Assignee
NAKANISHI INC
JP·71 granted patents·8 pending applications·883 citations·filing 1995–2025
Top patents by PatentIndex Score
79 records- 0193US7131838B2Dental apparatus and fluid reservoir for the sameNAKANISHI INC·Filed 2004·Granted Nov 7, 2006·101 cites·7 claims
- 0288USD550358SAir turbine handpieceNAKANISHI INC·Filed 2005·Granted Sep 4, 2007·38 cites·1 claims
- 0386USD533276SAir motor handpieceNAKANISHI INC·Filed 2005·Granted Dec 5, 2006·35 cites·1 claims
- 0484USD583052SDental handpieceNAKANISHI INC·Filed 2007·Granted Dec 16, 2008·29 cites·1 claims
- 0583US5908295ADental handpiece with lighting meansNAKANISHI INC·Filed 1998·Granted Jun 1, 1999·90 cites·8 claims
- 0680US6607384B1Lighting device for dental or medical instrument, and dental or medical instrument having lighting deviceNAKANISHI INC·Filed 2000·Granted Aug 19, 2003·36 cites·17 claims
- 0779US11413014B2Transducer cover, method for forming the cover, and ultrasonic medical instrument with the coverNAKANISHI INC·Filed 2019·Granted Aug 16, 2022·1 cites·6 claims
- 0878USD618353SController for dental or metalworking handpieceNAKANISHI INC·Filed 2008·Granted Jun 22, 2010·25 cites·1 claims
- 0978USD556323SAir turbine handpieceNAKANISHI INC·Filed 2005·Granted Nov 27, 2007·24 cites·1 claims
- 1076USD579195SCase for dental handpieceNAKANISHI INC·Filed 2008·Granted Oct 28, 2008·21 cites·1 claims
- 1175USD555241SStraight handpieceNAKANISHI INC·Filed 2005·Granted Nov 13, 2007·21 cites·1 claims
- 1274US10350316B2AutoclaveNAKANISHI INC·Filed 2014·Granted Jul 16, 2019·2 cites·7 claims
- 1374USD555244SControl unit for dental handpieceNAKANISHI INC·Filed 2006·Granted Nov 13, 2007·20 cites·1 claims
- 1473US7248792B2Dental water heaterNAKANISHI INC·Filed 2005·Granted Jul 24, 2007·16 cites·5 claims
- 1572USD631549SController for dental handpieceNAKANISHI INC·Filed 2009·Granted Jan 25, 2011·17 cites·1 claims
- 1672USD576729SJawbone cutting instrumentNAKANISHI INC·Filed 2007·Granted Sep 9, 2008·18 cites·1 claims
- 1772USD489134SScaler tipNAKANISHI INC·Filed 2003·Granted Apr 27, 2004·17 cites·1 claims
- 1872US6099308ADental handpiece with dust control mechanismNAKANISHI INC·Filed 1999·Granted Aug 8, 2000·24 cites·10 claims
- 1972US2026013972A1Dental handpieceNAKANISHI INC·Filed 2025·Application pending·0 cites
- 2071US8021152B2Dental handpieceNAKANISHI INC·Filed 2008·Granted Sep 20, 2011·2 cites·14 claims
- 2171USD547868SDental handpieceNAKANISHI INC·Filed 2006·Granted Jul 31, 2007·17 cites·1 claims
- 2270US12453618B2Abnormality determination device and abnormality determination method for dental handpieceNAKANISHI INC·Filed 2023·Granted Oct 28, 2025·0 cites·8 claims
- 2370US9649397B2SterilizerNAKANISHI INC·Filed 2013·Granted May 16, 2017·3 cites·8 claims
- 2470US6315559B1Prophy headNAKANISHI INC·Filed 2000·Granted Nov 13, 2001·17 cites·4 claims
- 2570US5911579ADental handpiece with baffle for stabilizing rolling bearing cageNAKANISHI INC·Filed 1998·Granted Jun 15, 1999·24 cites·7 claims
- 2669USD908888SController for dental equipmentNAKANISHI INC·Filed 2019·Granted Jan 26, 2021·10 cites·1 claims
- 2768USD645965SConnecting hose for dental handpieceNAKANISHI INC·Filed 2009·Granted Sep 27, 2011·16 cites·1 claims
- 2868USD597207SDental handpiece for cuttingNAKANISHI INC·Filed 2007·Granted Jul 28, 2009·15 cites·1 claims
- 2968USD539428SController for instrument for measuring root canal lengthNAKANISHI INC·Filed 2005·Granted Mar 27, 2007·16 cites·1 claims
- 3068US6390816B2Dental handpiece for injecting therapeutic agent containing powdersNAKANISHI INC·Filed 2001·Granted May 21, 2002·15 cites·7 claims
- 3166USD890357SSterilizerNAKANISHI INC·Filed 2019·Granted Jul 14, 2020·16 cites·1 claims
- 3266USD604412SDental handpieceNAKANISHI INC·Filed 2008·Granted Nov 17, 2009·14 cites·1 claims
- 3364US9827069B2Dental handpiece control apparatusNAKANISHI INC·Filed 2013·Granted Nov 28, 2017·3 cites·7 claims
- 3464US9468503B2Drive motor of dental handpieceNAKANISHI INC·Filed 2013·Granted Oct 18, 2016·1 cites·7 claims
- 3564US7070411B2Dental head unit capable of measuring root canal length, and contact holder assembly thereforNAKANISHI INC·Filed 2003·Granted Jul 4, 2006·10 cites·5 claims
- 3664US6821120B2Dental handpiece with tool holderNAKANISHI INC·Filed 2002·Granted Nov 23, 2004·10 cites·9 claims
- 3763US2023190407A1Dental handpieceNAKANISHI INC·Filed 2022·Application pending·0 cites
- 3861US8382783B2Medical handpieceNAKANISHI INC·Filed 2009·Granted Feb 26, 2013·1 cites·5 claims
- 3960US10433931B2Dental handpiece nozzleNAKANISHI INC·Filed 2014·Granted Oct 8, 2019·1 cites·3 claims
- 4060USD594556SDental handpieceNAKANISHI INC·Filed 2007·Granted Jun 16, 2009·11 cites·1 claims
- 4159USD631164SController for dental handpieceNAKANISHI INC·Filed 2009·Granted Jan 18, 2011·10 cites·1 claims
- 4257USD675321SController for dental handpieceNAKANISHI INC·Filed 2011·Granted Jan 29, 2013·10 cites·1 claims
- 4355USD525246SFoot pedalNAKANISHI INC·Filed 2005·Granted Jul 18, 2006·9 cites·1 claims
- 4453US12285306B2Dental handpiece and dental handpiece with cleaning adapterNAKANISHI INC·Filed 2022·Granted Apr 29, 2025·0 cites·15 claims
- 4553USD895801STip for ultrasonic handpiece for oral surgeryNAKANISHI INC·Filed 2018·Granted Sep 8, 2020·5 cites·1 claims
- 4653US6523979B1Lighting deviceNAKANISHI INC·Filed 2000·Granted Feb 25, 2003·6 cites·5 claims
- 4752USD924409SController for handpieceNAKANISHI INC·Filed 2019·Granted Jul 6, 2021·5 cites·1 claims
- 4852US10758318B2Electric motor and dental deviceNAKANISHI INC·Filed 2015·Granted Sep 1, 2020·0 cites·9 claims
- 4952USD699854SController for apex locatorNAKANISHI INC·Filed 2012·Granted Feb 18, 2014·7 cites·1 claims
- 5052US6599124B2Dental handpiece with angular contact ball bearingsNAKANISHI INC·Filed 2002·Granted Jul 29, 2003·4 cites·6 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when NAKANISHI INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →