingerprint matching deviceCHUO HATSUJO KK·Filed 2001·Granted Jul 18, 2006·15 cites·18 claims
- 4757US6148689AAnti-vibration resin structure for outer cable endCHUO HATSUJO KK·Filed 1999·Granted Nov 21, 2000·17 cites·7 claims
- 4857US5996763AGear shift lock device for a vehicular automatic transmissionCHUO HATSUJO KK·Filed 1998·Granted Dec 7, 1999·16 cites·5 claims
- 4957US2007267112A1Cold-formed spring having high fatigue strength and high corrosion fatigue strength, steel for such spring, and method of manufacturing such springCHUO HATSUJO KK·Filed 2007·Application pending·0 cites
- 5054US11752821B2SpringCHUO HATSUJO KK·Filed 2019·Granted Sep 12, 2023·0 cites·4 claims
Showing the top 50 of 94 patent records by PatentIndex Score.
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