Assignee
NIPPON FERROFLUIDICS KK
JP·10 granted patents·178 citations·filing 1986–1993
Top patents by PatentIndex Score
10 records- 0184US4847526AVariant-pole electric motorNIPPON FERROFLUIDICS KK·Filed 1986·Granted Jul 11, 1989·62 cites·8 claims
- 0267US5394044AMagnetic bearing deviceNIPPON FERROFLUIDICS KK·Filed 1993·Granted Feb 28, 1995·23 cites·4 claims
- 0363US5092740AComposite vacuum pumpNIPPON FERROFLUIDICS KK·Filed 1989·Granted Mar 3, 1992·22 cites·4 claims
- 0460US5372432ADynamic pressure bearing assemblyNIPPON FERROFLUIDICS KK·Filed 1993·Granted Dec 13, 1994·21 cites·1 claims
- 0555US5068558AMagnetic bearing deviceNIPPON FERROFLUIDICS KK·Filed 1990·Granted Nov 26, 1991·16 cites·1 claims
- 0644US5066879ASingle power source magnetic bearing deviceNIPPON FERROFLUIDICS KK·Filed 1990·Granted Nov 19, 1991·11 cites·1 claims
- 0737US5073737AMagnetic bearing deviceNIPPON FERROFLUIDICS KK·Filed 1990·Granted Dec 17, 1991·7 cites·2 claims
- 0836US5046151AMagnetic bearing deviceNIPPON FERROFLUIDICS KK·Filed 1990·Granted Sep 3, 1991·7 cites·1 claims
- 0933US5052697ASealing member for ferrofluid seal and method of producing the sameNIPPON FERROFLUIDICS KK·Filed 1989·Granted Oct 1, 1991·6 cites·7 claims
- 1032US4955731ABearing equipment for vacuum devicesNIPPON FERROFLUIDICS KK·Filed 1989·Granted Sep 11, 1990·3 cites·2 claims
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