Assignee
NITTO KOHKI CO
JP·300 granted patents·8 pending applications·8,416 citations·filing 1974–2025
Top patents by PatentIndex Score
308 records- 0199US7936142B2Portable drilling deviceNITTO KOHKI CO·Filed 2006·Granted May 3, 2011·977 cites·20 claims
- 0298US7121773B2Electric drill apparatusNITTO KOHKI CO·Filed 2003·Granted Oct 17, 2006·991 cites·21 claims
- 0398USD313067SQuick release couplingNITTO KOHKI CO·Filed 1988·Granted Dec 18, 1990·103 cites·1 claims
- 0497US7464769B2Electric screwdriver and a controller thereofNITTO KOHKI CO·Filed 2007·Granted Dec 16, 2008·81 cites·8 claims
- 0597USD482761SPipe coupling plugNITTO KOHKI CO·Filed 2002·Granted Nov 25, 2003·94 cites·1 claims
- 0696US5090747ACoupling socketNITTO KOHKI CO·Filed 1990·Granted Feb 25, 1992·147 cites·2 claims
- 0795US11530768B2Pipe coupling having valve element and coil spring for use thereinNITTO KOHKI CO·Filed 2021·Granted Dec 20, 2022·5 cites·7 claims
- 0895US7708029B2Coupling member of pipe couplingNITTO KOHKI CO·Filed 2007·Granted May 4, 2010·39 cites·1 claims
- 0995US5023438APortable data input apparatus with different display modesNITTO KOHKI CO·Filed 1989·Granted Jun 11, 1991·124 cites·14 claims
- 1095US4829889ADispenserNITTO KOHKI CO·Filed 1988·Granted May 16, 1989·121 cites·21 claims
- 1194US6899132B2Fluid couplerNITTO KOHKI CO·Filed 2003·Granted May 31, 2005·55 cites·26 claims
- 1294US6886803B2Female and male couplers of pipe couplingNITTO KOHKI CO·Filed 2004·Granted May 3, 2005·82 cites·16 claims
- 1394USD412738SSocket of pipe couplingNITTO KOHKI CO·Filed 1998·Granted Aug 10, 1999·58 cites·1 claims
- 1494US4891915ADisk grinderNITTO KOHKI CO·Filed 1988·Granted Jan 9, 1990·59 cites·2 claims
- 1593US10514121B2Emergency detachable pipe couplingNITTO KOHKI CO·Filed 2017·Granted Dec 24, 2019·11 cites·16 claims
- 1693US9528649B2Female joint having safety functionNITTO KOHKI CO·Filed 2015·Granted Dec 27, 2016·10 cites·8 claims
- 1793US7497231B2Female coupling member of pipe couplingNITTO KOHKI CO·Filed 2007·Granted Mar 3, 2009·34 cites·9 claims
- 1892US4583255AMassage arrangement of the pneumatic typeNITTO KOHKI CO·Filed 1984·Granted Apr 22, 1986·122 cites·4 claims
- 1991USD463537SPlug of pipe couplingNITTO KOHKI CO·Filed 2001·Granted Sep 24, 2002·78 cites·1 claims
- 2091US5011379AElectromagnetic diaphragm pumpNITTO KOHKI CO·Filed 1989·Granted Apr 30, 1991·68 cites·5 claims
- 2191US4604006ADrilling machine having electromagnetic baseNITTO KOHKI CO·Filed 1985·Granted Aug 5, 1986·65 cites·1 claims
- 2291US4559577ADrilling machineNITTO KOHKI CO·Filed 1983·Granted Dec 17, 1985·56 cites·5 claims
- 2390US10415734B2Pipe couplingNITTO KOHKI CO·Filed 2017·Granted Sep 17, 2019·6 cites·10 claims
- 2490US7862267B2Rotary cutting machineNITTO KOHKI CO·Filed 2009·Granted Jan 4, 2011·11 cites·2 claims
- 2590US4907830AFluid couplingNITTO KOHKI CO·Filed 1988·Granted Mar 13, 1990·84 cites·8 claims
- 2690US4331177APipe couplingNITTO KOHKI CO·Filed 1979·Granted May 25, 1982·49 cites·16 claims
- 2789US7661725B2Coupling and socket thereofNITTO KOHKI CO·Filed 2007·Granted Feb 16, 2010·25 cites·16 claims
- 2889USD471261SSocket of pipe couplingNITTO KOHKI CO·Filed 2002·Granted Mar 4, 2003·50 cites·1 claims
- 2989US5494073AFluid connectorNITTO KOHKI CO·Filed 1994·Granted Feb 27, 1996·63 cites·18 claims
- 3089US5065003APortable data input/transmission apparatusNITTO KOHKI CO·Filed 1990·Granted Nov 12, 1991·102 cites·7 claims
- 3189US4733692ATube couplingNITTO KOHKI CO·Filed 1986·Granted Mar 29, 1988·68 cites·1 claims
- 3289US4498658APipe coupler arrangementNITTO KOHKI CO·Filed 1982·Granted Feb 12, 1985·65 cites·8 claims
- 3388USD785144SSealing ring for pipe couplingNITTO KOHKI CO·Filed 2016·Granted Apr 25, 2017·33 cites·1 claims
- 3488US9511468B2Belt-type grinding toolNITTO KOHKI CO·Filed 2015·Granted Dec 6, 2016·4 cites·14 claims
- 3588US7331813B2Plug-socket assemblyNITTO KOHKI CO·Filed 2006·Granted Feb 19, 2008·27 cites·10 claims
- 3688USD434834SPlug for pipe couplingNITTO KOHKI CO·Filed 1999·Granted Dec 5, 2000·37 cites·1 claims
- 3788US5293156AHand tool driven by DC battery with multiple level battery condition indicatorNITTO KOHKI CO·Filed 1992·Granted Mar 8, 1994·68 cites·8 claims
- 3887USD442267SPipe coupling socketNITTO KOHKI CO·Filed 2000·Granted May 15, 2001·41 cites·1 claims
- 3987US6203510B1Compressing device for pneumatic massagerNITTO KOHKI CO·Filed 1998·Granted Mar 20, 2001·93 cites·14 claims
- 4087US5261677ASeal ringNITTO KOHKI CO·Filed 1992·Granted Nov 16, 1993·57 cites·5 claims
- 4186US10724666B2Coupling memberNITTO KOHKI CO·Filed 2018·Granted Jul 28, 2020·4 cites·6 claims
- 4286US10663099B2Pipe coupling comprising female coupling member and male coupling memberNITTO KOHKI CO·Filed 2018·Granted May 26, 2020·4 cites·16 claims
- 4386US8342202B2Pipe coupling member for high-pressure fluidNITTO KOHKI CO·Filed 2008·Granted Jan 1, 2013·20 cites·9 claims
- 4486US6422267B1Pipe couplingNITTO KOHKI CO·Filed 2001·Granted Jul 23, 2002·35 cites·9 claims
- 4586US5447397AApparatus for fixing an annular cutter to an arborNITTO KOHKI CO·Filed 1994·Granted Sep 5, 1995·51 cites·4 claims
- 4685US9707670B2Motor-driven screwdriverNITTO KOHKI CO·Filed 2016·Granted Jul 18, 2017·6 cites·7 claims
- 4785USD521614SFemale coupler of pipe couplingNITTO KOHKI CO·Filed 2004·Granted May 23, 2006·32 cites·1 claims
- 4885US6152496ASocket for pipe couplingNITTO KOHKI CO·Filed 1998·Granted Nov 28, 2000·62 cites·9 claims
- 4985US5096339AElectromagnetic base drill with antifloating control meansNITTO KOHKI CO·Filed 1991·Granted Mar 17, 1992·52 cites·14 claims
- 5085US5080405ACorrugated pipe couplingNITTO KOHKI CO·Filed 1990·Granted Jan 14, 1992·67 cites·5 claims
Showing the top 50 of 308 patent records by PatentIndex Score.
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