Assignee
NAKANISHI DENTAL MFG
JP·24 granted patents·649 citations·filing 1975–1995
Top patents by PatentIndex Score
24 records- 0192US5380201ADental handpiece having cleaning unitNAKANISHI DENTAL MFG·Filed 1993·Granted Jan 10, 1995·176 cites·2 claims
- 0286US4595363ADental handpiece having means for opening and closing a chuckNAKANISHI DENTAL MFG·Filed 1984·Granted Jun 17, 1986·43 cites·4 claims
- 0380US5423678AHandpiece having bearing protective memberNAKANISHI DENTAL MFG·Filed 1994·Granted Jun 13, 1995·36 cites·4 claims
- 0475US4403956ADental handpiece having an optical fiberscopeNAKANISHI DENTAL MFG·Filed 1981·Granted Sep 13, 1983·41 cites·3 claims
- 0571US4493645ADevice for opening and closing a chuck for a dental handpieceNAKANISHI DENTAL MFG·Filed 1983·Granted Jan 15, 1985·33 cites·7 claims
- 0666US4371341ADental handpieceNAKANISHI DENTAL MFG·Filed 1981·Granted Feb 1, 1983·28 cites·3 claims
- 0761US5037299AChucking device for dental handpieceNAKANISHI DENTAL MFG·Filed 1991·Granted Aug 6, 1991·37 cites·10 claims
- 0860US4533324AAir driven dental handpieceNAKANISHI DENTAL MFG·Filed 1984·Granted Aug 6, 1985·22 cites·1 claims
- 0959US4578034ADental handpiece having an optical fiberscopeNAKANISHI DENTAL MFG·Filed 1984·Granted Mar 25, 1986·24 cites·2 claims
- 1057US4460341ADental handpieceNAKANISHI DENTAL MFG·Filed 1982·Granted Jul 17, 1984·23 cites·2 claims
- 1154US4797098AApparatus for dental treatment provided with check valve in fluid passageNAKANISHI DENTAL MFG·Filed 1987·Granted Jan 10, 1989·32 cites·4 claims
- 1251US4202102ADevice for opening and closing a chuck for a dental handpieceNAKANISHI DENTAL MFG·Filed 1978·Granted May 13, 1980·14 cites·3 claims
- 1349US5518398ADental handpiece having rotatable contact memberNAKANISHI DENTAL MFG·Filed 1994·Granted May 21, 1996·24 cites·3 claims
- 1448US4021917ADental handpiece and a cartridge for a head thereofNAKANISHI DENTAL MFG·Filed 1975·Granted May 10, 1977·15 cites·2 claims
- 1544US4619614ARotational coupling device for a dental handpiece having a built-in batteryNAKANISHI DENTAL MFG·Filed 1984·Granted Oct 28, 1986·14 cites·3 claims
- 1642US5252065ACartridge type dental handpieceNAKANISHI DENTAL MFG·Filed 1992·Granted Oct 12, 1993·16 cites·6 claims
- 1742US4433957ATransmission gear for a dental handpieceNAKANISHI DENTAL MFG·Filed 1982·Granted Feb 28, 1984·12 cites·3 claims
- 1840US5616029ADental treatment device for forming screw hole for embedment of implant materialNAKANISHI DENTAL MFG·Filed 1995·Granted Apr 1, 1997·13 cites·4 claims
- 1940US5074788ADevice for preventing intrusion of foreign matter into dental handpieceNAKANISHI DENTAL MFG·Filed 1991·Granted Dec 24, 1991·14 cites·6 claims
- 2040US5074789AChucking device for dental handpieceNAKANISHI DENTAL MFG·Filed 1990·Granted Dec 24, 1991·14 cites·11 claims
- 2136US5617759AMechanism for machining and grinding tool for converting rotational movement into reciprocating movementNAKANISHI DENTAL MFG·Filed 1995·Granted Apr 8, 1997·5 cites·5 claims
- 2230US5407352ATransparent dental tube unitNAKANISHI DENTAL MFG·Filed 1993·Granted Apr 18, 1995·5 cites·16 claims
- 2328US5244384ADental handpiece apparatus having heating unitNAKANISHI DENTAL MFG·Filed 1992·Granted Sep 14, 1993·1 cites·8 claims
- 2423US4490113ADental handpieceNAKANISHI DENTAL MFG·Filed 1984·Granted Dec 25, 1984·7 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →